Binary Acoustics Dynaquattro

nikbr

Headphoneus Supremus
Binary Dynaquattro - More Like Dynatrio+1, But Who's Counting When It's Good Anyway
Pros: Solid overall presentation, high quality shells, ergonomic despite being on the larger side, good cable, cool design, well executed warm tuning
Cons: The Dynaquattro name is a bit of a stretch, trebleheads better hide, slightly uneventful dynamics, likes power to shine
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This hobby is an escapist's dream. Escape from daily routine and distress that's causing you via something as sincere and everlasting as listening to music. I believe that the power of music is still not fully understood since it works in mysterious ways. Allow it to do its magic on you and let your worries dissolve in melody.

Having had the possibility to try so many different sets in a relatively short time I felt obliged to go ahead and express my gratitude by trying to help some lost souls out there, just as I was when I first stumbled upon this weird hobby about wired earphones – so yesteryear! … I thought. Possibilities are seemingly endless and only by getting to meet the right people did I manage to jump onboard the train heading the 'right' direction without getting off-track thousands of times along the way. Make sure to understand the helping person's preferences and you too can find your footing and hit the ground running in no time.


I won't bore you for too long with personal trivia, however my quick & short background resume goes as follows. Currently I am 27 years old and more in awe of sheer power of music by the day. I have always been moved by music just that slight bit more than average, I'd say. My spending started with a roughly 200€ Bose bluetooth speaker back in my first grade of highschool. What an extraterrestrial thing that was in early 2010s. And it keeps on playing to this day – a true testament of quality. Also sounded fantastic back then, nowadays … yeah, not so much. Lots of BT speakers, TWS, car audio speakers, IEMs, etc., later bring me to this day when I truly consider myself an audiophile. What brings me the most joy beside listening to music is singing, so I am currently participating in a choir and challenging myself with solo vocal covers (check the links in my signature to hear my projects). Unsure where all this leads, but the journey itself is marvelous and life is nothing but a journey.

My preference lies somewhere in the neutral camp with just an ever so slight tilt towards warmth, but I try to keep an open mind and truly appreciate any outliers that dare do it differently and succeed. Our ears vary, so do our brain and tastes. I am an advocate for respectful discourse, especially in topics that don't even have many objective undeniable truths. Audio is one of those.

Welcome to 2025 and with that a slight revision of my reviews. I will avoid all lengthy yet substance-light topics that are covered in marketing materials or are totally subjective, and instead focus fully on elucidating how the highlighted IEMs sound to my ears.

This is how I imagined setting it up: I will attach three adjectives to each of the usual topics – the bass, the midrange, the treble, and the technicalities – and elaborate why I deem those best describe the segment. I will then continue with my graphics and quick comparisons, check for the effect of source-rolling and IEM's scalability, and finish with a quick summary including who this set is (not) for.

I hope you find my newly revised approach an enjoyable and worthwhile read!

I am all about transparency, so to kick it off, this IEM was sent to me by HiFiGo in exchange for my review. They have no influence on what I write. And as always, I am grateful for the opportunity.

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THE MUSIC

To better understand what I listen to and thus perhaps have a clearer view as to what I look for, hiding behind the Spoiler is my list of 80 tracks (in alphabetical order) I skip through for reviewing purposes. This is of course only a snippet of my expansive playlists, but it should give you a rough idea. I am sure everyone can find something they are familiar with. I also warmly recommend trying any of these for yourselves on whatever setup you guys have!

11 Past The Hour – Imelda May
A Change Is Gonna Come – Sons of Serendip
After Love – Anyma, Delilah Montagu
Ain't No Love In The Heart Of The City – Robert Haglund
All About You – Sophie Zelmani
Animali in Marcia – Gianluigi Trovesi
Animamundi – The Spy From Cairo
Avratz – Infected Mushroom
Balazando – Ballake Sissoko, Vincent Segal
Blues For J – Julian Sas
Cadabra – Undercatt
Cannon in D Minor (Live) – Two Steps From Hell, Thomas Bergersen
Castaway Angels – Leprous
Creep – Scott Bradlee's Postmodern Jukebox, Haley Reinhart
Divine Moments Of Truth – Shpongle
Domino Line (Live) – Casiopea
Dream On - Scott Bradlee's Postmodern Jukebox, Morgan James
Drum Solo (Live) – Manu Katche, Luca Aquino, Tore Brunborg, Jim »James« Watson
Elementals – Kaminanda
Exhale The Ash – Ulcerate
Explore-the other side of stillness – Alanis Morissette
Eyes Don't Lie – Tones and I
Free Bird – Lynyrd Skynyrd
Godforsaken – Insomnium, Johanna Kurkela
Hislerim – Serhat Durmus, Zerrin
Hopeful – Curtis Harding
Horizon (Japan CD) – Daft Punk
House Of The Rising Sun – alt-J, Tuka
I Love You More Than You'll Ever Know – Vanessa Fernandez
I'm Done With You – Riverside
I'm In Love – Ayo
I Miss You – Adele
Improvisation (Live) – Emiel Scholsberg
Infinity (Original Mix) – DJ Pastis, DJ Ninu, Wasi Distorsion
Kingston – Rod Modell
Kuwait – Mazde
La Nut Sacree – Goran Bregović
La Vida Es Un Carneval – Celia Cruz
Let The Music Flow – Sound Synthesis
Liberty – Anette Askvik
Lonely Boy – The Black Keys
Lonely Island – Amble
Long After You Are Gone – Chris Jones
Metropolitain – Kyle Eastwood
Mirage – Glass Beams
Moondance – Anne Bisson, Paul Brochu, Jean-Bertrand Carbou
Morning Bird – Sade
My Funny Valentine (Live) – Emiel Scholsberg
Nice To Know You – Incubus
No Sanctuary Here – Chris Jones
Now That You've Gone – Kasey Chambers, The Fireside Disciples
On A Long Lonely Night – Sko/Torp
Our Roots Run Deep – Dominique Fils-Aime
Passenger 57 Main Title – Stanley Clarke
Piece By Piece – Katie Melua
Pitch Black – Mazde, Lissa
Puccini: Turrandot / Act 3: »Nessun Dorma« - Luciano Pavarotti
Rattlesnake – Glass Beams
Rosita – Coleman Hawkins, Ben Webster
Shivers – Ed Sheeran
Soldier Of Fortune – Deep Purple
Stormy Weather – Lucy Dixon
Summer – Emeli Sande
Take The Power Back – Rage Against The Machine
The Ballad Of The Jersey Wives – Jeff Beck
The Bird – SYML
The Last Rebel – Lynyrd Skynyrd
The Pot – TOOL
The Sound Of Silence – Geoff Castellucci
This Bitter Earth – Veronica Swift
Through Glass – Stone Sour
Ti Amo Cosi – Dimash Kudaibergen, Igor Krutoy, Aida Garifullina, Lara Fabian
Under Your Scars – Godsmack
Vidda – Ole Edvard Antonsen
Voodoo – Gorgon City
Want – The Cure
Way Down Deep – Jennifer Warnes
We Got Used To Us – Riverside
Winston Churchill's Boy – Benjamin Clementine
Witchcraft – Ben L'Oncle Soul
Writing's On The Wall – Tom Ball


THE SOUND CHARACTER

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Bass – grand, taught, soulful


Right off the bat, this is a very skillfully done bass. Whatever wizardry Binary Acoustics have done to implement it so nicely and make it fit the character they were aiming for has worked out. It manages to feel ever present while rarely being in the way, whether it be in Avratz from Infected Mushroom or Stormy Weather by Lucy Dixon. Just tremendous. While the quantity is so well measured, I also cannot stress enough that this is a very textured and soulful bass that captures my attention. All that would not mean much had it not been as taught as it is. What I miss is just that slightest bit of microdetail and delicacy in bass or bass guitars that further separates those best of the best IEMs for bass performance. To mention a potential negative, this is not as dynamic and punchy as some might like – for me, I appreciate its smoothness and feel it perfectly gels with the rest of the spectrum, so I do not feel annoyed by the slight lack of dynamism.

Midrange – warm, lush, timbrally delicious

I am very picky about my midrange and I have a few very significant pet peeves regarding timbre, tonality and vocal placement. Dynaquattro successfully avoids those and delivers a succulent and fruity midrange that is not muddied by the thickness of the bass and stands proudly and convincingly. The placement and its forwardness is largely dependent on the source. For the most part, I would describe the midrange as warm yet intricate and timbrally accurate. Guitars, piano, sax, whatever I throw at it, leaves the other side through its nozzle and hits my eardrum sounding correctly and naturally. It's that freshly squeezed orange juice including pulps, a vitamin bomb for the ears. Vocals, both male and female, are always dead center and just around my eye level both in height and depth, so while I would prefer them to stretch a bit further forward, I thoroughly enjoy the romanticism this sort of placement offers. They always have enough space and feel sufficiently 3D. They do not get drowned out no matter how busy the recording gets. Everything from The Sound Of Silence by Geoff Castellucci to I Miss You by Adele sounds correct and thoroughly touching, while not very nuanced. I would give a slight edge to male vocals overall, since certain females can feel just a bit too hefty or rounded. This is not a set for catching minute recording issues. Another negative I could mention is that the transients always feel on the softer side which takes off the edge but also reduces the detail retrieval and leans the sound very far towards musical over technical – just a part of the charm of this set, if you ask me.

Treble – subdued, shy, refined

It won't win any awards for the most airy, shimmery, detailed, nuanced, sweet, textured, etc. treble, but once more it fits in so well with what they were aiming for and serves as a supporting role, like those actors that are there just to make a crowd. Either way, it's done subtly but tastefully – a refined balance that some might love and others thoroughly dislike. The lack of air and a huge anti-sibilance dip affect the overtones of all higher-pitched instruments, but somehow their timbre remains intact, just a tad veiled as if you're listening in a very heavily treated room. I would not reach for this set to listen to things like Cannon in D Major by Two Steps From Hell or, for example, the Drum Solo (Live) by Manu Katche. The lack of treble energy and resolution means these sorts of tunes don't come alive and fall flat instead. This set is even more treble-shy than something like the AFUL Explorer for instance. It is therefore a very moody set that requires rested (and somewhat healthy) ears or else it might sound like an awfully muddy and seriously underwhelming listen.

Technicalities – spacious, non-detailed, second to musicality

Technical aspect was far from their focus when creating the Dynaquattro. It seems the development of these was more a case of »let's put these drivers in here, tune them well with warmth and musicality in mind, and we'll see what comes out in the form of technical prowess«. The answer is, well, not much. And I salute Binary Acoustics for that. We get so caught up in technicalities and trying to hear everything and have that scary sort of imaging that makes us jump out of our seats when something seemingly comes from behind us, but we forget to lay back, kick our feet up, and Just Listen. The whole appeal of this set is to get lost in music, not to be up on your toes and search for new unheard minutae of every song. I deeply enjoyed just how much this pulled me in and made me HEAR, not just listen.


THE GRAPHICS

By now, most of you have come across these playful graphics of mine. I have received so much positive feedback on these that I dare not leave them out going into 2025!

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THE COMPARISONS

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To further explain the character, I reached for some similar sets and quickly compared the three – Final E5000 (1DD), Venture Electronics SIE (1DD), and AFUL Explorer (1DD+2BA). I'm using a nuclear reactor, the VE Stack, to give them all the oomph ever.


The Final E5000 is eerily similar in most qualities, including uneasiness to drive. Its midrange feels a bit more expansive and it's treble just a tad more eager. The bass is more rumbly, but less textured going into the low midrange. Both offer a large soundstage and focus on delivering a musical journey. The height of the soundstage and subbass are better on the E5000, while the details are easier to pick up on the Dynaquattro. If you've got one, the other one is not necessary. The form factor and expansive soundscape make me announce the E5000 as the winner.

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VE SIE is way easier to drive and I nearly blew my ears off when I pressed play. It's much more resolving and better balanced throughout the spectrum. The high midrange feels a tad spicy versus the smooth DQ. On the SIE, hihats shimmer much more freely with better treble extension and texturing, but still lack the finesse, so I'm unsure whether it is a positive. Back to DQ, it rewards with its very earthy bass akin to really high quality woofers that are tuned higher, not with the aim to reach the teens of hz. The upper midrange is much less energetic and packs less information, but that's its charm. Note weight is more significant. Ultimately, SIE would fit more tastes I think. It's a tastefully done and, at least in isolation, a warmish sounding DD that can boogie. If I had to choose a winner – the Dynaquattro takes it.

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The AFUL Explorer is much livelier up top, while sporting a very similar midbass-first and well-textured bass. Midbass kicks better on the Explorer. The low midrange is more layered and nuanced on the DQ. Explorer loses some of Dynaquattro's naturalness in the midrange, sacrifices a tad of timbral sweetness and its treble feels more wet and grainy, but it's a nice complement to the DQ by feeling better balanced through the range. Having both in a collection makes sense, but being forced to choose one – it'd be the Dynaquattro.

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THE EFFECT OF SOURCES & SCALABILITY

The effect sources have on sets is often overlooked or at least not as highly regarded as it perhaps should be. While I still maintain the stance that the transducer is of main importance, sources follow right thereafter. Certain sets will be more responsive to various DAC/AMPs, while others seem to remain relatively unchanged and unaffected by source-rolling.

The Binary Dynaquattro seems to be one of those that adopts source's character quite significantly and can be swayed either way by a careful choice of source. So it sounds very polished on the HiBy R3II 2025; more digital on the FiiO BTR7 with clearer high midrange; grander but more snappy on the iBasso DX180; and the largest and very beautifully layered with ample bass on the Venture Electronics Prime DAC + Runabout AMP.

Another particular subject that is still somewhat of a mystery and a taboo, is whether IEMs scale with sources, and if so, why? We know IEMs barely use any power to play. And thus the often heard 'headroom' argument seems a bit moot. But there are certainly other aspects of Amp design that are well over my head and still somewhat unexplored or at least unexplained. Does the Dynaquattro scale? I feel it does. Going from my weakest to my most potent sources reveals a level of bass control, staging size and note weight improvements. Yes, this set likes power.


QUICK SUMMARY

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So in a few words, how did the Binary Acoustics Dynaquattro fare my updated reviewing methodology? This is a warm and lush set done right! It has no major issues and maintains composed throughout. What particularly stands out to me is the effortless timbre and taught bass that marries beautifully into the lower midrange. I particularly enjoy this set with music that is not too dependent on treble detail, since that is held back and not too crisp on the Dynaquattro. Considering the whole package, this set gets my recommendation to those that enjoy such tonality.


Thanks for reading and stay wonderful.
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FreeWheelinAudioLuv2
FreeWheelinAudioLuv2
The 7Hz FIVE is criminally underrated, and has two more DD than the DQ, and it's infinitely easier to drive, with natural tonality and nice bass. Slight U shaped goodness.
RESQFLYR
RESQFLYR
Seeing all of these pretty sweet IEMs being released, I wish I didn’t buy my latest EE Novus. The Novus are a sonic marvel though.
nikbr
nikbr
Yeah, lots of sweetness to be had at approachable prices nowadays. Ah, I bet Novus is on another level.

Kerwen911

New Head-Fier
Binary Acoustics Dynaquattro Review
Pros: I really like the gear panel design; I personally prefer a minimalist style, haha.
The comfort level is quite high.
Overall, the sound is very natural, and the combination of the three dynamic drivers + passive radiators works really well.
The separation between vocals and instruments is excellent.
Cons: The Trible lack a bit of spatial depth.
The heads are slightly large, but it doesn't affect the comfort.
It would be better if the cable were a bit softer.
Since they fit the ears so well, taking them off can be a bit challenging.
Introduction

This is the second pair of earphones I’ve reviewed, and it has given me a new perspective on earphones in the $200-$300 range. In the future, I will focus more on earphones within this price bracket. I believe that, with a limited budget, this price range definitely offers unique advantages. After all, who wouldn’t want to spend $300 and experience sound quality that rivals $500 or even higher-end models?

Declaration:I borrowed this pair of IEM from a friend. This review is not sponsored in any way; I’m simply sharing my thoughts as a new audiophile.
Configuration:4DD (Actually consists of 3 dynamic drivers + 1 passive diaphragm.)
Specifications:
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Well, the drive's part is a little bit misleading, I may think it has two passive diaphragms.

Unboxing & Accessories

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I received a black box from my friend, with four small yellow gears printed on it. At the bottom right corner, you can see the words "DYNA QUATTRO"; the front of the box has "Binary Acoustics" printed on it. Upon opening the outer hard cardboard, there’s a small black box with a lid. Honestly, I prefer the design of the NX8 because the process of waiting for it to slowly drop gave me a really unique experience.

After lifting the lid, I could see a black foam pad holding the headphones in place. I really like this panel; it’s quite minimalist. Beneath the foam, there’s a hard small box big enough to store the headphones.
Nothing particularly special, but the box is indeed very convenient.

Overall, it’s quite nice. If you look closely, you can actually see the word “Dynaquattro” engraved on the heads.

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First Listening Impression



I tried some classical songs this time.

Bach Goldberg Variations, BWV 988

Mozart Symphony in G minor

Chopin Nocturne # 20 in C Sharp Minor

I really enjoyed listening to classical music while watching Sons and Lovers. I really needed a cup of Americano. Overall, it felt great. The earphones fit very well and we really could listen to the music immersively.

Sound

Honestly, the Dynaquattro has provided me with a truly unique sound experience.
I would describe its sound as neutral yet warm. The bass has excellent extension, and the details in the bass are impressive. If you take the time to relax and truly appreciate classical music, it will definitely surprise you.

Bass

Its bass has excellent extension, and it never feels thin. This effect is especially noticeable when listening to guitar pieces.
For example,

Doublebass Sextett of the Berlin Philharmonic Orchestra

It really sounds great, although this isn’t my preferred genre. I just wanted to use this track to experience a different sound. One thing that stands out is the noticeable "backward" feel to the sound, which is quite unique.

Midrange

Yes, it indeed has a nice transition between the mids and lows.
I think it has a very distinctive characteristic: the separation between the sounds of instruments and vocals is quite pronounced. For example:

500 Miles Away From Home

When I listen to this song, it really makes me long for my hometown, which is about 100 kilometers away. What I want to highlight is that, aside from this, it does an excellent job distinguishing between male and female voices as well.

Lonely Warrior

This is one of my favorite songs. The sound is quite joyful and full of detail, and overall, it feels smooth. And it does a really good job of distinguishing between male and female voices.

Treble

It performs reasonably well. There's no harsh booming or dry sound, but it’s not particularly bright either. I think if it had more sense of space, it would definitely be more competitive.
However, there are areas where it excels. It certainly has enough energy to maintain vitality and clarity. If it could add more high-frequency detail, that would be even better.

Conclusion

Visually, I would rate this earphone 4.5 out of 5 because I really like the minimalist style. It combines simplicity with some delightful little details that are a nice surprise.

In terms of comfort, I’d give it a 4 out of 5. The earcups are a bit large, so when you first put them on, it feels like your ears are completely filled. After wearing them for a while, it can become a bit uncomfortable. But, I think this is a common trait of most IEMs, isn't it?

For sound, I’d give it a 4.5 out of 5. Overall, it performs really well, except that the high frequencies don’t fully satisfy me. Additionally, due to its larger size, it does a great job of immersing you in the music while reducing outside noise for a better noise isolation effect.

I would recommend it to those who enjoy an immersive listening experience and don't mind the feeling of their ears being filled.

