7Hz Timeless II 14.5mm Planar Universal IEM

First I would like to thank Sonic Mantra team for providing me with this retail unit for me to test out. This is not a review unit, it's a retail unit that was bought by our team. This review reflects only my honest opinion. I did not get influenced or paid to say any good or bad about the unit.


The revolutionary 7Hz Timeless now has a sequel, the Timeless II. 7Hz took their sweet time releasing the follow up. The price for the Timeless II is $229. Apart from the same form factor, the design and tuning nozzles are the main changes along with sound.

Speficification:

• THD: <0.2%/1KHz
• Driver: 14.5mm planar driver
• Impedance: 15.2 ohms
• Connector Type: 0.78mm 2-pin
• Sensitivity: 108db/V@1KHz
• Weight per earbud: 5g
• Frequency Response: 5-40000Hz

Inside the Box

• 7HZ Timeless II
• Carrying Case
• 3.5mm + 4.4mm combo adapter
• 10 Pairs of Silicone Ear Tips (S/M/L)
• User Manual

The Timeless II has a carbon fiber like faceplate that is engraved on the metal with CNC machining. They are made of solid metal. The interchangeable nozzles are of premium quality as well. Despite full metal body, the IEMs are rather lightweight. The fit is comfortable even for long listening sessions. It doesn’t go very deep but a snug fit is achievable. The Isolation isn’t all that great. With the right ear tip, a little better isolation is achievable. The cable is gorgeous and very premium. It is a bit memory prone but that’s not permanent. From the color, core thickness and covering kits, everything feels very premium and complements the IEMs pretty good. The accessories are premium as well. The storage case is made of metal with the same engraved carbon fiber pattern. the tuning nozzles are screwed on a sleek metal plate.




In my case, the storage box seems to have stronger metal than the IEM shells themselves which caused some scratches on the side of the IEMs while storing them in the box.



I used the Timeless II with the stock cable and opted for Epz M100 ear tips as they delivered the best sound to my ears. All the impressions are based on the setup mentioned here.

Golden Standard Nozzle:

Bass:
The sub-bass presence is adequate and not over your face type. The extension is enough deep and rumble reels fast. Sub-bass sounds clean and textured. it doesn’t fall short, rather complements mid-bass pretty well. The subtleness and the deep rumbles are easily distinguishable and feels very detailed. It has good body and slight hint of warmth.

The mid-bass is fast and punchy. The drum hits sound hard and tactile while the bass guitars sound crisp and detailed. Here mid-bass has slightly more focus than sub-bass. The transition from sub-bass to mid-bass is clean and controlled. The note weight is just right, not too thin or too thick.

Mid-range:

Vocals sound smooth and tonally neutral with a pinch of warmth. Male vocals are detailed and textured. Again body and note weight is just right where it doesn’t sound thin or thick. It feels rather easygoing without much going on here.

As for female vocals, they sound smooth but on the leaner side of things. They do sound smooth. The ascension and descension of low and high pitch notes are smooth and well controlled. There is no shoutiness whatsoever in both male and female vocals. The upper mid-range is well controlled and the presence is in a place where it doesn’t add any extra brightness or artifact nor does it mess up the tonality.

Instruments have neutral tonality here. The lower frequency instruments have a touch of warmth. Piano sounds pretty articulate. The instrument presentation in the mix and the control is commendable.

Treble:

Treble sounds incredibly detailed but has a planar kind of taste which I enjoyed. Lower treble extension is very good and each note sounds really controlled. The notes might sound a tad bit thinner but it offers incredible separation in return. Upper treble is airy and sparkly. The treble might sound ever so slightly brightish to some but that is the planar in work which doesn’t sound fatiguing at all and can be listened for hours.

Technicalities:

Technical performance doesn’t need much explanation given the legendary planar pioneer. From sound stage to imaging, separation, dynamic range and transient response, everything is incredible here. Sound stage is big and spacious. Imaging is precise with pin point accuracy. Instrument separation is one of the best needless to say. Same goes for detail retrieval as well.


Silver Standard Nozzle:

Bass:

The sub-bass extends deep here with deep rumble. The presence is quite good. It has enough body to make it sound powerful. But the warmth isn’t here anymore. The texture is good but in terms of details it might be a step back from the gold standard nozzle.

In terms of mid-bass, there is a loss of focus compared to gold standard nozzle and comparing with sub-bass. It is still hard hitting and punchy with tactile feedback. But the warmth can’t be found here. Some drum hit resonances may sound too much because of the off sounding tonality of some drums. Nevertheless, it is clean, precise and well controlled.