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gadgetgod
gadgetgod
Nicely put review brother.
FreeWheelinAudioLuv2
FreeWheelinAudioLuv2
Very nice review!

MuddyCrab

New Head-Fier
The extra T is for Tuning | Dynaquattro Thoughts
The boring stuff:
Price:
$259.99 MSRP from Binary Audio website
Impedance: 23Ω@1kHz.
Sensitivity: 111dB/Vrms.
Drivers:
  • 10mm dual-diaphragm
  • A dual-magnetic dynamic driver with composite material diaphragm
  • 6mm passive diaphragm.
  • 8mm dynamic driver with a cermet textureless diaphragm
  • 6.8mm high-frequency dynamic driver with a pure aluminum material diaphragm
Materials:
Housing:
3D printing process using high-quality resin material
Face covers: CNC machining process finished with an Anodizing process

Disclaimer:
I’m more of a Tech head than audiophile and I use Youtube Music for 99% of my listening. Take everything I say with this in mind and please don’t come after me for not having refined taste. This is purely from my silly little point of view, of which you might be interested in.

Gear Used:
Streaming Platform:
Youtube Music Premium (Bitrate: 256kbps AAC & OPUS)
Dongle(Mobile use): USB to Lightning JCALLY JM08L
DAC (Desktop use:) Ugreen QCC3034

Box:
This thing’s packaging definitely leaves an impression with how imposing it is but it honestly feels like a waste of space and materials. I know these are getting up there in price and people want the unboxing to be an experience on its own but it always feels so unnecessary to me so I never cared much for big cardboard boxes that I’ll just stow away in a dark corner of my room.

But inside this stack of cardboard and foam is a pretty decent carrying / storage case that I wouldn’t actually mind using outside if i had nothing else to use. Yes it’s definitely on the chunky side and it’s hard plastic but at least it’s unique in a way that doesn’t make it unusable unlike some IEMs who’s included carrying case is definitely eye catching but impractical and feels like it was included just to help justify the price abit without really considering it’s usability.
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Build:
Overall build quality is lightweight and nice to hold. The design is very prominent and clearly seen from a distance while not being super loud and super obnoxious like some other IEMs lately where it feels like it’s their job to catch you attention and not produce sound. If there’s one thing

The included cable is also a very decent silver-ish braided cable that pairs with the IEMs very very well. They’re slightly on the thicker side so if you’re a person who wears glasses these will interfere with them a bit. They do tend to keep their memory very persistently so if you coil them for storage then they’ll just twirl about when you use them but that’s fairly common with these types of cables I think.

Sound:
Sound wise tho these definitely do not disappoint. Although they’re a little harder to power than most of the IEMs i’ve tried they definitely don’t sound bad out just a normal Dongle but if possible definitely try these with a DAC. They’ve got a nice low end while that’s nice and boomy without being overbearing. I think they shine the most when you’re listening to deep and somber male vocals like Solo(piano Version) - Myles Smith. You combine that great bass with male vocals and you get an amazing listen to Work song - Hozier, The bass just thumps your soul while you’re taking shots with Hozier and feeling everything as the backing choir washes over you.
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Nitpicks:
If there’s one thing to note from them build quality wise tho is that they don’t feel very premium in the hand or in ear. I know $259 isn’t the peak of luxury in the audio world but they definitely aren’t cheap by any measure. I’m not sure if the 3d printed resin or a cost saving measure or a tech thing but it kinda just makes it overall a little underwhelming material wise.

These also feel very present in your ears. What I mean by that is that they’re kinda hard to ignore even after a few minutes of listening. They’re not uncomfortable but they feel very big inside you (😏). It’s probably a shape thing and is most likely a subjective thing but if you’re a person who has a hard time fitting larger IEMs then I think that’s something to consider.

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Final Thoughts:
If what you’re after is great sound for your desktop setup or your HiFi DAP then these would make a pretty solid daily driver. Providing a fun sounding experience while not missing anything from the music itself. They may not feel the most premium but they do feel robust and should last a decent while. I’d look past these tho if you’re a mobile user who primarily uses a dongle instead of a DAC, they’re not a terrible listen mind you but you will definitely feel that something is a little lacking compared to when you’ve got these plugged into something a little more substantial.

But remember, music is a personal experience, and you should find the gear that makes you enjoy your music the most regardless of what a graph says.
S
syd67
I bought it but the sound setting is not impressive. a very unpleasant peak at 3-4khz. I regretted the purchase. They were supposed to cost no more than $150.

SushiiFi

100+ Head-Fier
Unique Driver Configuration Done Well
Pros: - Very good bass quality
- Very good female vocals
- Wide Stage
- Good modular cable
- Excellent Carry Case
Cons: - Treble need refinement
- Slightly pushed-back male vocals
- Stubby and thick nozzle
- Harder to drive
Specs And Driver Configuration
  • 3 DD + 1 Passive Diaphragm Driver Setup Per Side
  • 10mm DD (Bass) + 8mm DD (Mids) + 6.8mm DD (Treble) + 6mm passive radiator
  • Three-way crossover
  • Impedance: 23Ω@1kHz
  • Sensitivity: 111dB/Vrms
Before starting the review I want to thank Binary Acoustics for arranging a review tour of this iem in my country.


Accessories Package


As this is a review sample I only got the iem, cable, and carry case so I can comment on those only. The case provided is excellent it is Pelikan like case. It is sturdy and robust.

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The inner volume is perfect so putting iems iems in and out of the case is easy. One drawback of this style of case is its bulkiness, it is not pocket-friendly. It is more like a travel case you put your iems inside it and then put it in your bag.

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Just like the case, I am very much impressed by the cable provided as well. The cable is modular so you can switch out terminations easily.

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One thing I like about this modular cable is that it has threaded modular termination instead of friction-fit terminations. This will increase the durability and lifespan of the modular mechanism.

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The cable feels sturdy and robust but I can’t call it supple and soft. It has a slight memory tho. But it is still very good for the price.

Design, Fit, and Comfort

Dynaquattro’s design has an industrial look to it. It looks very professional and upmarket. It is not as flashy as other resin iems. It is perfect for people who want an iem that looks professional and less blingy. I personally like the design of this iem very much.

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The iem has a matte black translucent resin shell with a metal face plate. The build quality of this iem is excellent. It feels sturdy and robust. Dynaquattro strikes the perfect balance between weight and build quality. It does not feel heavy, yet it has a sense of robustness to it.

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The fit and comfort of this iem is decent. It has a fat and stubby nozzle, so getting a perfect fit is slightly challenging. So, I recommend you to tip roll a bit. I got the best fit and comfort with Dunu S&S tips.

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The iem has molded in the shells as well, so the fit stability provided is also very good. The iems do not have any pressure build-up issues yet it offers a good amount of isolation.

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Drivability

Dynaquattro needs power. I recommend using a source with good power so that you extract the fullest out of this iem. For my testing, I used Quedelix 5k in high gain out of balanced port and I had to push the volume dial. To check the scaling I then connected Topping NX7 to Quedelix 5k, the sound didn't change much, just the bass got slightly more punchy and dynamic. So, you will be fine if you have a decent enough source.

Frequency Response

I used dunu S&S tips for sound evaluation. Dynaquattro has a very balanced sound signature.

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Bass

The bass is one of the highlighting points of this iem. The bass profile is sub-bass over mid-bass. The bass glides smoothly from sub-bass to mid-bass. The bass region overall is very dynamic and punchy. The sub-bass hits deep and low. The sub-bass rumble and texture is also very good for the price. The mid-bass thumps and slam is also very good. The bass quantity is in no way bass head level but the quality of bass present is very commendable.

Mids

Mids are also very good on Dynaquattro. I find the lower mids to be slightly recessed, but to balance this out the upper mids are slightly boosted. The instruments sound natural enough. Male vocals have enough heft to sound natural but I find male vocals to be slightly pushed back. On the other hand, female vocals are very good, they feel open and extended. The mid-range push makes the female vocals extra sweet and extended. Dynaquattro favors female vocals over male vocals.

Treble

The treble is solid, but it could benefit from some refinement. I wanted the treble to be more smoother. There is a dip in the treble at around 9k. Then there is a peak in the air region to increase the sense of air and extension. But I wanted a little bit more air to increase the sense of detail retrieval. The treble is incisive enough with good detail retrieval. The treble region never gets too much.


Detail retrieval and Technical Performance

The detail retrieval and technical performance is good for the price. The macro and micro detail pickup is decent. The stage is wider than I expected with decent front and back depth. Instrument separation and layering is very good. Imaging performance is also very good.

Dynaquattro Vs Juzear 61t

In terms of styling 61t has more out there faceplate with vibrant colors, when compared to the more professional look of the dynaquattro. I am personally drawn towards the more blingy and out-there look of 61t.
I like the fit of 61t better. It is slightly comfortable in my ear canal. But 61t has slight pressure buildup when compared to dynaquattro. Due to this, isolation is slightly better on 61t.

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When it comes to accessories the build quality of Dynaquattro’s case is better but 61t’s case is more pocketable. In terms of cable, 61t’s cable is non-modular when compared to dynaquattro’s modular cable. But, in terms of quality, I like 61t’s cable, it is supple yet feels very robust.

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Now the main part is sound. Dynaquattro has a balanced sound signature on the other hand Juzear 61t has a warm laid-back kind of sound signature.

61t has more bass quantity. But, In terms of quality, I feel dynaquattro edges out 61t here, Sub bass feels more rumbly on dynaquattro. Mid-bass tump and sense of slam is also slightly better on dynaquattro. When comes to mids. 61t has warmer lower mids and slightly relaxed upper mids. 61t favours male vocals and dynaquattro favours female vocals. 61t presents a thicker presentation. In terms of treble, I straight up prefer 61t here. Treble is smoother on 61t and has better extension and sense of detail retrieval.

The macro detail retrieval performance is almost at the same level and in terms of micro detail performance 61t edges out dynaquattro by a very slight margin. The stage is wider on dynaquattro, the stage on dynaquattro feels holographic when compared to the 2-D feeling stage. Instrument separation is slightly better on dynaquattro as well. Layering and imaging performance is a toss-up between the two.

Conclusion

Binary tried something new with the dynaquattro. 3DD + 1 Passive Diaphragm. This is a fairly unique driver setup and pulling this kind of driver setup with this kind of sophistication is very commendable. If you are looking for an iem in 250 dollar price range I will recommend you to have a look at Dynaquattro.

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J
jmwant
Excellent review. There so many good sets at $200-$250 price range it's kinda hard to decide. Write-ups like this help us a lot.

Argha

100+ Head-Fier
The BIG-BOY Sound
Pros: Sounds huge ( The scope of the sound is very big as well as the projection of every instrument )
Impressive way of doing soundstage ( In both height and width )
Excellent Low-End delivery
Very safe for long listening sessions
Cons: Resolution & Details are not upfront
Needs quality amplification to achieve its true potential
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Shout-out to HiFiGo and @gadgetgod for providing me with this IEM for this review. I will not keep it after the review. All thoughts and opinions are mine and completely true to my findings and observations. No one paid or influenced me to write anything good or bad about the products.

Unaffiliated Link - Binary Dynaquattro 4 Dynamic Driver IEMs

Introduction to the sound


The sound from these IEMs can be summed up in one word: HUGE. Everything feels HUGE. The soundstage is expansive and the bass is deep. If you've ever experienced tall drivers in planar headphones, you know how a larger driver can create a taller sound profile compared to smaller ones. This gives you that same feeling. The audio is powerful and confident, yet still feels controlled.

Why this IEM is important to me

What if I told you that the total surface area of the diaphragm could be significant? I used to be pretty amazed by how Single Dynamic Driver (DD) IEMs made a splash in the market, even if it was just a little. IEMs like the IE600, IE900, and Softears Twilight ( Which is way more expensive than this IEM and I am not trying to compare them even a bit ) impressed me with how great a single DD can sound. These companies have invested a ton of time and money into figuring out how to make a single DD produce a sound that can really wow you on the first listen. The small drivers in the IE600 and IE900 sounded so fantastic that it was hard to believe they were just tiny DDs. Why so much fascination with DD? It’s all about the timbre and the way everything sounds so balanced in the frequency response. Dynamic drivers have a much better timbre and tonality compared to Planar and BA drivers, which is why I prefer them. But here’s the thing: I always thought the diaphragm's surface area wasn’t that important. This IEM has made me reconsider that belief.

Insider Information


This IEM houses 3 active drivers sized 10mm, 8mm, and 6.8mm with a 3-way crossover and one passive radiator of 6mm. The shells feel robust and heavy. The cable is pretty good with an interchangeable connection (4.4mm & 3.5mm). Let's dive into the details of how this driver madness actually works out.

Note - This IEM requires a lot of power to show its full potential. I used it with Abigail Pro and it sounded muted in the overall FR. I switched to Dawn Pro and it got a bit of improvement there but it was still lacking the magic. Then I connected it to the Astell and Kern PA10 and it just sounded massively better on high gain. Then, at last, I plugged it into the JDS ATOM 2 and it stopped scaling from there.

Objective Analysis

Subbass ( Someone give this IEM a Crown )

  • The bass is not shy of showing off the huge elevation
  • It feels boomy and full of air thump
  • Amplitude is very high and extracts low-end from bass-shy songs
  • Deep Extension and distinction are properly executed
  • Attack and Decay is Slow & very vintage-sounding
  • Textural information was not that great
  • Resolution won’t wow you as well as microdetails

Bass ( Crown is not enough, it deserves more )
  • As authoritative as the sub-bass and beautifully compliments the sub-bass extension
  • Very well-balanced sounding (doesn’t overpower/underpower anything peripherally)
  • Feels thumpy, the fun element in this range is there in full quantity
  • Cohesive! The sub-bass to midbass to mids sound extremely coherent
  • Some effects on the vocals are observable (Lower Mids Feels just a tiny bit forward)
  • The air push is perfect, it feels like a diffused subwoofer
  • The combination of sub-bass and midbass in every kind of music is plenty
  • The amplitude is almost basshead level for me
  • Texturing is not as great as usual
  • Micro Detail and Resolution are OK for the price not too impressive

Lower midrange ( OK! Not everything is as good as the bass )
  • A tiny bit more forward than neutral
  • Warmth can be felt yet vocals are not lush sounding
  • The treble makes the lower midrange safe and texturally somewhat blunt
  • The timber is hint exaggerated towards richness in tonality rather than being lifelike
  • Zero Dryness/Roughness can be felt in the vocals
  • The space is intimate with the vocalists (which I like)
  • Very average in resolution
  • Textuxing is very average too

Upper Midrange ( Very Safe )
  • It is on the safer side of the tuning
  • Good Texturing can be observed here in terms of micro-details
  • Space and air in this region for vocals is very average
  • Zero Fatigue felt even after hours of listening
  • No Sibilance can be observed even at higher volumes
  • No sparkle and sizzle can be achieved due to the tuning choice, which I miss a bit
  • Exaggerated and enriched sense of the Timber characteristics
  • Separation is very average in this region
  • OK Details for the price at this frequency range


Treble ( The tradeoffs )
  • The lower treble on the other hand is a lot more detailed than the upper treble
  • The treble feels snappy enough & not overly speedy
  • I EQed the 10khz range and it is giving me a better trailing edge and micro-contrast
  • The presence range felt a bit missing
  • The is some lack of micro-details after 10Khz
  • The air extension is somewhat missing sometimes
  • Overall the transient nature is not there (In treble only)

Subjective Analysis

This IEM excels in subjective sound quality with excellent technicalities. It sounds like a more mature and refined IEM than most IEMs I tried at this price point.

Soundstage (BIG! BIGGER! BIGGEST? )

  • Soundstaging capabilities are very well utilised even though it is not very stretched
  • Reverberations are very enjoyable in the stage
  • It is not overly stretched to give a stereo separation benefit
  • Spherical and round in all directions which creates a holographic sense of positioning
  • Projection is excellent, the instruments felt larger and huge compared to most IEMs
  • The scope of the soundstage is huge & tall

Imaging
  • Stereo imaging is very good, although it might not feel overly snappy
  • Pinpoint accuracy can’t be achieved in the stereo-width, but it does provide a very good 3D localized plane to place instruments which gives a holographic feeling of the soundstage
  • The depth perception is very good in comparison
  • Height is also excellent for the price, due to the vastness of the scope of sound
  • Doesn’t feel quick which is a preference of choice and suited for relaxed listening sessions

Resolution
  • The details are provided in such a way that it is comfortable for more than 5 hours of listening
  • OK in detail, it won’t blow everything out of the water nor will it feel under-detailed even a bit
  • The overall resolution is a bit on the softer side due to the lack of presence of the region in the frequency amplitude graph

Dynamics
  • Excellent dynamics
  • The fluidity and speed (transient speed) are among the best of the best under $300

Comparison

Hype 2
- These IEMs are different yet so similar. The bass is much better on Dynaquattro but the soundstage is more extended/stretched in Hype 2. Dynaquattro is a safe and very bassy IEM whereas Hype 2 is more neutral and treble is more extended/elevated. Details might be a bit better on Hype 2 but the overall scope of the sound, and the size of the sound are massively better on Dynaquattro.

61T - 61T is a lot more treble-focused and won’t give you the massive height. 61T is not as relaxed as Dynaquattro. 61T is a bit more detailed too. The Dynaquattro on the other hand is better in the bass delivery, timber is massively better, soundstage is properly done. Both are different and targeted towards different demographics, Dynaquattro is more low-end confident and relaxed listen, whereas 61T is more engaging and exciting.

DaVinci - These follow the same philosophy towards tuning. The vocals on the DaVinci are a bit better whereas the soundstage is more tall in Dynaquattro. The bass attack is much more impactful in Dynaquattro but the overall bass is more controlled in DaVinci. It's like choosing two different chocolate flavoured ice-cream. Take DaVinci if vocals are more important to you & take Dynaquattro if low-end delivery is more important to you.

Targeted Demographic

This IEM is made for someone who prefers Excellent low-end, which doesn't bleed into the vocals even a single bit, a smooth and relaxed treble representation, holds back a bit on the detail aggressiveness and gives you a tremendous amount of size to the music which sounds like a full-fledged headphone. I recommend this IEM with a big smile on my face.

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J
jmwant
Thanks for the comparison with hype 2 and DaVinci.
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Argha
Argha
You're welcome.

jreqtech

New Head-Fier
A Casual's Review of the Dynaquattro
Pros: - Build quality is superb
- The cable is of good quality
- Soundstage is considerably big, holographic imaging is AMAZING
- The tuning is neutral, perfect for me
- Bass is perfect!
Cons: - Bulky carrying case
- Nozzles are on the larger side, can be uncomfortable for those with narrow ear canals.
Disclaimer
Please note that I am not an audiophile, and this review does not delve into the technical aspects of the IEMs. My impressions are based on my personal preferences, and others may have different experiences with this product. I also have a very limited experience with audio products so please take this review with a grain of salt.

The Binary Dynaquattro was lent to me as part of a review tour in the Philippines.

Price: 259.99 USD
Link: https://hifigo.com/products/binary-dynaquattro

Part 1: General Product Details

Package Inclusions:

  • IEM shells & cable
  • Carry case
  • 6 pairs of eartips in 2 separate baggies inside a small plastic case
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The IEM Shells
  • The shell body is made of a translucent black plastic that when hit by light in a certain way will let you see a bit of the inner workings of the IEMS. The faceplate is made of CNC-ed aluminum, with some debossed gear designs, the inner recesses seem to be painted black.
  • The earpieces weigh ~6.6g. You will definitely feel the weight on your ears after some time.
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The Carrying Case
  • The carrying case is a clamshell made of thick abs plastic. The cover is transparent while the bottom is black. Inside is a
  • The carrying case is made of a matte plastic covering material that is prone to marks, so you have to be careful or you might scratch it easily.
  • It is also very bulky as a carrying case, weighing at 76g and has a dimensions of 8cm x 8cm x 3.5cm. I think it would be better called a storage case
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The Cable
  • Nicely wound and braided, the cables feel premium! It doesn’t tangle at all, but it definitely has “memory” - meaning if you leave it coiled in a certain way for some time, it will want to keep that form.
  • The chin clinch and splitter are also made of metal and feel heavy.
  • The jack can be switched between the included 3.5mm and 4.4mm! There’s a peg-and-hole to guide the insertion of the jack to the cable so you won’t get the orientation wrong.
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Part 2: Subjective review
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General Usage Impressions

  • I originally used small sized wide bore Divinus Velvet eartips. They were definitely comfortable eartips, but I found the nozzles were just too wide and it felt like it was directly scratching my ear canal, so I switched to my small CP100. The fit and seal were better but I would have really liked the softness of the velvet eartips.
  • The shell’s shape is great! It gave me a great seal that my wife had to shout at me a few times before I could hear her. 😂
  • Due to the weight of the shells as well as the splitter and chin clinch, I am unable to wear these for an extended period of time. 😞
Sound Impressions
  • Right off the bat, I noticed just how VAST the soundstage is, it’s so good! It’s very immersive, and I enjoyed using these IEMs for watching movies as well as competitive gaming.
  • Speaking of competitive, I felt like I had wallhacks while using these! I caught enemies trying to sneak behind me in multiple games of Overwatch
  • I love how balanced the sound profile of these IEMs are, they don’t fatigue me at all.
  • Listening to music has also been quite enjoyable!


Final Thoughts

The Dynaquattro is now one of my favorite IEMs! The sound, comfort, and build quality is perfect! If only it were a tad bit lighter, I would say these would be the most perfect IEMs for me! If I owned these, I would look into aftermarket cables to get rid of that weight.

The price isn’t for everybody, that’s for sure. But if you have a 250 USD budget and are looking for a premium-feeling and sounding IEM, these might be just for you!
J
jmwant
How's the driveability of the Dynaquatro? Heard it requires a lot of power.
jreqtech
jreqtech
@jmwant I wasn't aware of any power issues when I was trying it out. I'm mainly glued to my PC so I was using the ifi nano iDSD LE as source, but for mobile I was loaned a Letshuoer DT03, I think both were able to power the Dynaquattro well enough, though I wish I plugged them straight into my PC's audio jack just to check at least to see if there was any difference. 😅

d m41n man

100+ Head-Fier
Dynaquattro : Quadruple the Enjoyment
Pros: • Warm-neutral sound that is both energetic but non-fatiguing
• Very coherent despite the 3DD + 1 passive radiator config
• Natural timbre, very organic sounding
• Deep, defined, punchy bass but never overbearing
• Smooth, never harsh treble
• Nice accessories especially the sturdy, pelican-like case and modular cable
• Addictive listen
Cons: • Definitely needs some power and amping
• Could use a bit more sparkle and air
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Intro
Some brands, despite the lack of brand hype, just chain a couple of hits. Coming off the heels of their Timmy collab with the widely successful and popular Chopin, Binary is back with a sequel and it seems that they are both innovating and building upon the success and strengths of their prior release. With Letshuoer's DZ4 being the only other IEM I've heard with a similar configuration, the Dynaquattro sports 3 dynamic drivers and a passive radiator. The similarity ends there because the Dynaquattro retains what made the Chopin widely appreciated and at the same time fixed those what the majority thought were weaknesses. Let's take a look at Binary's latest effort and how it deserves a bit more word-of-mouth appreciation for its asking price. All in a different setup and package.

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Build and Package Inclusions
Packaged in a black box and a slipcover detailing the target graph and its contents, houses the IEMs already connected to its nicely built premium-feeling cable. If you're familiar with the Moondrop Variations, the IEM faceplate and shells do have a similar feel of 3D printing which I'd probably guess was made by Heygears, the same team behind the Variations and Blessing2 shells. The faceplate features a multiple gear silhouette design which I'd say is nicely done, both being classy and minimal. It includes 2 sets of 3 size-pair of silicon eartips which looks the same as the one used in the Chopin. It has a modular cable with both 4.4mm BAL and 3.5mm SE terminations which is very well-built. Similar to the recent modular cables, it has a screw-lock before you can connect/disconnect the termination. Lastly, it comes in a pelican-looking sturdy case in matte finish which I assume might be sealed for waterproofing. All of these product highlights are welcome and well thought of which speaks of robustness without the gloss and flashy colors.
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Sound and Comparisons
With this year's recent entry to mid-fi releases transitioning on a somewhat warm-neutral tonality, the Dynaquattro is a pleasant welcome surprise. This triple crossover, 4 dynamic driver (including a passive one) set that focuses on a balanced, warm sound that is both energetic and at the same time, not fatiguing. Timbre is done really well, with every element being natural and organic while the note weight transition from the lows to mids is superb. Bass reaches deep, is defined and impactful. Not muddy and overbearing at all which makes it feel like it was properly refined to a tee. The midrange and vocals are clear and articulate. The treble is smooth and inoffensive, just right to fit the overall signature though some might find that a tad bit of sparkle and air would make it close to flawless. The overall sound is kinda like a levelled up Chopin without the thinness though a bit less sparkly. Techs are no slouch as well for an all-DD set at this price-tier. Imaging and layering is pinpoint, staging is adequate though resolution and detail seem to let's say take a bit of less extraordinary status , being just average in its price range competition. Though with recent sets though that seem to aim for a warm-neutral target, first thing that comes into mind would be DUNU's DaVinci, which is coincidentally Timmy's third collab. I'll outright say that Binary's Dynaquattro is the better sounding set having the balance across the frequency spectrum, possessing the timbre advantage and is obviously the more refined tuned set, besting the DaVinci's kinda nasal vocals. Also, having a bit of bass bleed and the lack of special sauce of the DaVinci makes it somewhat the less remarkable set of the two which its crossover tech and driver-count underwhelmingly deliver. I'm not saying the DaVinci is bad but A-Bing it beside the Dynaquattro exposes its shortcomings despite the higher price tag.

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Conclusion
If I had a choice of a keeper set that is quite under-the-radar but has that warm-neutral sound that most sets are going for this year, I'd say go for the Dynaquattro. I find it hard to fault since the overall sound is so natural, well-refined and has a sense of balance to keep you listening for long periods all the while still having an enjoyable bassy profile. Was pleasantly surprised that a quad dynamic implementation can achieve such coherent sound. All this at the price of $260, I find the Dynaquattro will not disappoint anyone adding this to his lineup. Good job Binary!

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Sidenotes:
IEM set has been listened via the Sony ZX-707 and iFi Go Bar Kensei separately using the stock silicon eartips over the majority course of multiple genres across FLACs (16bit&24bit) and streaming (Tidal). The Binary Dynaquattro is available through HiFiGo for $259.99 - https://hifigo.com/products/binary-dynaquattro
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J
jmwant
The driver configuration is quite unique. Excellent review, loved the comparison with DaVinci.
d m41n man
d m41n man
Thanks @jmwant ! That's the immediate comparison that went into mind and I believe someone already did A-Bing with the Juzear 61T. Amongst the 3 warm neutrals or warm U-shaped, the Dynaquattro comes out on top for me in terms of sound with the lesser nitpicks.

SuperChonk

Member of the Trade: Project Perfection
Formerly known as captainmuffins
Binary Acoustics DynaQuattro
Pros: Coherent Tonality.
Lovely Build.
V Shaped Signature.
Very Clean Vocals
Good levels of Seperation
Cons: Nozzle lacks a lip.
Needs a bit of power.
Binary Acoustics DynaQuattro
Are we on the advent of another new trend of trying to squeeze as many dynamic drivers into a chassis? Today, we will be talking about the Binary Acoustics DynaQuattro, which is one of these types of earphones, except that one of the many drivers is a passive radiator.
Build Quality

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The DynaQuattro is largely made from resin, and it is the sort of finish that you should be quite familiar with if you have seen the Moondrop Variation. This is a matte 3D-printed chassis that kind of lets you see what’s going on inside, but not really.

The chassis feels quite sturdy and full. Moving on to the faceplate, this is machined and anodized aluminum with a similar gear motif on it. Because of this, the DynaQuattro looks quite iconic despite having a more generic custom universal shape. There is just something to this gear motif.

Also, the machined parts are quite deep and filled black, giving it more depth in appearance.

One thing that I need to point out that might be a point of contention for some is that the nozzle has no lip, but it is larger than normal, so normal-sized ear tips would grip on these quite tightly.

The DynaQuattro uses a 2-pin termination, so you can swap out the cables pretty easily if you want to.

The cable is made from silver-plated oxygen-free copper and has aesthetics that match well with the DynaQuattro. I like the sandy brown color. 3.5mm and 4.4mm plugs are included as well. The nice thing about this cable is that the termination swaps are now locking, which is a lot of levels up from the friction-based ones.
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Chassis and Drivers

Now to dive into the chassis of the DynaQuattro. This IEM is quite interesting as it is the second IEM that features multiple dynamic drivers inside it. The DynaQuattro features three dynamic drivers (10mm, 8mm, and 6.8mm) as well as one passive radiator.

They also utilized a 3-way crossover, which in this instance means that they can individually divide the frequencies to each driver, ensuring there are no overlaps.

Furthermore, the addition of the passive radiator makes a subtle change to the tone by introducing more resonance, giving the impression of more air in the signature.

Sound

The DynaQuattro features a V-shaped signature rendered through three dynamic drivers and one passive radiator, creating a rather interesting tonal color.

In the market these days, it is very common to hear this sort of signature rendered via hybrid designs, usually a 1 DD + a few BAs, but I found that tonally, that creates a different sort of rendering as there is a difference between how dynamic drivers and balanced armatures render music.

The DynaQuattro here is more cohesive in terms of tonal color as it is an all-dynamic driver set. I’m happy to add that when it comes to time alignment, the DynaQuattro, despite having multiple drivers, still does a good job.

For this review, the DynaQuattro was driven with either a Lotoo PAW Gold Touch or a Luxury and Precision W4.

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Bass

The DynaQuattro renders bass quite in line with the norm in 2024, featuring a linear transition from sub-bass to mid-bass.

Sub-bass has good weight and makes up the bulk of what you get in the bass region. It enables the DynaQuattro to maintain a very strong fundamental tone for other frequency bands to build upon. The passive radiator here helps as well, creating a sort of halo or resonance to give you the impression of a larger bass tone.

Mid-bass isn’t as emphasized here, but it isn’t deliberately scooped out either, ensuring you still have weight going into the midrange. There are still good, defined punches here, enabling music to be more engaging to listen to.

Dynamics on the DynaQuattro are quite enchanting. This complements modern recordings, which tend to sound compressed and unnatural. The DynaQuattro just injects naturalness into the tone.

Resolution here is also good on the whole, as you can hear the grooves and bass guitars pretty clearly.

Just one thing to add: the DynaQuattro are not basshead class IEMs, so if you are expecting that, I think you should look towards other IEMs out there.

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Midrange

When it comes to normal hybrid IEMs, this is a minor pet peeve of mine, but with mids rendered by BA, it takes me out of the cohesiveness in terms of sound.

The DynaQuattro, on the other hand, keeps the tonal color cohesive with the use of a DD for the midrange. It sounds like a normal extension from the bass and keeps the overall tonal color consistent.

The tonal weight of the DynaQuattro is natural, which is quite unexpected for me, and I enjoyed it being natural.

Vocals have good clarity, and when it comes to resolution, it delivers a strong performance. When listening for micro details, I’m happy to say that the DynaQuattro delivers an above-average performance.

Instruments here also have good separation, helped by the good levels of resolution.

Treble

Treble is balanced nicely in context with the mids and bass. It isn’t particularly bright or elevated, but maintains a balanced approach.

It renders treble in a way that it just does its job without any fuss or flashiness. As such, no sibilance was detected by me as it was smooth as well.

There is a moderate amount of air, creating a good sonic scape.

Soundstage

Width and Height: On the whole, a respectable performance on the DynaQuattro. The sound is considerably big and tall due to the nice levels of dynamics on offer.

Depth and Positioning: Good as well, from the admirable levels of dynamics. Positioning is aided by the good levels of clarity for you to pinpoint instruments.

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Comparison

VS Simgot EA1000

The Simgot EA1000 sits in a similar price bracket to the DynaQuattro and also uses a passive radiator in the tone, which brings about the similarities to the halation or resonance in tone.

The EA1000 features 1 DD + 1 passive radiator and, on the whole, is more coherent than the DynaQuattro, but that is pretty much expected.

The EA1000 features a V-shaped signature as well, but there is a slight emphasis on the upper-mids. I found the EA1000 to be a little more resolving compared to the DynaQuattro.

The DynaQuattro, on the other hand, is a little more polite sounding and maintains a glorious dynamic driver tonal color paired with nice dynamics. Although not as resolving as the EA1000, it is more polite sounding and should appeal to many.

VS Ziigaat Arete

The Ziigaat Arete is a hybrid IEM that features 1 DD + 4 BAs. Tonally, it isn’t as cohesive as the DynaQuattro, which features an all-DD build.

The Arete is tuned a little differently from the DynaQuattro, being warmer sounding by comparison. Dynamics are pretty good on the Arete as well.

Comparing the two, the Arete is warmer, and if you mainly listen to vocals, I think the Arete will charm you with the warmth in vocals.

The DynaQuattro, on the other hand, is more natural sounding and has about the same amount of details offered by the Arete.

Which to pick is really up to your preference.

VS 7hz Five

These are priced in a bracket below the DynaQuattro. But the interesting thing about the Fives is that it has five dynamic drivers.

Tonally, they are coherent like the DynaQuattro, but the Fives have a completely different character than the DynaQuattro. They have a warmer, fuller character by comparison and have a sound that is different from the meta, and I really like that.

The Fives have a meatier mid-bass and mids section compared to the DynaQuattro.

If I want to seriously listen to music, I’d go with the DynaQuattro. If I want to watch movies, the Fives.

Likes and Dislikes

I like that the DynaQuattro is largely tonally cohesive sounding and has very lovely dynamics. Accessory-wise, the reintroduction of an off-brand Pelican case is a nice touch, and if you are a very rough handler, it offers you enough protection when you bang your earphones around.

What isn’t the best about the DynaQuattro would be the huge nozzle. I think it’s a bit too big (that’s what she said). Lipless nozzles are not very fun when it comes to tip swapping, as I hate it when ear tips slip out (also, that’s what she said).

Ratings

Ok, so this is the first IEM that I am introducing my new rating system. It should be pretty self-explanatory.
Packaging on the DynaQuattro is pretty cool for its asking price. It was nice that they reintroduced the off-brand Pelican case.
When it comes to bass, the DynaQuattro renders it in a largely satisfying manner, deserving an 8.
The midrange is clean, with good resolution and a natural sound. I just wished for a tad bit more micro details. 7
Treble is present but not demanding most of your attention and just does its job well. Moderately airy, so a 7.
Resolution is quite lovely; as mentioned, I wished for a tad more micro details. A strong 7.5
Soundstage overall, good performance as well. 7

Overall, the DynaQuattro gets an enjoyment factor of A, which is great.
C
cliffmeister
Excellent review. I have the EA1000's myself. How does the Dynaquatto compare to the EA1000's when it comes to bass tactility? I've yet to find another IEM with that same satisfying bass quality (not quantity)

mars chan

New Head-Fier
Binary Acoustics Dynaquattro Review
Pros: .
- Great bass quality
- big soundstage
- very good design
- very good cable
- very good storage case
Cons: .
- the upper treble is slightly veiled.
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Binary Acoustics Dynaquattro Review
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I'm very grateful to be part of a review tour conducted by HiFiGo, a big online store that sells mouthwatering audio gear. Kindly visit their website to see for yourselves. HiFiGo, thank you for providing this review unit.
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The Dynaquattro:
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Eye-catching and attractive engraved faceplate design; the unboxing experience was very positive; I liked how it was packaged; it includes a very robust plastic storage case; a very good modular cable that I really like; eartips; and the IEMs themselves. I used the stock cable and eartips for this review, as I found no reason to change them because they sounded optimal.
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Sources:
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I used my Fiio M15s digital audio player (DAP) and my Letshuoer Audio DT03 digital to analog converter (DAC) with my phone to power the Dynaquattro, and they have great synergy together.
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Sensitivity, power handling, and drivability:
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It has below-average sensitivity, meaning you have to use a higher volume setting than you're used to, which also means that you can't use small, low-powered sources and expect the best out of the Binary Acoustics Dynaquattro. Fortunately, it can be driven quite easily by the sources I mentioned above. If you have sources that are similar to those, you should be fine.
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Dynamics:
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Despite having below-average sensitivity, I found no dynamics issue like a lack of energy in the sound—not too energetic or lethargic either; it sounds average in this department.
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Sound signature:
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Bassy and warm with moderate presence in the upper midrange and treble, it has a smooth and non-fatiguing sound.
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Soundstage and imaging:
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The spaciousness of the soundstage was the first thing I noticed about the Dynaquattro; the shape is spherical, but it sounds like you are positioned near the back row seats of a live concert. The imaging presentation is laid back, the images seem to sound from afar, and I can hear left-to-right instrument separation but not much front-to-back layering.
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Bass:
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The bass is the best part of this IEM; it goes very deep with very good texture, control, and low distortion. It sounds like two 12" subwoofers in a high-end car audio set-up; it sounds like it is moving a lot of air; you can really feel the drivers are hard at work; and the bass drivers on this set are very potent.
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Midrange:
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The second best part is that it sounds slightly warm but with good details, lushness, and spaciousness. It never became fatiguing for me; there was no shoutiness detected in the upper midrange, no distortion, and very clean sounding.
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Treble:
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The upper treble is very extended and has a sweet and delicate characteristic to it, but the micro details sound veiled and not as open-sounding as I like them to be. Overall, not bad; I've heard many IEMs that have more micro details.
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Pros:
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- Great bass quality
- big soundstage
- very good design
- very good cable
- very good storage case
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Cons:
.
- the upper treble is slightly veiled.
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Comparisons:
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I don't have a direct competitor for this right now; the Letshuoer DZ4 (80 USD) that I reviewed earlier also has three small DD drivers and a passive radiator, but it is at a much lower price point and was tuned differently; it is midrange forward tuning, the opposite of Dynaquattro tuning, so they are not comparable.
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I could have compared it to my Moondrop Blessing 3 (300 USD), but it is not with me right now. Based on memory, the Blessing 3 has much leaner bass, a more forward upper midrange and treble, and much more holographic imaging.
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If I compare it to my Dunu Falcon Ultra Ti (220 USD), again, they're not directly comparable, but I did. The Falcon Ultra Ti is more neutral and bright; it has much better imaging and holography, with a similar soundstage size.
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When compared to the Simgot EA1000 (220 USD), the Dynaquattro has much deeper bass, while the EA1000 has a much more extended treble. But again, they are not directly comparable.

Conclusion:

It's difficult to directly compare the Binary Acoustics Dynaquattro to others due to its unconventional driver configuration and unique sound. But nonetheless, the Binary Acoustics Dynaquattro deserves credit for its sound quality and also deserves a recommendation.

Happy listening! Cheers!

Non affiliated links:

Binary

HiFiGo

https://hifigo.com/products/binary-dynaquattro

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Ceeluh7

500+ Head-Fier
Binary Dynaquattro Review
Pros: -Solid, durable resin build

-The design is completely unique, CNC aluminum faceplate is tough

-Great modular cable & very nice pelican case included

-In fact, all accessories are very nice with the Dynaquattro

-Fantastic natural timbre

-Very cohesive sound across the mix for three DD’s

-Energetic and crisp warm/neutral sound with good macro-dynamics

-A very natural sounding set with good clarity

-Punchy & fast bass

-Midrange is open & airy with nice energy throughout

-Vocals are nice

-Sparkly treble, detailed, nice extension

-Detail Retrieval & resolution

-Instrument separation

-Stage has a very nice open feel. It’s expansive for an in-ear.
Cons: -The design may not be very appealing to everyone

-Fans of warm and thick may not be impressed

-May be too energetic for some

-Bass-bois will want to keep looking

-The Dynaquattro seems to need more power

Binary Dynaquattro Review



Binary Dynaquattro Featured Image
Full Review: HERE
Binary Dynaquattro Review Pic (70).JPG

Binary Dynaquattro Review

Intro

Today’s review and feature is covering one of Binary Acoustic‘s latest iems, the Binary Dynaquattro ($259). No doubt the Dynaquattro is a very ambitious offering being that Binary doesn’t have the longest list of iems under their belt. I only briefly checked out the Binary X-Gizaudio Chopin which involved the golden ears of Gizaudio in a collaborative effort, and a very successful effort as well. Unfortunately for myself I haven’t spent a whole lot of time with the Chopin, but by all accounts, it was very fortunate for Binary as most reviews and thoughts seemed to be more positive than anything else. Again, the Dynaquattro is actually a four dynamic driver earphone. Well, it’s “actually” a three dynamic driver earphone with the fourth being what’s known as a passive radiator which I will try to quickly explain later in the review. Anyways, I am a huge fan of dynamic drivers and so the thought of four DDs crammed inside a shell replaying my music library was enticing to say the very least. Of course, I’ve heard a number of two DD, or three DD earphones and I adore single DD sets. One of the oldest and yet still one of the best driver technologies within the Audioverse. Very curious how this one will sound.

Competition

The only other thing I could add to this intro would be to inform you all of something you already know. That is, the Dynaquattro is head deep into some tough territory when it comes to competition. The $200 to $300 price point is absolutely stacked. I could sit here and list them out but man some of my favorite sets of all time are jammed into this price point. I say this in every review, that competition is tough. This is true for any price point anymore as the market is cornered in every bracket. However, that sub $300 is a bit silly. You have many sets which really out-do their price. So, the Dynaquattro really does have some stiff competition and I am utterly curious to see how this set does. Okay friends, I think I’m ready to throw this set on the burn-in station for a few days (all day) and I’ll see you all in a little less than a week. Without further ado, the Binary Dynaquattro everyone…

Non-Affiliated Purchasing links:

HiFiGo
Aliexpress
Amazon US
Amazon JP

Disclaimer:

I received the Binary Dynaquattro from HiFiGo as a review sample and in exchange I will conduct a full review and feature at Mobileaudiophile.com. I have not received any payment or any other form of compensation for this review. This set is a review sample iem. HiFiGo has not requested to pre-read any review and doesn’t have any control over “what” or “when” anything gets published to mobileaudiophile.com. All thoughts within this review are my own, though please take note that I will always have my own biases. This is impossible to get around. I try to be as objective as my subjective self can be, but this is an opinion piece folks. Thank you to HiFiGo and thanks for reading.
BD


BD

Gear Used
EPZ TP50 / Aful SnowyNight / iBasso DX240 / Shanling M6 Ultra / Fiio Q15 / Ifi Go Blu / Simgot Dew4x


Gear used for testing

Ifi Go Blu

EPZ TP50

Simgot Dew4x

Aful SnowyNight

Fiio Q15

iBasso DX240 with Amp8 MK2

Shanling M6 Ultra


Full Review: HERE
BD



Packaging / Accessories

Unboxing

The Dynaquattro arrived at my home in a decent sized square box with a sleeve covering. The picture on the sleeve is basically a nod to the entire design theme of gears. Brown, tan, and gears. On the back of the sleeve, you’ll see the official Binary Acoustics graph for the Dynaquattro as well as some different specs. Nothing out of the ordinary there. Take off the sleeve and you are met with a black box with the name “Binary Acoustics” in the center. Open the box and the Dynaquattro will be presented in all its glory attached to the cable and tucked nicely into foam cut-outs. Very stylish. Anyways, next to the Dynaquattro is the plastic case which contains the eartips as well as the modular cable adapters. Lift off the foam layer and the hard pelican case is right underneath. That’s about it, nothing crazy but still a good unboxing in my opinion.

Dynaquattro Packaging
Dynaquattro Packaging
Dynaquattro Packaging
Dynaquattro Packaging



Eartips

BD Eartips

Binary provides six sets of eartips (SS, MM, LL), all identical. I read some report that they provide two different kinds but that is definitely not the case. The tips are also identical in form, feel, and rigidity to the KBear 07 tips. Just different colors. These tips are dark gray with an even darker stem. Like the 07’s, the tips provided are great. They have a very firm flange, semi-wide bore, fit decently deep and have that very stiff stem inside. They are really great tips. So, you get two pairs of each size and I think it’s great. I didn’t have the need to tip roll at all as I would’ve gone with KBear 07’s anyways. I did try out some other well-known tips, but they honestly didn’t change the sound all that much and also, I feel that Binary did a nice job of providing tips which actually sound perfect with the Dynaquattro. Not many brands do such things. Nice.



Carrying Case

BD Case

This is a cool feature to the packaging. Binary provides a very nice hard pelican case with a slick looking black strap. I love these cases. Perfect for throwing into a bag and not having to worry at all. They’re watertight, airtight, and they look fantastic. It’s a nice inclusion. I rarely use cases as most cases that come with sets are simply just add-ons without much thought put into it. Not Binary Acoustics. It’s obvious that they care and try to make a good impression which is something I greatly respect. Brands should try to wow us! Look at the competition folks! They should try to give as much as possible to make a solid and lasting impression. Binary should be thinking… “How do we get repeat customers?” or “We want to be known as a brand that goes above and beyond to make the customer happy”. There’re a few brands who do this… but not many. Binary has the right idea folks. I wouldn’t say they necessarily blew my mind but friends, they do a lot better job giving quality accessories than MOST brands. So, good job Binary Acoustics!



Cable

BD Cable

Same goes for the cable. It’s a nice one and I’m really into nice cables. There are some subtle gripes I have with it but these are minor complaints. Anyways, we don’t know much about the cable except for the important stuff. The cable included is a Silver-Plated OFC (Oxygen Free Copper) cable. It has almost a medium dark shade of sandy brown. I have zero idea how you explain it. Like dirty sand but with some dope looking brown aluminum fittings adorned on the cable to add a nice contrast. It’s a sweet looking cable friends. I like that it is somewhat fatty, certainly not thin. However, this cable is also kind of stiff. Eh, that’ll give you the wrong idea. It’s simply not a soft cable and doesn’t always wrap up perfectly. It’s a hair springy if you know what I mean. Not bad, but a hair out of control for wrapping up. Now, what I love about this cable is the fact that it has modular connectors. Binary added in both the 3.5 single ended and the 4.4 balanced modular jacks. Only this isn’t the kind you push in and hope it never falls off. This is actually a very nice system of push on and screw tight. Many brands are coming out with screw and lock systems, but Binary gives us a nice one. Very fast and easy to swap out connectors and best of all, they look cool. It’s a very nice cable folks.

BD Cable
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Build / Design / Internals / Fit

Build Quality

We’ve seen builds like this before. This build reminds me alot of many Letshuoer sets and their “HeyGears” builds. Sets like the Letshuoer DZ4, Cadenza 4, S15 etc. It’s the same feel and resin. It’s close anyways. So yes, the Dynaquattro is a plastic resin, 3D printed. Now, I’ll cover it in the internals section, but the three-way physical crossover is also molded as well into the design which is a very cool feature and is all part of the build too. At any rate, it’s a solid build. Not a rough point in these, no sharp corners or 90-degree angles. Just smooth everywhere I love the HeyGears sets and love the feel of that style of plastic. It isn’t cheap feeling. It feels like it’s something premium. At least as much as a plastic-resin set can feel premium. Beyond that, they also CNC machined the faceplate area out of aluminum as well. I measured the nozzles right at 6mm with my calipers and they are about medium in length, so they don’t reach too far into the ear. I only see one vent hole on this set and that is located inconspicuously on the faceplates. It’s a very nice build.

Dynaquattro Build Quality
Dynaquattro Build Quality
Dynaquattro Build Quality
Dynaquattro Build Quality
Dynaquattro Build Quality
Dynaquattro Build Quality

Design

Now is where we come to a possible fork in the road with the design. Looking at the Dynaquattro, I don’t know if it will be liked by everyone. I personally feel it’s a very cool looking design. I love the silver-in-black colorway matched with the sand-colored cable. It’s a cool look. So, the faceplates are made of silver aluminum with gears & cogs looking all stylish industrial, or steampunk, or whatever else you’d call them. I think it’s artistic enough, but I feel some people will not be fans. It’s a very bold look for a $259 set. Are you a fan? I suppose it could go either way. For me, I like the simplicity of the design matched with the tech housed inside and all that went into the crafting of the Dynaquattro. The gears & cogs theme kind of works, nice job Binary Acoustics.

Internals

Now we enter into the meat & potatoes of this review because Binary added in a bunch of techs as well as a bunch of drivers. They went with three dynamic drivers as well as one passive radiator. The lows are covered by a 10mm dual diaphragm & dual magnet structure with a titanium dome coated brainless silicone diaphragm with a 6mm paper cone passive diaphragm (passive radiator) as well. Now, the passive radiator is a very cool tech which has been around in full-sized speaker systems for quite some time but has recently been added to more mobile and personal listening systems like iems. A passive radiator basically is meant to help produce very low pitches with resonances using sound pressure. Passive radiators move back and forth in response to pressure fluctuations inside the closed cavity. Binary made sure to use a looser paper cone diaphragm as it moves back and forth easier creating deeper pitches and lower resonant frequencies. Passive radiators also help in reducing distortions as well. They certainly have their purpose, and the result seems positive with this set.

The other drivers

Binary also went with an 8mm DD with a cermet texturless diaphragm made out of what Binary calls “lightweight and exceptionally hard metal”. This dynamic driver covers the entirety of the midrange. The high frequencies are covered by a 6.8mm dynamic driver with a pure aluminum diaphragm. Now this is cool because this isn’t some diaphragm “coated” in aluminum but instead it is made entirely out of aluminum. This is said to produce crisp highs which are clean and detailed. I can’t say I disagree. I also mentioned before that Binary molded in the three-way physical crossover sections inside of the housing. Each separated section belongs to its own driver and each driver has its own tubing. Now that I’ve said all of that, Binary also adopted a new (as far as I know) “Klippel System” which is a computer and laser assisted system that measures vibrational data at a microscopic level to help with the final build of each speaker unit. To be 100% honest I don’t know everything about this method, but I’ve been learning. Also, it may bore you to death and I probably wouldn’t speak on it perfectly correct. One thing is clear, based on the actual sound coming from this set, it’s apparent that Binary is doing something right. The cohesion of drivers, lack of distortions and plain ole’ sound quality speaks highly of the R&D and work that Binary put into this $259 set.

Fit / Isolation

I feel that the Dynaquattro is on the larger side when it comes to iems. Maybe not massive, but big enough. Having said that I also don’t think that anyone should have an issue with fit. This set fits me like I was born with them there. Really a perfect seal, perfectly set in my ears. Really a great fit and very ergonomic… for me. The real question is how is the Dynaquattro going to fit you? I guess there’s only one way to find out. One thing is for certain, there’s no way I can answer that. This set may fit you horribly… I don’t know folks. It may fit you perfectly too. I would probably think it’s the latter as it’s a pretty universal shape. As far as isolation is concerned, the Dynaquattro actually passively isolates a good amount of sound. Definitely better than most. I’d say above average. Obviously, it won’t cancel out any noise, but the Dynaquattro will attenuate some sound for sure.


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Drivability / Pairings

The Binary Dynaquattro is rated with an impedance of 23 ohms as well as a sensitivity of 111 db/vrms. I can tell you that for certain this is a more difficult to drive set. I want to squash any confusion now because the Dynaquattro wants and yearns for power. Flat-out and hands-down. Feed it power! I’m not talking a million and ten watts here either. Just give this set some muscle. I use my daps on high gain and they each get up to or past 1 watt each. That’s said, I was very happy using any of my dongle dacs with a 4.4 connection and high gain enabled if they offer it. Basically, the more power the better for this set. Also, the Binary Dynaquattro seems to like either warm/neutral, neutral, or warm sources. Ya, that’s basically all of the sources, excluding very bright or cold sounding sources.

Mobile Listening

BD

On the go and mobile I listened to many different Bluetooth dsc/amps and dongle dacs. Folks, I listen all stinking day, just about every day. Whether I’m on the go in the market, working around my house or in my office, I can listen all day. Coincidentally, this is also how I get so many reviews out. However, I say this to get across that I’ve tried a bunch of different sources, comparing tonalities and what I’ve come up with is that the Dynaquattro has that perfect warm/neutral tonality that seems to mesh well with just about any source tonality. I guess you could say it “synergizes” with many different sources. I feel this is an excellent quality. Whether I used the neutral Qudelix 5k, the warm/neutral Ifi Go Blu, the neutral EPZ TP50, the neutral Moondrop Dawn 4.4, the Slightly warm/neutral Simgot Dew4x, the warm Roseselsa RS9039, the warm Fiio Q1 MK2, or about 12 others… It sounded great. I really feel that is an excellent thing. Not every set does so well. I do think there’s something to this warm/neutral area that it was tuned to which helps it to react fairly well with most devices. It isn’t skewed so far, any one way and is kinda stuck in the middle. At any rate, I found good synergy with many devices. By the way “synergy” is a made-up word which basically means that it sounds good to you. Lol, that’s about it.

Daps

The same held true for my daps. Friends, I really loved this set on each of my daps. They each have their own flavor and source tonal color. I used my Fiio Q15 quite a bit, which I have double-sided taped to my LG-V60 (basically a dap) which is closer to neutral but extremely dynamic and clean. Next is the iBasso DX240 which leans on the neutral side. But I mainly used my warmer sounding Shanling M6 Ultra. The pair seem to do very well and definitely my favorite of the bunch. I just feel that the M6 Ultra’s warm resolving sound and thicker note weight does add to the experience with the Dynaquattro. However, each device did replay this set nicely.

What do you need?

Again, if you can get a powerful dongle dac then you will probably be good to go. This set seems to take as much power as you can give it with these smaller source devices. It wants power, what can I say. It is not easy to drive folks. You won’t get the most out of it with weaker sources, plain and simple. However, give this little baddie some juice and she will shine.

BD
BD



Sound Impressions

**Note: I want to preface this section with a few things prior to getting into the sound portion of the review. First, I’ve already explained that power makes this set shine. Friends, I’m telling you that the difference between low and high gain on my Shanling M6 Ultra is pretty stark when the Dynaquattro is in my ears. In fact, the difference is even more substantial when I go low gain on my Fiio Q15 and ultra-high gain mode (1600 mw), and the Dynaquattro takes all of it and smiles brighter for it. Also, I listen mainly to flac or better files stored on my devices and I do so mainly use UAPP (USB Audio Player Pro) and at times Hiby Player as well as Poweramp.

What’s it sound like?

Now that I’ve covered all the “other stuff”, I feel it’s time to get into the heart of this review. That of course would be the sound portion of the review. So, the Dynaquattro is hard to drive, established that. That’s number one, feed this set some power, because it’s hungry. Now, as far as sound signature, the Dynaquattro is a slight V-shaped to U-shaped set with a midrange that isn’t recessed all that much. If I were to describe it as anything I’d say warm/neutral. That’s “neutral with a splash of warmth”. Neutral with some sub-bass girth! It’s clean lined, energetic and macro-dynamics are spilling out everywhere in a tightly wound and clean manner. It’s boisterous, rambunctious, but it has some control too, some structure, some density in the right places while still remaining agile and limber. This is a set that comes across crispy at the edges when called upon, yet not abrasive. It’s speedy in its transients for dynamic drivers and fairly well detailed with good separation of instruments and voices. I’d still call the Dynaquattro slightly musical over technical, but there’s a nice balance there. The timbre is wonderful. Dynaquattro has a very natural sound to it in my opinion, very realistic. Beyond those things, the cohesion between the drivers is as good as it gets. Binary Acoustics did a wonderful job melting the sound between the drivers.

Condensed Sound Between the 20’s

I always add in this section just to give the reader a quicker synopsis of my findings. So, I quickly run through each area of the mix and hope it’s helpful. After this you’ll find much longer and more exhaustive sections covering the sound.

Beginning with the low-end, the Dynaquattro has a very satisfying and tight bass section. This is a bass with a nicely kinetic feel and haptic quality that comes across as a boosted sub-bass which never seems to impede on any other area of the mix. The mid-bass has some good textured slam and weight yet never feeling heavy or too bulbous. It’s a clean bass. The midrange has some nice control throughout, decently detailed, smooth in body yet crisp at the edges. Like a nicely seared steak. Sorry for that. Anyways, I hear some nice lean-lush note body that comes across more realistic than anything. No real shout or glare, no sibilance or abrasiveness. It’s also not so pushed into the rear of the sound field that the vocals sound distant. Instead, they come across very well laid out. Definitely not vocal centric but great for a V-shaped set. The treble is sparkly, airy, with a light punch and decent extension into the upper treble. Nothing is really missing here, and Binary tuned the treble in such a way that I don’t hear any real splash or treble sheen. It has nice control. The soundstage is very nice, never restricted, with nice depth, nice width and good height. Imaging follows suit with nice layering of sounds. So, there’s the ultra-condensed version, now let’s get into the meat and potatoes folks.

Graph Dynaquattro
Graph courtesy of Practiphile, Thanks!

BD




Bass Region

The bass is pretty nicely emphasized with a fairly meaty thump when needed. It’s the type which makes its presence felt when it’s called upon and slips to the background when not. The low-end does not overly warm the rest of the frequency but does kick in pretty hard and fast when a track requires it. This is a solid bass folks. I mean, it’s very good. Very clean, well defined, deep enough for any track yet tight enough for any track too and it doesn’t muddy up the midrange waters. However, this also isn’t some atmospheric bass that decays any longer than it has too. Faster bass passages are handled relatively easily without any bass-blur happening or any blending down low. You have rounded notes with the Dynaquattro’s bass region, and you have good note body and note density. By the way, when I say “good”, I mean… realistic. To me that is good. Of course, there is about a 11-13 dB bass shelf and so I would definitely say there is some color to the sound, but nothing overt, or too colored. Just enough to give off a natural vibe to the other regions.

Basshead?

Also, it isn’t a basshead set at all. It bangs, no doubt about that, but not basshead (in my mind). Yes, there’s a pretty large 11-13 dB shelf, but I really don’t hear that enormous thundering boom out of this set. I also don’t get any real detrimental bleed into the midrange. Friends, it is a very well-tuned bass. In fact, the Dynaquattro does a marvelous job of balancing both precision and agility with depth, deepness and boom. Attack is on the snappy side rather than the soft side leaving clean cut note edges that aren’t even hinting at coming across pillowy. It’s a talented bass section for $259. There’s no other good way to say it. Binary did a nice job.

Sub-bass

The sub-bass is supposed to be assisted by the passive radiator housed within by adding some low pitch and deep resonances. I would say that this is partially true. The Dynaquattro does get pretty deep and guttural depending on the track. Listening to “Groove” by Ray Wylie Hubbard, or “Groove” by Ashley Monroe, either Groove’ll do. Anyways, listening to the Ray Wylie Hubbard jam it’s ever apparent that the Dynaquattro can reach a very resonant and deep bass guitar drone with a tight rumble. I feel the sub-bass has just enough dense mass to give good haptic feedback. Now, I still consider the sublevels of the low-end to be just above moderate as it is not the type which muddies the mid-bass. In fact, for me the sub-bass is tuned in such a way that it comes across distinct from the mid-bass. Well, as much as a set can anyways. Obviously there will always be tracks which make a liar out of me. Generally speaking, this sub-bass is clean, tightly-wound, with some solidity and it gives off textured vibratory goodness, yet it won’t be a detriment to any other frequencies. I really enjoy this area.

Mid-bass

Looking at the mid-bass, it is slightly less boosted than the sub-bass, but it still packs a nice punch. I hear a well detailed and well-defined mid-bass which offers a more precise bass response as it isn’t muddy at all. However, it’s also very stoic in its presence with good low-end vibrance. This isn’t a soft or dull bass region. There’s some energy at play with this mid-bass. It makes its presence felt when called upon and can do so at far quicker speeds then I would’ve thought. To do so the mid-bass has to be relatively nimble with transients that come and go with efficiency and less collateral lagging harmonics. Again, some tracks will make me a liar but for the most part the Dynaquattro’s mid-bass can bang and has good impact in a tight fashion. It can be pretty booming too, of course not to the extent that some sets which are boosted more. But the Dynaquattro can add some meaty bass drops, kick drums, bass guitar, double bass all the while keeping tight reigns on the note outlines. “Billy Jean” by Weezer (Michael Jackson cover) begins with some booming kick drums. Coincidentally, the Dynaquattro also booms on this song. However, prior to those successive meaty hollow booms you’ll hear a vibrant and wet initial attack. It sounds very nice to my ears. “Can’t Make Up My Mind” by CMAT is another track which hits very well and is very satisfying. Meanwhile, the rest of the mix is very well separated and distinct from the bassline. I’m impressed folks, the bass on the Dynaquattro is one of my favorite pieces to this puzzle.

Downsides to the Bass Region

Looking at the issues down low, there aren’t many if I’m being honest. More like subjective gripes that “some” people “may” have. I suppose bassheads won’t be completely impressed. I mean, it can hit hard, and it goes deep with good guttural extension and nice haptic recognition, but it isn’t basshead. Not to me anyways. I grew up with basshead. My ears should be itching with a basshead set. I feel a true basshead iem should cause me to hear the other frequencies a lot worse and with the Dynaquattro, the other frequencies are crystal clear. Also, some people love the lagging harmonics of an atmospheric bass. I don’t feel the Dynaquattro is necessarily that all the time. It’s tighter and more taught in its attack through release. Decay is fairly quick and altogether the Dynaquattro is very succinct and efficient in this region yet also booming and extended enough to be fun. It’s a well-tuned bass region for me.


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Midrange

The mids are not nearly as recessed or as clouded as I was expecting. In fact, the midrange is extremely well done in my opinion. Very clean and well detailed wi some of the most natural timbre that the $250 range can offer. It’s really a special sound in this area. Instruments and vocals come through in a hi-res quality. That said, the Dynaquattro doesn’t skimp on note weight, at all. Usually, I’d expect cleanliness like this to be connected to thinner note body. But in the case of the Dynaquattro’s midrange it comes across lean-lush and dense enough to give off rounded notes with some depth of field. What’s great is that on top of that lean-lush style richness is also a good amount of air and openness. This presents a wider sounding and more open stage, or sound field. I really enjoy this midrange. Another bonus is that along with the natural & organically portrayed midrange timbre, I also don’t hear any shout… whatsoever. The pinna gain is a small and long glide to its peak around 9-11 dbs and it simply doesn’t come across glaring at all. Nor does it come across sibilant. The mids are just well behaved, they’re clean, precise, nicely detailed, nicely separated, good note weight, and it’s just as musical as it is technically inclined. Just well done.

Micro/Macro Dynamics

The midrange isn’t as technically gifted as some sets. I don’t want anyone getting the wrong impression, but I do hear above average micro-details. The Dynaquattro is able to pronounce subtle dynamic shifts nicely, as micro-dynamics are well able to give it some clarity, and even some punch to certain tracks. The point is that while the Dynaquattro is musical at heart, it also doesn’t lose sight of the subtleties. I found myself listening more for details than I would’ve thought. I take notes, a lot of notes, and those notes described good illumination of many intricate little details that I heard. That 8mm midrange DD is putting in good work fellas and females. However, on the flip-side, the Dynaquattro also carries good macro-dynamics. This is a midrange which is energetic, not lazy, not dull, but just as sprightly as it is full which comes across as dynamism to me. Not plangent, strident or harsh, but controlled, manicured, yet boisterous enough to add a little bit of fun to the sound.

Lower-midrange

The low-mids are where the bulk of male voices reside and listening with the Binary Dynaquattro I’ve been impressed at how rich men’s voices can sound while not feeling bogged down by bass intrusion. Yes, there is some bass bleed-over into this region, but it only seems to be a help. Just enough to offer some warmth to go with the precision. Some mass to go with the taught notes. Bodied, but defined. Bodied, but transient snappy. It’s usually the lower midrange that I complain about most, but the low-mids on the Dynaquattro are skirting around that for me. Instruments are more concise, distinct, silvery and even resounding when they need to be. The Dynaquattro replays the low-mids in such a way that a man sounds… like a MAN. Robust, full, yet crisp at the edges when they need to be. Chris Stapleton sings his heart out in “Tennessee Whiskey” and the Dynaquattro seems to know this because it replayed every modulation in Chris’s voice so well. Every up and down volume shift that comes with Chris’s vocals sounds natural and clean. Nothing abrasive or shouty, such as with other sets in the price point. Even higher pitched male voices like John Vincent III in “Highway Woman” sounds nicely highlighted, smooth, and very melodic against some well separated instruments.

Upper-Midrange

The upper midrange contributes to the dynamic quality of the Dynaquattro’s sound quite a lot. The nice thing is that dynamic quality and presence doesn’t invoke any kind of shoutiness. Like I said, the pinna rise is not to the point of ear gouging madness. The upper mids are shimmery without the glare and that’s a tough thing to tune. I would assume. Binary did a very nice job in crafting a set that offers females vocals which are both clean and sparkly, as well as nicely bodied and rich. Not every set can pull this off folks. The cohesion between drivers and frequency divisions helps tremendously as this area of the mix ties into the surrounding frequencies very well. Females have that effervescent and feathery sweet sound, as well as that operatic tunefulness that is fantastic for big belting ballads. You never get into the harsh territory as it’s always euphoniously honeyed in its timbre. Females are forward yet not obnoxiously so. Just very well-tuned and nicely balanced for $259.

Upper-mids cont…

Tracks like “Stampede” by Jess Williamson shows off this dulcet type of euphonic timbre. Her voice isn’t ultra soft and she can have a slightly abrasive quality to her voice, but the Dynaquattro never embellishes this quality, keeping good note contour, smooth like glass, and not edgy. The surrounding Melody is nicely accented in the background as well. Another track “Skeletons” by Suzannah, is so melodic folks. This melody, as well as her voice, found a perfect home with this set for me. Her voice is this mix of head voice and chest voice and more breathy than anything which hits my ear in a very pleasing manner. To add to that, the instrumentation which follows that voice is so clean and etched out behind her and around her. All of it is well separated, layered, euphonic. The deep bass, the softer tones, her breathiness, is all replayed with great timbre in my opinion.

Downsides to the Midrange

There’re downsides to anything. I realize I basically just showered the Dynaquattro in praise. I do get caught up in the moment. However, I mean every word folks. Anyways, yes, I praised it quite a lot but also, it isn’t the best midrange I’ve heard at or around the price point. Some sets are literally tuned to emphasize and highlight vocals & instruments in this region. For instance, to me the Dynaquattro isn’t to the level of the Xenns Mangird Tea “OG” for vocals. However, there is so much that the Dynaquattro does… “along with good vocals”… like great dynamics, presence, clarity, musicality too. Take all of that and roll it into a ball… It’s a damn fine ball? I don’t know where I was going with that (Lol)… but the sentiment remains. The midrange is a fine one and one which I am quite fond of. That said, I’m sure some folks want an even better detailed midrange. Some folks will want an even drier, airier, thinner and more agile sound. It takes all kinds in this hobby. Furthermore, without question you’ll get people who would much rather have a more heavy, warmer, and more thick sound in the midrange. They want that moisted and buttery sound over the midrange of the Dynaquattro.


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Treble Region

The treble comes across fairly smooth yet can gain some crispness when called upon, and there is some brightness to offset the bass region. It has good resolution, good punch at times too, but not so elevated that it forces the focus away from any other area, in my mind anyways. I feel it carries just enough of an emphasis actually. Though others (treble-bois) may want even more twinkle and sparkle to the sound. That said, the treble does carry some good energy, enough to shine a light on different frequencies, enough to add some nice resolution, enough to provide an overall lift to the tonal color of this earphone, and enough of a lift to enhance details and create a sense of air without calling the treble “airy”. Does that make sense?

Does its job faithfully

Still, I also wouldn’t call it “notably brilliant”, or a bright sounding earphone. The Dynaquattro is not that. The treble is just added flavor in an otherwise warm/neutral soup. In fact, you might even call this moderately safe. Not the most punchy and accentuated treble on planet earth, but a good overall job in conjunction with the midrange. Again, it’s smoother to me with hints of crunch and crispness sounding reasonably well defined and with very good clarity. The treble is not the type that forces attention to it, but it does its job faithfully. Friends, look, this isn’t some treble monster EST driver that was born to sizzle out every contour to every treble note with perfect accuracy and bite. I sometimes think we expect a bit too much. So, is the treble a weakness? Eh, depends on who you ask, I guess. Two people standing right next to each other may have completely different opinions. I actually thoroughly enjoy it. Let’s put it this way, for an all-aluminum dynamic driver (not an EST) that’s easily able to carry some sparkle with an added sense of brilliance to the sound all the while never encroaching on the sharpness and harshness of a screaming treble… I’d say it’s well tuned and fits the overall tuning scheme. Now, can this treble compete with the Piezo-laden treble found in the Simgot Sm4? The answer is probably no for most hobbyists who enjoy good and biting treble. But also… it was never meant to. The treble is a supporting cast member folks and in that vein it’s actually quite nice. Never harsh, never sibilant and never splashy.

Extension

That all said, I definitely don’t consider the treble region as dialed back. No sir. Moderately safe means it’s almost safe. Almost there. What I actually mean is that it doesn’t seek to bring my ears to that point of uncomfortable sharpness. However, the treble does carry nice extension into the upper air portions of the treble region. There’s some outside sparkle happening, and I hear it in the secondary harmonics of cymbals etc. which do not come across splashy to my ears and do have good fundamental body to cymbal strikes as well. The extension here adds an element of openness to the sound which can easily be heard. I wouldn’t call it the “most open” but there is a quality of airiness which does in turn come across as decent to good separation, details, and even good imaging.

Examples

Another aspect of the Dynaquattro’s treble region is the ability and speed of the drivers themselves as well as good note structure and control for this 6.8 mm DD. I would say the Dynaquattro has reasonably quick drivers up top which can take on slightly more difficult treble passages pretty easily for dynamic drivers. Take for instance Billy Strings breakneck speed banjo in “Secrets” (and any other of his tracks). The Dynaquattro handles this track without having any trouble. Each note comes across as having decent body, there’s some treble punch and dynamism. It isn’t a weak and dull treble, let’s just put it that way. Lindsay Stirling in “Eye of the Untold Her” off her Duality album is another track which takes all of the treble activity (and there’s a lot) and handles it very well. It’s sparkly, there’s enough luminance and controlled brightness and every note is handled well without becoming blended. There’s separation there. At any rate, the treble does well for what it is, and it fits very cohesively with the rest of the spectrum.

I figured most people would appreciate this type of treble tuning because it sort-of plays the safe card but takes that brilliance right to the point of breaking out of that safe zone yet without crossing into fatigue. I think Binary did a wonderful job of tuning this region and I do believe that most hobbyists will enjoy it. Well, maybe not treble heads or even moderate treble junkies.

Downsides to the Treble Region

Again, treble heads will not be impressed here. I don’t think anyone would’ve expected treble heads to be overly impressed but also nothing short of forced resolution and EST drivers will impress many of them. Beyond that, some want an even darker treble, more rolled-off, smoother, and far less bright. I feel the Dynaquattro’s treble is right in the middle. Some treble-bois may even want more crunch, more of a bodied and crispy contour with a more hi-res sound up top.

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Technicalities

Soundstage

This is an area that impressed me quite a lot. I wouldn’t say the Dynaquattro has the grandest stage in its price point, but perceivably it’s pretty wide with above average width, very tall height too as well as good depth. The soundstage just sounds slightly expanded, open, airier than it isn’t as well. Nothing so grandiose that you’ll mistake it for a stadium or anything. Like I always say, these are iems (in-ear monitors) after all. The best you can hope for is that the sound doesn’t come across congested or blended, it doesn’t feel cramped and that there is at least some depth to the sound, because that isn’t always a given. Thankfully with the Dynaquattro there isn’t any congestion and there is plenty of depth to the sound.

Separation / Imaging

Separation is better than average. In fact, that was a bad representation of the instrument separation. No, it’s actually good. The Dynaquattro has clean lines in between notes. It isn’t some tightly packed and soft timbre. No sir, the Dynaquattro has glass lined edges (for the most part) which create the illusion of space. Transients are quicker than they aren’t with a taught and well-structured note body. Yes, each note has some richness to them, but it doesn’t seem to squeeze the space between elements within the stage. On top of that it has good control with clean dynamics that aren’t all over the place. Binary did a good job. Imaging follows suit with easy to define placement of instruments and vocalists. Left to right and front to back there is a pretty precise look at the sound field. Of course there are some sets which do it a hair better, but those sets don’t generally have the same musicality either.

Detail Retrieval

Detail retrieval is definitely above average. We are getting into the weeds a bit when we say such things. Mainly because nobody on earth can explain what average details sound like. In my case, I just take all that I’ve ever heard in that price range and gather an idea or an opinion. Key word is “opinion”. I’d say above average, even easily above average. The Dynaquattro is good folks. I do need to state that the Dynaquattro really only shows these good traits with some good power added to the mix. To an extent anyways. The sound has good clarity and resolution with a sort of precision to the sound. I’d still say it is musical over technical, but the detail retrieval is quite good for what the Dynaquattro is and for how it was tuned. I really feel this set is a special one friends.


BD

BD Comparisons
Letshuoer Cadenza 4 / Binary Dynaquattro


Comparisons

Letshuoer Cadenza 4 ($249)

BD Cadenza

Today I will start my comparison section with the Letshuoer Cadenza 4 (Cadenza 4 Review). The C4 (as I’ll call it for review purposes) is a wonderfully tuned iem that I praised all over the place. It may or may not suit everyone’s taste, but it definitely suited mine. The C4 is a 1DD and 3BA consisting of a 10mm dual-chambered beryllium coated dynamic driver and three balanced armature drivers made from either Sonion or Knowles. Letshuoer pulled all stops on this one and decked it out to the nines. It’s a gorgeously plain looking iem and loaded with accessories. Really a great buy for the price.

Differences

To begin, the price is very close between the two as the Dynaquattro is about $10 more at an MSRP of $259 to the C4’s $249 (on sale for $199 right now). The build is very similar as they both have that HeyGears style resin. Both really well built, I love the feel of them both and both are extremely comfortable. The Dynaquattro and the C4 are both accessorized very well but the Dynaquattro cable does trump the C4’s by a small degree (my opinion). The Dynaquattro is slightly larger in size and slightly heavier on the ear, but both are relatively lightweight earphones. Of course, the Dynaquattro has a total of three drivers and a passive radiator (is that a driver… not really) while the C4 has a total four. Both are very good buys at the price, and both contend for your hobbyist dollar very well.

Sound Differences

To begin, the Dynaquattro comes across a faint bit warmer to my ears and has better, or more natural sounding timbre. The C4 BA’s simply don’t have the body that the Dynaquattro DDs provide as well. So, note weight and more authentic timbre for the Dynaquattro. The bass region runs much deeper on the Dynaquattro as well, with a bigger slam, fuller and just as defined. The midrange is fuller, more forward and more natural on the Dynaquattro whereas the C4 has slightly better resolution with better detail retrieval. The treble of the C4 is airier, brighter and has better note bite and control up top along with just as good extension. Again, I still say the Dynaquattro has better treble timbre with more realistic sounding instruments. Technically the Dynaquattro has the C4 beat but both are very good for what they are. Anyways, the Dynaquattro does have the slightest bit better detail retrieval. Better defined, better separation and imaging goes to the Dynaquattro in my opinion. I also feel the stage is deeper with the Dynaquattro which helps to have better layering. These are subtle differences, but differences just the same. Between the two the Dynaquattro is just as musical, more fun and has a more expressive macro-dynamic presentation.

Final thoughts on this comparison

Okay, this is a tough one, but the Dynaquattro is the better set in my eyes and for my taste. You may feel exactly opposed to that and I get it. I just feel the overall musicality, bass quality, techs, and timbre outweigh any of the good points concerning the C4. Both are very well done iems, but for my money, it’s the Dynaquattro all the way.

graph-2-14-1-1.png
Graph courtesy of Practiphile, Thanks!

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Is it worth the asking price?

The big question, is the Binary Dynaquattro worth the $259 that Binary is asking? I really don’t like answering this question. Of course, I’m also the one asking the question, so I guess the fault is all my own. However, I’m game and if it even slightly helps then it’s a good thing. So, the Dynaquattro is without question worth every penny of that $259. If you look across the field of iems in the $250 to $300 price point I think you’d be hard pressed to find something that is flat-out better. There may be sets tailored to your particular listening style better, but flat-out more talented in as many areas, within that particular price point… that may be hard to find.

Subjective worth

I’m also not saying the Dynaquattro is the best in that range either. I’m simply saying it’s worthy of your dollar and at least looking into. For me, absolutely! I don’t hide my subjectivity folks. This is an opinion piece. I am giving you my opinion and that opinion is based on a lot of iems being stuffed into my ears over the years. I haven’t heard em’ all, and I don’t claim to be the last word in audio, and I would never say I’m a “good reviewer” either. But I do give you my absolute most honest feeling friends. I don’t sugar coat, embellish (too badly), and I don’t review what I don’t like or that at least some segment of the listening population wouldn’t like. I won’t waste my time on that. So just seeing my review should tell you that I feel it’s worthy of consideration. Of course, just because I like a set doesn’t mean it’s worth the asking price. I like a lot of things that I feel are severely overpriced. Especially in this hobby where people pay in the thousands for incremental upgrades over $150 sets. Think about that. Alot is overpriced. Still, whether the Dynaquattro is worth the large amount ($259) that Binary is asking for you to own it is the question today. Again, yes. Yes, the Dynaquattro is a worthy set to pay $259 US for.

The Why

Just re-read this whole review. Just kidding, I’d never subject anyone to more of my blabbering. For real though, the Dynaquattro is accessorized very well with a fun unboxing. The modular cable is a great one with the screw on adapters, the pelican style case is awesome too. This set is built as good as resin can be built. These HeyGears (I don’t know if HeyGears actually built this set, looks like it though) style resin sets are the furthest thing from cheap feeling but are instead very durable, structurally sound and the Dynaquattro is about as ergonomically friendly as a set gets with four DD’s crammed inside. The use of space is fantastic by Binary. The design may turn some off, but I love it. It’s simple and well laid-out gears and cogs which adorn the silver all-aluminum faceplates contrasted by the black backdrop along with the slightly transparent housing is so cool. I love simplicity and originality.

That sound…

Of course it’s the sound which really ups the ante. The Dynaquattro has a very well-balanced sound that is equal parts musical and technical. It has a great warm/neutral timbre with my favorite “lean-lush” note weight. Tight transients, good density. The bass hits deep, fast, hard, with good impact and speed. The midrange is great for vocals & instruments sitting slightly forward with some of the best timbre you’ll hear (my opinion). The mids are detailed, clean as a whistle and open sounding. The treble is airy sounding and open, sparkly, and detailed without ever crossing the line into fatigue. Soundstage feels wide and deep with a more holographic presentation. It just does it all and it does it all well as a great all-rounder type set that suits a ton of genres. So yeah, $259 is a great price if you can afford it.


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Ratings (0-10)

Note: all ratings are based upon my subjective judgment. These ratings are garnered against either similarly priced sets or with similar driver implementations or styles with the unique parameters of my choosing. In the case of the Binary Dynaquattro ratings below, that would be $200-$300 iems in any driver configuration. Please remember that “ratings” don’t tell the whole story. This leaves out nuance and a number of other qualities and variables which make an iem what it is. A “5-6” is roughly average and please take into consideration the “lot” of iems these ratings are gathered against. $200-$300 US is an enormous scope of iems that is extremely competitive, and so seeing a rating above a “9.0” or better should mean something very special. My ratings are never the same and each set of ratings tells a different story. Each time you read one of my ratings will be unique to that review. Basically, I create a Rating that makes sense to me.

Aesthetic

Build Quality: 8.9 Built very well, all resin.

Look: 8.9 Clean, simple, original, bold.

Fit/Comfort: 9.8 Fit and comfort is great for me.

Accessories: 9.5 Very well accessorized.

Overall: 9.3🔥🔥


Sound Rating

Timbre: 9.8 Top of class timbre.

Bass: 9.3 Extended, fast, impactful, well-defined.

Midrange: 9.1 Note weight, open, clean, musical.

Treble: 8.9 Sparkly, airy, non-offensive.

Technicalities: 8.9 Soundstage, Imaging, details good for DD’s.

Musicality: 9.7 Musical thru & thru.

Overall: 9.3🔥🔥🔥

Ratings Summary:

The Dynaquattro is rated against any and all iems from $200 to $300. That’s a big price gap when you consider just how many amazing sets are crammed between those two amounts. I have many on hand and have tried many but I haven’t heard them all and so you have to take that into consideration. Friends, I haven’t given out many “9.3” overall sound ratings. Of course, every rating is different and tailored to that particular review. But still, a “9.3” is very high. I happen to really enjoy this set and possibly the honeymoon phase is still active in my psyche, but I feel every rating is legit and my honest feelings. Note that there are many sets which rank higher to me individual categories. For instance, I gave the Dynaquattro a “9.1” in “Midrange”, which seems high. That said, there are roughly about 8 sets ranked higher. So, a bit of perspective. Also, ratings are a joke anyways. Please don’t ever buy anything off of anyone’s “ratings”. As if there’s some magical system that quantifies how “good” an earphone or audio device is. Ratings are compiled by people. Flawed humans. Also, by what metric is each rating garnered? There are a million and two variables notwithstanding that in a year those ratings should be rendered null & void. Okay, I’ve said my piece, forging ahead now.

Explain Yourself!

Okay, there’s a couple ratings which may be questionable here. I personally don’t feel they are but I’m not you. First is the “Timbre” rating. I must feel ridiculously high on the timbre if I gave this set a “9.8”. That’s about as high a rating as they go for me. Still, I know so many who consider a warmer sound to be more correct tonally. Fair enough. This is another place where we get into the tall grass a little bit and personal opinions and subjective thoughts will definitely skew one way or another. So, I get it if you don’t feel this is right. Also, the “Musicality” rating. I gave the Dynaquattro a very high rating of “9.7”. Now, I know for a fact that people will disagree with this. Again, personal opinion folks. What is musical? What sound is the most musical? Who declares this? So, just take these ratings as grains of salt. Laugh at them, make fun of them, call me ridiculous, whatever. I feel these ratings are spot-on from what I’ve heard and from my perspective and I feel very good about them. I could go a point or two either way depending on the day and my mood, but right now… where I’m sitting…they are spot-on.



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Conclusion

To conclude my full written review of the Binary Dynaquattro, I have to thank the HiFiGostore and the good people with whom I deal with. I cannot say enough good words about the contact who helps me and provided this set for me. Truly a class act. Never have I been asked to say anything glowing, skew my thoughts or anything. So, I thank HiFiGo very much. Also, check the HiFiGo link as their selection is amazing and their shipping is fantastic. I always receive HiFiGo sets in a timely fashion from across the world.

Thank you!

I also have to thank you for actually taking the time to read my thoughts. For one, it’s nice to know my thoughts are actually helping you to make a decision. I love hearing that I played a part in helping you to find joy in this hobby. That is so very fulfilling and cool to hear. Also, mobileaudiophile.com thanks you. We rely on you guys and gals to click the link and spend some time over here. It really is the most important to us as Google rewards for odd reasons and one of those reasons is clicks and time spent. So, thank you.

Other perspectives

Also, really quick, please check out other perspectives and thoughts concerning the Binary Dynaquattro. We are all different, each one of us. Every last one of us has our own likes and dislikes, we may have different gear, we probably have different music libraries, and we haven’t all been down the same road in audio. No two of us are the same. I see it every day in this hobby. One person feels one way while the guy in the comments feel completely opposed to them. It’s a constant. This hobby is very subjective. Maybe the most subjective of all hobbies. So please listen to, watch, or read other thoughts about the Binary Dynaquattro. You’ll be better off for it. Well, I think that’s all I got friends. Please take good care, each and every one of you. Stay as safe as you possibly can, and always… God Bless!

BD
Last edited:
apagumila
apagumila
Great review! I just wanted to ask, what connection did you use for the Qudelix 5K? Will the 3.5mm connection be enough?
Ceeluh7
Ceeluh7
Hey thank you! So for the Qudelix 5k I simply swapped cables to a 2.5 balanced most of the time, but I also listened with a 3.5 single ended connection as well. I think 3.5 is enough to squeeze good sound out of this set with a Qudelix 5k. However, the Dynaquattro loves juice and so the more the merrier. Still, I didn't mind the 3.5 connection listening with the Q5k & the Dynaquattro.

Sonic Sleuth

500+ Head-Fier
Binary Acoustics DynaQuattro Review : Cohesiveness and Timbre with Dynamic Drivers
Pros: Deep, impactful sub-bass
Warm, natural tone and timbre
Perfectly balanced mid-range. Not too forward or recessed.
Excellent instrument separation and layering
Comfortable fit with good passive isolation
Cons: Treble lacks sparkle and air
Requires more power to drive optimally
Stock cable retains a lot of memory
Preface:

I would like to thank HiFiGo for sending this unit as part of the review tour.

You can purchase DynaQuattro at the following link (not an affiliate link):
https://hifigo.com/products/binary-dynaquattro

Also, I’m not a seasoned reviewer or a seasoned audiophile, so whatever I say is purely my observations and your results may vary.

I’m not the one to usually focus on specifications and numbers. I focus more on how happy I am with the equipment’s sound and that’s it.

Disclaimer: All impressions and opinions in this review are my own. I have not been paid or compensated by Binary Acoustics or any other entity for this review. My assessment is based solely on my personal experience with the product.

Sources used:
  • xDuoo XD05 Pro (AKM / Rohm) (w/ SS3602 OpAmps)
  • Dita Navigator
  • D16 Taipan /+ PB5 Osprey
  • Qudelix T-71
  • RME ADI-2 Pro FS R
  • iFi Go Pods

Introduction:

Binary Acoustics is a relatively newcomer to the audio scene. Their previous release, Gizaudio X Chopin, had a mixed response from the community. Presenting the DynaQuattro—an IEM that is definitely highly anticipated and promising to put a new high bar on what a multi-driver dynamic IEM can deliver.

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Design of the IEM and Cable:

The DynaQuattro comes with an elegant, modern look, showing off its metallic faceplate with recessed gear design in conjunction with a translucent resin body. This adds a lot of class to the IEM and gives it a kind of premium ruggedness. The IEMs come with a modular cable system, which allows for easy switching between 3.5 mm single-ended and 4.4 mm balanced terminations. The cable is quite robust and manageable by itself but could be slightly softer to give more flexibility to the body and feel. The cable however retains a lot of memory making it impossible to keep in place, nice and tucked when folded.

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It also comes with a pelican-type hard plastic case that ensures your IEMs will be very well protected while traveling.

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Fit and Comfort:

It's pretty amazing how the DynaQuattro has four dynamic drivers inside it, yet it is still comfortable in fit. The larger form factor may be a concern for few, but rest assured that the fit inside the ear is comfortable for long listening periods. The IEMs provide a great seal, offering extraordinary passive noise isolation, hence an increase in the listening experience while out and about as well.

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Sound:

Sub Bass:


The DynaQuattro's sub-bass performance is one of its stand-out features. Extension is really deep, giving a rumble that is as satisfying as it is impactful. This is very enjoyable with genres that center around sub-bass, such as EDM and hip-hop. The bass is so well-controlled that it doesn't bleed into the mid-bass or muddy up the general sound signature.

Mid Bass:

The mid-bass in this piece is just punchy and dynamic, adding a good layer of warmth to the sound. It has enough presence to make bass-heavy tracks enjoyable without overpowering the mids. The well-defined bass notes provide a good texture and separation that keeps the sound clean and engaging.

Midrange:

The midrange of the DynaQuattro is slightly recessed however I felt that it was perfect. Not too forward or recessed. It does remain clear and detailed with a natural tonality that presents vocals and instruments sounding really lifelike. The transparency within the mids makes sure that both male and female vocals are portrayed accurately, although the upper mids will tend to be a bit forward for some listeners, and sometimes they can portray some female vocals as slightly aggressive.

Treble:

Treble on the DynaQuattro is smooth and non-fatiguing. It doesn't have too much sparkle and air that some treble-heads may crave, but this makes it a great choice for those who are treble-sensitive. The treble extension is quite good here and is detailed enough to provide clarity without any hints of sibilance or harshness to bring out the nuances in the music.

Tone and Timbre:

The overall tone of the DynaQuattro is every so slightly warm and natural, typical for a properly tuned dynamic driver. The timbre is pretty realistic, making instruments sound legit. This makes DynaQuattro an IEM that's well-made for any genre.

Staging, Instrument Separation and Layering:

It is moderately wide with good spacing and positioning. This will not be the widest soundstage for its price but it does offer a very nice holographic experience, especially for gaming and some of those nicely produced immersive tracks. Instrument separation and layering is good. Each element in the mix is clearly audible without it sounding cluttered.

Detail Retrieval:

The detail retrieval on the DynaQuattro is impressive, capturing micro-details that enhance the overall listening experience. It may not reach the extent of the resolution possessed by high-end multi-BA or planar IEMs, but still—this dynamic setup holds up very well, making it a really strong contender inside this price bracket.

Comparisons:

DynaQuattro vs Juzear 61T:


At the price point of the Juzear 61T, we find the treble to be tuned a little more balanced; it does represent a slightly more coherent treble extension with better details. Overall, the bass in DynaQuattro is greater in quantity and also tight and controlled, hence providing the sound with more punch and energy overall. If you're looking for an IEM that sounds warm, natural, and also provides great weight at the low end, DynaQuattro is going to be for you. For those who are after a more neutral sound signature, with their treble having more finesse and sophistication to it, then the 61T may get the upper hand.

Please do note that I had a hard time listening to 61T for extended period of time due to the occlusion effect. The pressure inside the ears builds up fairly quickly and can become difficult to keep them on after 30mins or so. Wide bore tips were a better fit for 61T in my experience.

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DynaQuattro vs Dunu x GizAudio DaVinci:

The DaVinci is, indeed, a really good IEM both in its technicalities and timbre. It has a more open and wider soundstage and more accurate mid range than the DynaQuattro and better imaging. On the contrary, the DynaQuattro has more body and more engaging bass punches and the treble has better extension compared to the DaVinci. So, for the more bassy genres, the DaVinci will do better. I felt the bass quantity on the DaVinci was a little too much for my liking but DynaQuattro was just perfect.

The choice between the two will vastly depend on what kind of sound signature you prefer and what genre of music you would like to listen to with the headphone.

Conclusion:

The Binary Acoustics DynaQuattro in the IEM world offers such a strong setup, considering its unique, four-dynamic-driver setup, which delivers a warm, natural sound coupled with great bass performance. It aligns really well with my preferences as it does put together quite a compelling package of sound quality, build, and comfort.

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ILuvAudio
ILuvAudio
Lovely

atechreviews

100+ Head-Fier
Pros: Good fit and comfort
Deep, well-defined bass
Forward and detailed mid-range
Never sounds shouty, harsh or sibilant
Excellent timbre
Natural and organic male and female vocal presentation
Modular cable
Cons: While clear, the treble could benefit from more sparkle
Requires power to shine and needs an amp for optimal sound quality
The Binary Acoustics DynaQuattro is a standout addition to the world of in-ear monitors (IEMs). Featuring a unique configuration of three specialized dynamic drivers and one passive diaphragm.

Unboxing and Build Quality​


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Unboxing the Binary Acoustics DynaQuattro feels like opening a gift. The packaging is sleek and minimalistic, exuding sophistication. Inside, you'll find the IEMs, a high-purity OFC silver-plated cable with interchangeable plugs (3.5mm and 4.4mm), and various ear tips for a comfortable fit. The modular cable is a thoughtful touch, allowing you to switch easily between balanced and unbalanced connections.

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The IEMs themselves feature aluminum alloy CNC machined face panels, giving them a robust yet lightweight feel. The build quality is impeccable, with a design that looks premium and feels durable. Every detail in the construction speaks of quality and longevity. It even comes with a pelican case for added protection.

Technical Specifications​

  • Drivers: 10mm, 8mm, 6.8mm Dynamic Drivers + 6mm Passive Diaphragm
  • Impedance: 23Ω@1kHz
  • Sensitivity: 111dB/Vrms
  • Frequency Response: 20Hz-20kHz
  • THD+N: <1%@1kHz
  • Cable: High-Purity OFC Silver-Plated with Interchangeable Plugs (3.5mm and 4.4mm)

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Sound Quality​

Bass​

The DynaQuattro really shines when it comes to bass. The triple dynamic driver setup ensures that the low frequencies are not just heard but felt. The bass is deep, well-defined, and maintains clarity even at higher volumes. There’s no unwanted muddiness, making it a delight. It is not overly bassy and the bass is quite detailed and clear.

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Mid-Range​

The mid-range performance is where the DynaQuattro truly excels and shines. Vocals come through with a forward and intimate quality, bringing singers and instruments to life with stunning detail. The mid-range is lush and natural, perfect for genres that rely heavily on vocals and intricate instrumentation. The bass adds some note weight and thickness to the male vocals making it sound more natural and organic. The mid-range presentation of the DynaQuattro is sublime and is my favorite aspect of this IEM.

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Treble​

While the DynaQuattro offers a great overall sound signature, the treble could use a bit more airiness. The highs are clear and crisp, but they lack that extra sparkle that could have added another dimension to the soundstage. However, the treble is never harsh or sibilant, ensuring a fatigue-free listening experience even during long sessions.

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Power Requirements​

The DynaQuattro does require a bit of power to reach its full potential. While it can be driven by most portable devices, pairing it with a powerful amplifier or DAP/ dongle can significantly enhance its performance.

Comparisons​

Softears Volume​

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Compared to the Softears Volume, the DynaQuattro offers a more dynamic and engaging sound. The Volume while detailed, can sometimes feel lacking in bass impact. The DynaQuattro, on the other hand, provides a warmer and more musical presentation, making it more enjoyable for extended listening sessions.

Binary Chopin​

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The Binary Chopin, another model from Binary Acoustics, is tuned towards a Harman sound signature. It excels in detail retrieval and soundstage. However, the DynaQuattro surpasses it with superior bass impact and mid-range presence. The DynaQuattro offers better bass extension, higher quality bass, improved fit and comfort, a more forward and clear mid-range, and significantly enhanced detail retrieval compared to the Chopin.

DUNU DaVinci​

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When compared to the DUNU DaVinci, the DynaQuattro holds its ground remarkably well. The DaVinci is has more and better sounding bass and comes at a higher price point. The DynaQuattro offers better mid-range performance and a more balanced bass response. The DaVinci has more treble extension.

Juzear 61T​


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The Juzear 61T, with its hybrid driver configuration, provides a more airy and spacious treble. However, the DynaQuattro surpasses it in the bass mid-range department, offering a more forward and detailed mid-range, making vocals stand out more prominently compared to the mids of the 61T.

Conclusion​

The Binary Acoustics DynaQuattro is a stellar performer. Its combination of powerful bass, forward mid-range, and clear treble, along with its excellent build quality, makes it a compelling choice for anyone looking to upgrade their listening experience. While it does require a bit of power to reach its full potential, the effort is well worth it.

baskingshark

Headphoneus Supremus
Pros: Generously accessorized - even comes with a Pelican-like case and modular cable
Not uncomfortable despite larger shells
Balanced and musical U-shaped warm neutral profile
Very coherent in spite of packing 4 drivers
Classleading timbre
Quite open sounding without claustrophobia
Textured and punchy bass
Euphonic midrange
Extended treble without much sibilance
Cons: Hard to drive - amplification definitely required
Shells on the larger side
Borderline upper mids pinna gain region
Not the last word in micro-detailing and resolution
DISCLAIMER

I would like to thank HIFIGO for arranging this tour unit.

The Binary Acoustics Dynaquattro can be gotten here: https://hifigo.com/products/binary-dynaquattro or https://www.amazon.com/dp/B0D7MKNW89/binary+dynaquattro/ (no affiliate links).

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SPECIFICATIONS
  • Driver configuration: 3 x dynamic drivers (10 mm + 8 mm + 6.8 mm) and 1 x 6 mm passive radiator
  • Frequency response: 20 Hz - 20 kHz
  • Impedance: 23 Ω
  • Sensitivity: 111 dB/Vrms
  • Cable: 2-pin 0.78 mm; OFC silver-plated cable with 3.5 mm and 4.4 mm modular terminals
  • Tested at: $259.99 USD

ACCESSORIES

Other than the IEM, these are included:
- 3 pairs of tall nozzle silicone eartips (S/M/L)
- 3 pairs of short nozzle silicone eartips (S/M/L)
- Pelican-like carrying case
- Cable
- Modular plugs for 3.5 mm and 4.4 mm terminations

While no foam tips are included, the accessories are nevertheless premium, inclusive of a modular cable and a Pelican-like hard case.

We have 2 variants of silicone tips included. Both have a similar bore diameter, but one is a bit taller, while the other is stubbier.

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The stock cable is a 2-pin OFC silver-plated cable. This is well-braided and tangle-free, with a chin cinch. Microphonics are minimal. It has a modular terminal to fit a 3.5 mm (single-ended) and 4.4 mm (balanced) plugs, depending on your source preference. I like that the plugs are screwed on so as to prevent inadvertent dislodgement of the modules from a distal source for example, which may be catastrophic!


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We have a very practical Pelican-like hard case to protect the IEM and accessories, with the innards lined by foam.

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The rest of this review was done with the stock long bore silicone tips. No aftermarket accessories were used, so as not to add any confounders to the sound.


BUILD/COMFORT

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The Dynaquattro's externals are fashioned from aviation-grade CNC-machined aluminum alloy. This is then double anodized to provide a textured cog/gear-like motif on the faceplate. The inner aspect of the shells are 3D-printed with resin, including the acoustic chamber.

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To accommodate 4 drivers, it is not surprising that the shells lie on the larger side, and the sizing is just slightly larger than the Moondrop Variations. However, the Dynaquattro is still quite comfortable to wear, due to the non-excessive weight and smooth inner surfaces, with a concha protrusion.

The Dynaquattro has a very cleverly disguised vent in one of the faceplate's cog's, and this assists in relieving pressure. I did not encounter any driver flex on my pair, though isolation is bang average.


INTERNALS

The Dynaquattro packs 3 DDs + 1 passive radiator in a 3-way frequency crossover. These are arranged via a Klippel system that optimizes vibration resonances present in the disparate drivers, with independent sound guides for each driver.
  • The bass is settled by a 10 mm composite dual-diaphragm DD (titanium dome-coated silicone grainless diaphragm) paired with a 6 mm wool paper cone passive resonator driver.
  • The midrange is handled by an 8 mm cermet textureless DD with the diaphragm made of metal
  • The treble is taken care of by a 6.8 mm full aluminum DD.

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DRIVABILITY

I tested the Dynaquattro with the following sources:
- Apple dongle
- Cayin RU7
- Chord Mojo 2
- Fiio KA11 dongle
- Fiio KA17 dongle
- Khadas Tone Board -> Schiit Asgard 3 amp
- Onix Alpha XI1 dongle
- Questyle M15 DAC/AMP dongle
- Sony Walkman NW A-55 DAP (Walkman One WM1Z Plus v2 Mod)
- Sony Walkman NW A-55 DAP (Walkman One Neutral Mod)
- Sony Walkman NW WM1A DAP (Walkman One WM1Z Plus v2 Mod)
- Smartphone

This IEM is hard to drive. It has a sensitivity of 111 dB/Vrms which when converted to the conventional dB/mW, is actually 94.6 dB/mW, which is considered low for an IEM.

Amplification is recommended for headroom, and to tighten bass, improve dynamics and expand staging. Word of warning, the Dynaquattro won't sound good from a weak smartphone or Apple dongle.


SOUND & TECHNICALITIES

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Graph of the Binary Acoustics Dynaquattro via IEC711 coupler. The 8 kHz region is a coupler artefact peak.

Tonally, the Dynaquattro can be described as warm neutral, with a sub-bass boost.

The sub-bass descends to 20 Hz, but doesn't have a massive visceral rumble to shake the jaw. It is not for bassheads as such, but when amped well, the bass quality is exquisite. We hear a punchy and textured bass with fast lines and minimal mid-bass bleed.

The lower midrange is euphonic, with good note weight. Upper mids hit around 7ish dB ear gain, which translates to forward vocals, which is perhaps borderline for the anti-pinna gain gang. At low to moderate volumes, this region is not overcooked, but at louder volumes (Fletcher Munson curve), it may on rare occasions veer to shout.

The Dynaquattro has a relatively smooth treble that is sibilant resistant. This is quite a fine line to balance, to capture decent resolution yet without ending up as being too dark. Treble-sensitive folk wouldn't mind the treble tuning, but trebleheads might want to stay away though.

Considering this IEM has 4 drivers, the coherency is top-notch, unlike some other multi-driver sets, where you can hear the bass being too slow or boomy compared to the faster drivers handling the treble. It actually sounds like a single DD, with the 4 drivers all synergizing well as a cohesive whole.

This set is an outright king of timbre. It has one of the best timbral accuracy I've tried in a $200ish set, and vocals and acoustic instruments are very accurately portrayed. Users will have a field day with genres such as acoustic, classical and jazz.

The Dynaquattro is more of a musical IEM rather than an outright analytical and technical one. Having said that, it doesn't overly neglect technicalities and can be considered as above average in this area; however the Dynaquattro won't uproot any trees in micro-detailing and sheer resolution. Imaging is relatively accurate and soundstage is above average in width with good height and depth. It does not sound claustrophobic even with complex tracks, with solid instrument separation.


COMPARISONS

The Dynaquattro will be compared against other multi DD sets. Hybrids, single DDs, multi-BAs, and planars, which have their own pros and cons, are left out of the comparisons.


Campfire Trifecta

Yes, on paper this is not a very fair comparison, considering the 3 DD Trifecta costs $3.3K USD, which is more than 10X of the retail price of the Dynaquattro.

But surprisingly, the Dynaquattro puts up a strong fight against the so-called TOTL Trifecta, with the Trifecta having a bigger soundstage but having bad mid-bass bleed that obscures and veils the other frequency bands. The Trifecta also has some treble spikes leading to sibilance, and as an overall package, is very overpriced compared to what the Dynaquattro brings to the table for 10X less.


The 7Hz Five

The aptly named Five - with 5 dynamic drivers internally - is a deep V-shaped IEM. It has a greater mid-bass thump and more treble extension and air, though there is more sibilance than on the Dynaquattro.

The Five is better in technicalities, with improved micro-detailing and imaging, though soundstage is slightly less deep and tall on the Five.

The Five has a thinner note weight and a more metallic timbre, with a less lush lower midrange. Notably, the Five is much easier to drive, and does not need robust amplification, unlike the Dynaquattro.

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CONCLUSIONS

The Dynaquattro is a tonality adherent's best pal, sporting a warmish euphonic signature, with classleading timbral accuracy. It is very coherent - despite Binary Acoustics jamming 3 DDs and a passive radiator inside - and the Dynaquattro is a joy to use with vocal or acoustic instrument-focused genres.

Bass is punchy yet textured, without bleed obscuring the other frequency bands (cough cough looking at you, Campfire Trifecta). The dulcet midrange is sweet, but there is admittedly a 7 dB ear gain in the upper mids, which is just at the edge (this is calm in low to moderate volumes as per the Fletcher Munson curve, but may have rare shout at louder volumes). The accessories are quite princely, with decent comfort despite the larger shells.

The Dynaquattro is more of a musical champ than a technicalities or analytical standard-bearer, so even though it has an open-sounding stage and nice imaging, don't be expecting the last word in micro-details and sheer resolution. Of note, this IEM is also hard to drive, and amplification is necessary.

Think of the Dynaquattro as the quintessential dynamic driver transducer - it packs many DDs after all! - having the outstanding traits of a DD setup such as a musical soundscape, stellar timbre and terrific coherency. Listeners will be greeted by a mellifluous and pleasant soundscape that melds naturally into the ears, and this is a set to sit back and relax to.
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apagumila
apagumila
Great breakdown. Do you think the Fiio KA13 or Moondrop Dawn Pro is powerful enough to drive this?
baskingshark
baskingshark
Hi @apagumila I don't have the Moondrop dongle, but the KA13 is sufficient on desktop mode 4.4mm, not to worry.
B
Bob1960
Did the Cayin RU7 drive it well.

Jaytiss

500+ Head-Fier
Better in every way.
Pros: Fun Bassy iem
Nice Vocals but not overly energetic
Great clarity and detail at the price.
Balanced upper air with Bass, so right.
Treble is smooth and inoffensive, never bright or sibilant
Case is a nice value.
Fits a unique tuning in the Binary lineup, providing a more mature sound to the Chopin.
Soundstage is nice and open
Cable is one of my favorites!
Great Value with a high end sound for a reasonable price.
Cons: Upper air could be improved with a Tia, EST or PZT driver.
Price is expensive for some.
Fit of the shell might be a little large for some.
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This is a sample sent to me by Hifigo. I try not to let that influence how I write my reviews, but wanted to be honest and clean with how I got the set.

Let me share what music that I listen to:

Song Choice: Tidal list here:
I listen to a wide variety of music. I pick the songs because of various reasons. But I picture myself locked away like Andy Dufresne from Shawshank blasting music and shut off from the world. It’s a blissful image.
The Marriage of Figaro -The opera song from Shawshank Redemption, terrible recording but fun and gets me in the mood to listen to music.
O mio Babino caro -This is a modern less operatic version but a song with great female vocals.
Video Rigoletto - “La donna e mobile” Sung by one of the three Tenors, great song for high-performing male vocals. Pavarotti is the greatest classic singer maybe ever. Fight me!
Iron man - The sound at the beginning is hard to make sound great, great drums, and cymbals, and if done right it feels like an old-school band.
I Will Survive (1981 recording, I like her voice, and the old vocals, the drums, and various natural instruments really make this a favorite for me.
There is a light That never goes out - Smiths ( A classic, I just love it. It’s mellow, and I can tell a lot of the tuning if this song is done right.)
Jump (I like how the sound effects are in this!)
Star Child Someone recommended this song to me, and I like how funky it sounds and has nice vocals and a mix of music and things going on.
Dicke Titten Ramstein The beginning is amazing and the bass hits hard. Great song. I love rock and metal. The German language fascinates me
Master of Puppets: Very fast song. Helps me determine if the driver can keep up.


This is a newer version of my 10 favorite songs that also work for audiofile music.

This is a copy of a bunch of good audiofile music. Some are on my favorites, but all are great to test headphone tracks. (70+)

This is my favorite overall music. 300+ songs (needs to be edited a bit)


The CABLE!

Why am I talking about the cable so early. Because this cable is amazing. It fits the theme of the iem perfectly. It can be switched out very easily and has a screw lock to it. It’s a lot like the Dunu Lyre cable. All iem should have a system like this, it’s just so wonderful, and highly recommended.
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TIPS
The tips are fairly basic and easy. Nothing too impressive but acceptable. I like them.
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Bass (20-60 Sub Bass, 60-250 Hz Mid Bass)

The details of the bass is strong I feel like it has good quality, but I do find it to be slightly less impactful than what I might want out of an iem. The bass seems well-controlled and acceptable, almost tame. To my basshead ears it is fantastic and one of my favorite bassy sets and I am super excited about it.

Midrange (250 HZ to 800 HZ Low Mids, 600-200 Hz Mids, 2000-5000Hz Upper Mids)

The midrange of this set is fantastic and slightly energetic, but not overly so. I love how it has a dip at 4-6k and I have worn this iem for like 5 days straight, with fatigue.


Treble (5000- 10000 Trebble/Highs, 10000 ++ HZ Upper Trebble & Air)


The 5-6k region which is still fairly accurate on a 711 coupler is clean, and very clean at that. I really like this iem in that 5-6k region and helps my sense of enjoyment. I find this set to be less harsh in the upper treble. The upper air is strong in this set, but overall is a slight weakness in this set. It doesn’t have the extension that an EST set has, but is very nice.

Gaming

Gaming is great on this iem, as it has a nice tonal balance and is pretty relaxed. The stage isn’t too wide, but just right. Detail retrieval during fights is immaculate, and the imaging vertically and horizontally is fantastic. It has great imaging and a good sense of where I am.

Gaming is somewhat of a meme for ranking, but if a friend wanted a cozy iem to game with good bass and treble. This could be an easy win.

Shell -
The shell is pretty, and fits the steampunk vibe that I am getting from this iem. It’s excellent fitting and a much more premium feeling than the Gizaudio Chopin. Having said that, it is much larger as well. This could be better for some, or not as good for others depending on your fit needs. It for me is a very slightly larger shell, but it’s nice. I did have a minor issue measuring this iem, and sometimes getting a good seal on it as well. But overall it is excellent.
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Case- The case is beautiful and premium. It’s basically a Pelican case, it’s simple but the iem fits inside, and it’s a case. I like the transparent cover, but it’s probably not something that I’d use, yet I do appreciate a case of this quality. The only other time I’ve seen a case like this is with the Hisenior MEGA5EST which is double the price of this iem.

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Comparisons:
Vs Pilgrim
I find the Binary Accoustics to have better upper mids and I enjoy it a bit more. The Pilgrim is a bit bright for me, the Dynaquatro has a better shell, and it’s easier to cable swap. Having said that some like the penntaconn connector of the Pilgrim, but I don’t think it really adds value.

VS Dunu Davinci
This is a very tough competition. Both have similar graphs, but the Davinci wins in the upper air, but the Dynaquatro has better bass, more energetic upper mids, with the Davinci having better air. It’s close, incredibly so.

VS JUZEAR 61T

This is tough, both have similar tunes, but the Juzear is a little cheaper at $220. I like the Juzear 61T and think this is a close battle for those looking to save money. I do like the Dynaquatro better as the bass and upper mids are better. Having said that, they do complement each other and are both extremely enjoyable and very strong tunings. The richness and fun of the Dynaquatro wins out, but it’s close for me. The Juzear has some natural timbre and a strong contender for price, build, and sound.



VS Simgot EM10
I like the Simgot EM10 but it’s a Harmon, meaning that it has some minor issues that are fixed with the Dynaquatro. The air of the Dynaquatro and extension aren’t as good as the em10, but the upper mids and lower treble are better on the Dynaquatro.


Conclusion:

Graph:

AD_4nXe94xlpDuuPYEzCQ7TUGtOooDboYJi5r5U23wxYPnPQg2qqLAFfaVWAlQe6BH9ApXzbKmgE6Kyv1RKhEzu0q1XBHR_lyuXP3dv0LwAkbf2ZLCtKyqwXdJthFNFSq4kNK5IRMUvu95GVvGN0FjInZxkDTEQJ


Sound - Final Impressions

This is a very good Midfi option that has a tuning that I fully endorse. Obviously, our opinions are always different, but with many iems I would give hesitant recommendations or weary recommendations. I’ve reviewed a lot of iems and keep a spreadsheet or ranking list, and this I feel this iem is a solid pick with the few caveats that I’ve mentioned. It has a nice price, and good value proposition.

Recommended EQ: I use Peace APO to EQ on the PC. This EQ is done to my preference. I recently set up a preference curve on My Squig. So for at least iems, I can use my own graphs now. Please feel free to use the measurements as you want.. Jaytiss.squig.link
Overall this is an amazing iem that could easily be a game for most. The goal for me with an iem is to have an iem that doesn’t need EQ. This iem, does sound better to me with this eq, more neutral and less colored. This iem has very little adjustment in, save some in the upper mid region, the rest is incredibly close to my target, weirdly so. This iem does’t need EQ, but I could see people wanting some EQ with it.

Preamp: -2.1 dB
Filter 1: ON PK Fc 20 Hz Gain 0.7 dB Q 2.000
Filter 2: ON PK Fc 41 Hz Gain 0.8 dB Q 1.700
Filter 3: ON PK Fc 100 Hz Gain -0.8 dB Q 1.900
Filter 4: ON PK Fc 220 Hz Gain -0.9 dB Q 2.000
Filter 5: ON PK Fc 400 Hz Gain 0.2 dB Q 2.000
Filter 6: ON PK Fc 630 Hz Gain 1.2 dB Q 1.200
Filter 7: ON PK Fc 2000 Hz Gain 2.3 dB Q 2.000
Filter 8: ON PK Fc 3900 Hz Gain -2.2 dB Q 0.800
Filter 9: ON PK Fc 9300 Hz Gain -1.4 dB Q 1.600
Filter 10: ON PK Fc 12000 Hz Gain 2.9 dB Q 2.000







Gifting/who is it for: I think this is a nice hifi iem to gift to someone, it’s just a nice package that it is beautiful and unique. It’s a handsome shell, good-looking cable. The case is nice. It’s just a lovely set, and product. I have almost no issues with it and absolutely love it, I would fully recommend this product to friends new to the hobby, it has a cool theme, great packaging and is a sonic treasure at it’s price.


Pairing: I used a Quidelix 5k for mobile, my dongle Dac iBasso DC04 for my laptop, and my JDS lab Atom 2 with a SMSL 6d-s for my Desktop PC. I also tried the iem briefly on the Apple dongle as well. This iem had no issues being driven. Typically I only find overears to really have a hard time being driven and maybe some planar iems. (I am not a huge mmcx or planar fan.)

Summary-

If I went to a show and tried a ton of iems and someone said this was 300, I’d be kinda shocked and try to withhold excitement and buy it on the spot. I own a few expensive sets and am happy to pay big money for the best that I love so my opinion maybe a little slighted to midfi/higher priced iems.

If you are worried about the quality of the bass of the Davinci, this iem fixes that issue and is a basshead delight with having a great sonic sound. To me and my ears and preference, it’s one of my favorite iems, and the only iem that I’ve give a 100/100 score to that isn’t near 3000 dollars. It hits a lot of things for me, and I don’t just give a hesitant recommendation, but a full recommendation at its price. This may be the one to beat, it’s a treasure. We are living in a blessed time of iems, and to me this is just a special set. Again, I try to temper my excitement, when possible, but this is a great one for me. Thanks for reading!


I am also releasing a video on Youtube at the same time.

Ianbanz

New Head-Fier
BINARY ACOUSTICS DYNAQUATTRO
Pros: 1. Exceptional Sound Quality: The Dynaquattro’s Quad DD arrangement provides a full-range sound with clarity, warmth, and punchy bass, making it ideal for various music genres.

2. Versatile Cable: The high-quality Binary Acoustic Modular Cable with oxygen-free copper and a silver coating offers excellent sound transmission and flexibility with both 4.4mm and 3.5mm plugs.

3. Cool Rugged Case: The rugged carrying case ensures your IEMs are well-protected and stylish, making it perfect for travel and daily use.

4. Balanced Tonality: The warm and balanced sound profile, with a sub-bass lift and vivid upper treble, adds dimension and airiness to the listening experience.

5. Detailed Driver Implementation: The combination of three dynamic drivers and one passive diaphragm, along with a custom three-way crossover, ensures a cohesive and smooth sound across all frequencies.

6. Strong Bass Performance: The well-controlled and precise bass, with excellent separation and layering, delivers satisfying slams and rumble without overpowering the overall sound.

7. Energetic Midrange: The clean transition from bass to mids and the detailed upper mids make the midrange enjoyable for vocal-centric music and string instruments.

8. Crisp Treble: A well-executed treble provides a refined and extended response, enhancing the overall soundstage with space and airiness.

9. Good Soundstage and Imaging: The above-average soundstage with good depth and precise imaging creates a holographic feel, ideal for electronic, jazz, and vocal-centric genres.
Cons: 1. Slightly Recessed Vocals: The midrange presentation may feel slightly recessed compared to other IEMs, which can affect vocal-centric tracks

2. Not for Die-Hard Bass Heads: While the bass is well-controlled and detailed, it may not satisfy listeners who prefer an overpowering bass presence.

3. Moderate Soundstage Width: The horizontal soundstage width is not exceptionally wide, which might not appeal to those seeking a more expansive soundstage.

4. Cable can feel stiff but has no microphonics.

5. Limited Appeal for Analytical Listeners: The warm and musical sound profile may not suit those seeking a highly analytical and detailed sound signature.
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Brand Background: Binary Acoustics

Since its inception in 2017, Binary Acoustics has been on a relentless quest to elevate the quality of sound and redefine the listening experience. Driven by a passion for audio excellence, the team at Binary Acoustics is dedicated to creating products that merge cutting-edge technology with minimalist design.

The essence of Binary Acoustics lies in their philosophy: "Let your ears convey sound and emotion." This guiding principle shapes every product they develop, ensuring that each piece not only delivers impeccable sound quality but also evokes genuine emotions in the listener.

Binary Acoustics' commitment to innovation is evident in their meticulous attention to detail. They strive to create in-ear monitors (IEMs) that are as compact and streamlined as possible, effectively disappearing into the ears of the user. This design philosophy allows listeners to fully immerse themselves in their music, experiencing the original, pure sound as the artists intended.


A Journey with Binary Dynaquattro 4 Dynamic Driver IEMs

In the world of audio technology, there are few experiences as immersive as listening to your favorite music through a set of high-quality in-ear monitors. Binary Acoustics has taken this experience to the next level with the Dynaquattro, a marvel of engineering and design that promises not just to play your music, but to transform it.

The Binary Dynaquattro achieves this with a combination of three specialized dynamic drivers and a passive diaphragm, delivering a total diaphragm area of 193 square millimeters. This setup ensures a wide and detailed frequency response, from the deepest bass to the most delicate highs.

The Dynaquattro’s unique three-way frequency crossover and independently structured acoustic tubes allow each driver to perform at its best, offering a sound that is both powerful and precise. Whether you are diving into the low frequencies with the 10mm dynamic driver or exploring the high-frequency details with the 6.8mm aluminum diaphragm, the clarity and depth are excellent.

Beyond its acoustic capabilities, the Dynaquattro boasts a design as sophisticated as its sound. With CNC-machined aluminum alloy face panels inspired by steampunk inspired gears and machinery, it symbolizes the precision and innovation that Binary Acoustics is known for. The high-purity OFC silver-plated cable ensures that this exceptional sound quality is maintained, while the interchangeable plugs add a touch of versatility.
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Opening the box of the Binary Dynaquattro is a straightforward yet exciting experience. The black box features a sleek black sleeve adorned with steampunk-inspired mechanical gears in a matte gold color. Inside, you'll find the IEMs nestled securely alongside a box of silicone tips. Underneath the foam padding, there's a rugged carry case containing the cables and plugs, ready for you to explore.

The Contents

1. Binary Dynaquattro: The heart of the package, these in-ear monitors feature a Quad DD arrangement with 10mm, 8mm, 6.8mm dynamic drivers, and a 6mm passive diaphragm. This combination promises a full-range sound with clarity, warmth, speed, and punchy bass.

2. Binary Acoustic Modular Cable: This high-quality cable is crafted with oxygen-free copper conductors and a silver coating, ensuring exceptional sound transmission. It offers versatility with both 4.4mm and 3.5mm modular plugs.

3. Eartips: A set of grey silicone tips in various sizes, housed in a clear plastic carry case.

4. Carrying Case: The rugged carry case is stylish and durable, providing excellent protection for your Dynaquattro IEMs wherever you go. It appears splash-proof and is the same case used by Hiseniors, known for its durability.


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Tonality and Tuning

The Dynaquattro presents a warm tonality characterized by a balanced sound with a sub-bass lift. It offers just enough rumble without being boomy and a vivid upper treble. This results in a sound profile that is warm and balanced, with a particular emphasis on upper mids. The IEM may come across as slightly U-shaped, with beautifully textured bass and mids complemented by balanced treble, adding a sense of airiness and dimension to the soundstage.

Driver Implementation

At the core of the Dynaquattro’s performance is its three dynamic drivers and one passive diaphragm driver configuration. The meticulously tuned drivers cover the full frequency range: a 10mm dynamic driver handles the low frequencies, while 8mm and 6.8mm drivers manage the mid-treble frequencies. The custom 6mm wool paper passive diaphragm adds reverberation to the low frequencies, and the custom three-way crossover ensures a cohesive sound. The result is smooth, crisp sound with exceptional balance and brilliance in the treble, alongside clear and natural vocal and instrument reproduction.


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Bass Performance

The Dynaquattro’s bass profile is warm and balanced, with sub-bass and mid-bass at the same level. This results in well-controlled and precise bass that isn't overly tight but still fun. The sub-bass is slightly more pronounced than the mid-bass, maintaining excellent separation and layering. The bass response is fast, with good decay and reverberation, delivering satisfying slams and rumble when needed. While it may not satisfy die-hard bass heads, its controlled and detailed presentation will appeal to those who appreciate a fun, detailed low-end that transitions smoothly to the lower mids without sounding muddy.

Midrange Warmth

The Dynaquattro shines in the midrange with its warm yet energetic presentation. The transition from bass to lower mids is clean and flawless, ensuring clarity in male vocals and instruments. Female vocals and upper mids offer brightness and detail, making them non-fatiguing for long listening sessions. The midrange maintains a good balance of intimacy and energy, particularly enjoyable for vocal-centric music or string instruments. Compared to the ARTTI R1, the Dynaquattro's vocals are slightly recessed, adding depth to the soundstage.

Treble Excellence

The treble of the Dynaquattro is surprisingly bright for a quad DD set and well-executed, providing a refined and extended response that enhances the overall sound. The treble is detailed and crisp, allowing intricate details to be easily discerned without overwhelming the listener. The treble extension adds a significant sense of space and airiness to the soundstage, enhancing the immersive experience.

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Detail Retrieval and Soundstage

The Dynaquattro excels in detail retrieval, delivering a high level of resolution across the frequency spectrum. The well-implemented three-way crossover effectively divides the frequencies, resulting in clear transients and textured bass notes. The soundstage, while not exceptionally wide horizontally, offers good depth and precise imaging with a holographic feel. This makes the Dynaquattro excellent for various genres, especially electronic, jazz, and vocal-centric music, where its sonic prowess shines.

Timbre and Technicalities

The Dynaquattro boasts a natural, neutral-warm timbre, fast transients for a DD set, and good dynamics. Its soundstage is above average, with good depth and height and slightly recessed midrange presentation. The stereo imaging is close yet wide, offering a well-layered and immersive listening experience. Instrument and vocal separation is handled adeptly, maintaining clarity even in congested tracks. The IEM excels in creating compartmentalized regions within the sound field, thanks to its well-implemented three-way crossover.

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Conclusion

The Binary Dynaquattro is an exceptionally crafted IEM that delivers a warm, balanced, and energetic sound profile with crisp resolution and good detail retrieval. It is particularly suited for listeners who value musicality, with a well-textured, layered, and punchy bass response. While it may not cater to those seeking a brighter, more analytical sound, its precise and immersive audio experience makes it a standout choice for those who love getting lost in their music. The Dynaquattro’s excellent instrument separation and layering, thanks to its exceptional three-way crossover, make it a joy to listen to and a worthy addition to any collection.



https://hifigo.com/collections/binary/products/binary-dynaquattro

https://binary.audio/products/binary-dynaquattro-4-dynamic-driver-iems

Zerstorer_GOhren

1000+ Head-Fier
BINARY AUDIO DYNAQUATTRO: Formidable Quad Driver Cast
Pros: ● Solid and well-constructed composite shell structure.
● Its composite shell's ergonomic design offers an excellent fitting
● Gears and cogs theme for steampunk genre lovers
● That passive diaphragm/radiator really adds some deep resonating basslines and darker tone.
● Fully-packed with inclusions.
● Sturdy Pelican-like storage case.
● Modular stock cable.
● A likeable tuning with some proper colouration.
● Quite versatile in almost type of vocals.
● Zestful yet balanced sounding bass response.
● Sufficiently textured midrange with an ample warmth while it had some energy and vividness.
● It has almost natural sound on its instruments’ timbre and tonality.
● Properly shimmery and bright treble response with good airy extension for an all-DD set.
● It has competent technical capabilities for an all dynamic driver set-up IEM.
Cons: ● Hard to drive as it needs a better device that can deliver a more power output.
● Not for bassheads as it does not have an authoritative and boomy bass response.
● Wishing for another variety of ear tips to choose from.
● Its faceplate design might be less appealing to some audio enthusiasts with minimalist taste.
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"For The Omnissiah!"

~~Adeptus Mechanicus creed


Binary Audio is one of the newly-established audio companies in China and the first model they released for the international market was a collaboration with Gizaudio, The Chopin. The Chopin is a hybrid driver IEM with unusual shell chassis design but it was fully-packed with accessories.

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And now what I have here is their latest unit model, the Dynaquattro. The Dynaquattro seems to be a portmanteau of dynamic or dynamic driver and quattro or four that corresponds with the driver technology and its quantity that were implemented inside. To make it more clear, this set has triple dynamic drivers with different diameter sizes like 10mm for bass, 8mm for midrange and 6.8mm for treble that each of the drivers assigned to a specific frequency section and the other driver type is a 6mm passive radiator which is used to trap some sound pressures generated by its three dynamic drivers to stimulate more resonance on low-pitched instrumental lines. All dynamic drivers have its own different material composition as the 10mm one has dual-chambered magnetic structure with a titanium coating on its silicone, the 8mm has a composite cermet diaphragm which is known for hardness, tensile strength and resistance to oxidation and the last one is 6mm which has high-grade aluminium diaphragm for enhancing treble extension.

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All of the three drivers were connected into three-way passive crossover acoustic tubes for a more coherent, rich and well-separated sonic quality, and also, Binary Audio claims that it utilises the construction of the drivers aided with Klippel precision system for accurate vibration response. It was encapsulated in a UIEM-type composite shell chassis consisting of resin in the cavity base and CNC-milled aluminium alloy faceplate with cogs and gear motif on its design which reminds me of a certain faction in my favourite sci-fi lore, Warhammer 40k. This set uses a proven 0.78mm bi-pin connector as its interlocking mechanism for its detachable cable.

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Its stock cable has a 4-core oxygen-free silver plated copper with PVC insulator coating on each strand as it has a modular feature on its termination plug in which we can interchange it with either 3.5mm single ended or 4.4mm balanced plugs. The cable is quite on the stiffer side but it has a good resistance against entanglement and not hint of microphonics.

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While its shell size seems to be in a larger profile, to my surprise, it offers a good comfortable fitting and comfort into my lugholes with any discomfort. It also offers an excellent passive noise isolation that it manages to block some unwanted external noises from the outside.

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The product packaging of this one is quite well-presented on its presentation with some gears and cogs theme to add some steampunk vibe on it.

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The Dynaquattro is fully packed with assortment and inclusions to be used for listening session either for casual or professional use, and here are the following contents:

● Pair of BINARY Dynaquattro IEM transducers

● Modular stock cable with a detachable 3.5mm single-ended termination plug.

● 4.4mm balanced termination plug.

● Pelican-like storage case

● Ear tips case

● Three (3) pairs of balanced bore long stem silicone ear tips in different standard sizes.

● Three (3) pairs of balanced bore shorter stem silicone ear tips in different standard sizes.

● User's manual

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This set is actually relatively hard to drive. We really need a device that can deliver a medium or high gain on its power output like dongles, DAPs and even desktop DAC amplifiers. This is one of the sets that I've encountered that demands quite a lot of power for a dynamic driver set either in single or multiple configurations. (This one somehow reminds me with my experience on RHA CL1 from the last decade)

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It appears that Dynaquattro has a U-shaped sound profile that all frequency parts are presented on its overall sound spectrum and also sounds pretty well-balanced as it has some proper emphasis of lows and high frequencies.

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(Graph was provided by @baskingshark , credits to him and his effort)


LOWS/BASS:

It seems that it has more sub bass presence on its overall bass response but its mid bass also has a satisfying texture to give a punchy and vividness on the note weight on bass-centric instruments and deep male vocals like bass and bass-baritones while maintaining a clean and well-controlled bass response.

Bass guitars have a resonant and raspy sound while bass kick drums have a sustaining and thudding sound on every stroke, and then on bass and bass-baritone vocals, while it might be lacking in terms of fullness but it has dark tone, ample volume and deep resonance as we will hear clearly its vibrato.


MIDRANGE:

The midrange is a bit recessed on its overall presentation but it has an ample warmth for vocals and instruments to sound more natural, articulate and detailed with a tad of energy for a lively and vibrant sound on female vocals, strings, woodwinds and some percussives.

This one is quite remarkable for its vocal flexibility that is able to give a nearly correct timbre and tonality for each vocal type. On male vocals, baritones have ample lush and smoothness on their voices while tenors have clear and a tad brassy on them, and countertenors have emotive and tender vocal characteristics. As for female vocals, contraltos have rich and sufficient plushiness from their distinctive chesty vocals, mezzo-sopranos have sweet and tender on their voices and lastly, the sopranos have a liveliness on their vocals as they sound shining and silky.

As for instruments, on string instruments, guitars have balanced with some crispness on its tone, violins have vibrant and eloquent sound on every motion on its bowstrings and cellos have that stately and lively sound on them. When it comes to woodwinds, piccolos have graceful and light sound, concert flutes have rich and silvery sound, clarinets have rich and melodic sound and saxophones have a velvety and sonorous sound on them. Brasses like trumpets, trombones and horns have a brassy, full and intense sound respectively. On percussion, tom-toms have ample warmth and resonant sound while snare drums have hard, clear and penetrating sound on hitting their drum heads. Tenor drums have the full and sonority of its sound profile and kettledrums have a deep and resonant sound. Pianos appears to have an balanced and even tone as it sounds well-balanced as it articulates its notation with a consistent rich, sweet and clear sound.


HIGHS/TREBLE:


In my opinion, this set is a bit on the brighter side of tuning but it doesn't sound aggressive that some treble-sensitives might frown upon. It has a crisp and some proper elevation on the upper mids and presence treble enough to give a note definition and clarity on vocals and attack of both rhythmic and percussive instruments while maintaining a good controlled on sibilance and shrill, and also it doesn't any unnecessary overboosting in the presence part of this frequency that might give some harshness.


For an all-DD set, it is able to convey a sufficient intensity of its sparkle and a moderate airy extension on its brilliance section. All treble-clef instruments will have a sufficient gleam, sheen and clear tone on their respective tonal colour like cymbals, hi-hats, glockenspiels and celestas.


OVERALL TECHNICAL ASPECTS:

This set is able to project an above-average sound field dimension with a moderate width on its lateral span, good height reach and seemingly an immersive depth. It somehow gives me a moderately spacious head stage with my aural perception.

Stereo imaging presents an atmospheric-like presentation with some good layers of dynamic and frequency tones from instruments and vocals on each section as it has good separation on each of them that I can locate its positioning at almost the pinpoint for an all dynamic driver set-up IEM. Playing complex multi-instrumental tracks will be easy-peasy on this one.

There's a remarkable cohesion of its three dynamic drivers and a passive radiator in terms of transducers performance as they deliver a quick transient response without any incoherences like uncontrollable resonance and distortion. And the passive radiator appears to add more depth and darker tone on low frequency. It has competent resolution capabilities as it has solid macro-dynamics and an acceptable micro-detail retrieval as it somehow extracts some nuances and subtleties of information from an audio track.


PEER COMPARISONS:

LETSHUOER DZ4

  • It had a similar driver configuration with the Dynaquattro but it uses a smaller yet uniform dynamic driver.
  • It offers more variety of ear tips to be used.
  • A stock cable with modular features.
  • Easier to drive.
  • The tuning on this one is more neutral sounding
  • Tighter and precise bass response
  • Neutral, smooth and more transparent midrange.
  • More smoother and a bit darker treble response compared to the Dynaquattro
  • It has a similar technical performance although it has less resolving micro-detail capability than the Dynaquattro.


As I conclude my review on this set, this latest Binary Audio product really impresses me on how it delivers a well-balanced, dynamic, methodical and yet quite a musical sound that I really enjoy some of its proper colouration of its tuning. While its power output might be bothersome to some budget-conscious audio enthusiasts as they will invest more on better devices that can deliver an optimal performance on its sonics, but pairing it to a proper device will show the full capabilities of the tonal quality of this set as we will be fully-satisfied with its sound performance.

Binary Audio put some effort as it meticulously designed and crafted this IEM that will be acceptable to the discerning ears of the audio enthusiasts in the audio community and it appears that they are succeeding on their goals for this set.

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Binary Dynaquattro is exclusively available on HIFIGO, you can visit their official site for more information about this product.


LINKS:

https://hifigo.com/products/binary-dynaquattro

https://www.aliexpress.com/item/1005007344307882.html

https://www.amazon.com/dp/B0D7MKNW89/binary+dynaquattro



Also check out my previous Binary Audio product review on Head-Fi, the Binary Audio Chopin.

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SPECIFICATION:

MODEL
: BINARY AUDIO DYNAQUATTRO
IMPEDANCE: 23Ω
SENSITIVITY: 111dB
FREQUENCY RESPONSE: 20Hz - 20kHz
CABLE LENGTH: 1.2m
PIN TYPE: 2-PIN CONNECTOR
PLUG TYPE: (MODULAR) 3.5mm, 4.4mm
DRIVER UNIT(S): 3 DYNAMIC DRIVER(S) + 1 PASSIVE RADIATOR

TRACKS TESTED: ( * = 16-bit FLAC, ** = 24-bit FLAC, *'* = MQA, '*' = DSD, *'= .WAV)

Alison Krauss -When You Say Nothing At All *
Jade Wiedlin - Blue Kiss**
Led Zeppelin - When The Levee Breaks **
Mountain - Mississippi Queen *
Queen - Killer Queen **
Guns N' Roses - Patience *'*
Eric Clapton - Tears in Heaven '*'
Sergio Mendes- Never Gonna Let You Go '*'
Pearl Jam - Daughter **
Roselia - Hidamari Rhodonite *
Assassin - Fight (To Stop The Tyranny)*
Celtic Frost- Visual Aggression *
New Order - Blue Monday *
The Corrs- What Can I do (unplugged version) *
Jimi Hendrix Experience - Voodoo Child *
The Madness- Buggy Trousers *
Metallica - Motorbreath **
Mariah Carey- Always Be My Baby *
Destiny's Child - Say My Name *
Malice Mizer- Au Revoir *
Mozart - Lacrimosa *
New York Philharmonic Orchestra - Dvorak- Symphony 9 " From the New World." *
Eva Cassidy - Fields of Gold (Sting cover)*
Michael Jackson - Give In To Me *
Exciter - Violence and Force *
Diana Krall - Stop This World **
Debbie Gibson - Foolish Beat *'*
The Sisters of Mercy – Lucretia My Reflection**
Suzanne Vega – Luka **
Lauren Christy – Steep *
Ottoman Mehter - Hucum Marsi *
Diana Damrau - Mozart: Die Zauberflöte*



P.S.

I am not affiliated to BINARY AUDIO nor receive any monetary incentives and financial gains as they provide me a review unit for an exchange of factual and sincere feedback from yours truly.

Once again, I would like to send my gratitude to HIFIGO especially to MS. ALICE XIE and MS. YUMU SONG for providing this review unit. I truly appreciate their generosity and trust towards me and other reviewers.


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Last edited:
o0genesis0o
o0genesis0o
I actually declined the offer the review this one 😅 need to focus on others in the backlog.
Zerstorer_GOhren
Zerstorer_GOhren
@o0genesis0o I manage to trim down my backlogs given that Im a bit too late to publish some units on their prime introduction in the market. I still have 6 backlogs units.
J
jmwant
Excellent description of how it sounds. The faceplate is kinda unique looking.
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