Mid-range:

Male vocals sound leaner compared to gold standard nozzle. the texture and presence is similar but it lacks warmth. As a result, the lush and rich vocals are missed here.

For female vocals, they sound smooth and lively. There is more energy compared to gold standard nozzle but that makes the vocals a bit musical. The upper midrange is pushed up a notch here and it doesn’t hold back in energy. Still it doesn’t show any sibilance but does sound analytical if you may.

The instrument tonality is a bit off as well. Due to the extra energy it sounds more analytical. Piano tonality seems more effected by this. String instruments sounds bright as well.

Treble:

The tonality is straight up bright. It sounds more energetic in lower treble and pushes with the details as well but not in a pleasant way compared to the previous nozzle. It is more analytical but due to the bright signature the planar timbre doesn’t surface as much. Upper treble is more airy and sparkly. The sparkles are sharp which is portrayed especially in snares and cymbals.

Technicalities:

It retains all the aspects as in the previous nozzle. If I had to say, the transient response seemed ever so slightly better or it could be just imagination.




Golden Dome Nozzle:

Bass:
Sub-bass presence is more prominent here. It is authoritative and powerful. Extension is very deep and rumble is more feelable than audible. It sounds more textured than other nozzles. While the sub-bass has a nice focus here it isn't enough to most satisfy bass-head folks.

Mid-bass sounds fuller with good body. Slams hit very hard with great tactility. Sub-bass and mid-bass both is presented in a way that none overpower each other. Bass performance here the best of all nozzle in terms of amount, body and dynamic range. It sounds more like a dynamic driver than a planer. It has all the good aspects of other nozzle on top of having great lush sound and good note weight. It does sound warmish here.

Mid-range:
Male vocals sound full bodied, lush and smooth with good texture. It has the most note weight in this nozzle. Texture and articulation is commendable here as well. Male vocals are beautiful and rich sounding with no flaw be it low pitch or high pitch vocals.

Female vocals sound smooth and lively without excessive energy unlike the other nozzles. Note weight is good enough here as well. The ascension and descension of vocals are handled nicely here. Moreover the upper mid-range is has good energy without ruining anything anywhere. Vocals are more lush and smooth sounding with this nozzle compared to others.

Instruments are commendable as well. The energy is handled nicely and the tonality is pleasantly warmish as well. All instruments seem to portray closer to natural sound. The blending of all the instruments sound pleasant yet detailed where needs be. The nuances like bass slide, string noises- hums, squeaks are presented in a natural manner which sounds nice.

Treble:
Treble is lively, vibrant and very detailed. In terms of tonality, it carries that energetic side without making it bright and also carries some hint of warmth. Tonality can be said natural here as well. lower treble is very detailed with good amount of energy while the upper treble has more than enough air and sparkle. In some cases, some snares might come in as too splashy or bright but that is not the case with all tracks, rather seems like a mastering thing.

Technicalities:

The same thing as all the other nozzles. The standout part with this nozzle is the better dynamic range handling, texture and macro nuances portray.


Silver Dome Nozzle:

Bass:

The sub-bass here is deep and rumbly but its less than the golden dome nozzle. Warmth is lesser here ass well. other than that, everything else is similar to other nozzles.

Mid-bass is much less pronounced here compared to golden dome nozzle. it does hit hard and has adequate body. But the amount is lesser along with warmth. The authoritative character isn’t here as much as the gold nozzles. Still it is enough and might appeal to people who seek more neutral bass tonality. Texture is more subtle than pronounced. Details is no less than any other nozzle.

Mid-range:

Male vocal is well textured and has adequate amount of weight behind them. It does come across as smooth but slightly lean sounding compared to golden nozzle. it doesn’t have that warmth like the golden nozzle but the neutral tonality is still very good for the male vocals.

Female vocals sound thin compared to gold nozzle. it is smooth and easygoing in most part but the upper mid-range energy sometimes goes up a notch but it doesn’t cause sibilance despite that. The transients are handled nicely. Other than the thinness there isn’t much of a difference elsewhere.

Instruments are more energetic with a hint of brightness tonally. But it is less energetic than silver standard nozzle. lower midrange instruments come across as neutral rather than bright. The tonality is not off by much compared to silver standard nozzle.

Treble:

Treble has hint of brightness but not as much compared to silver standard nozzle. They do sound energetic on the lower treble side while the upper treble is a bit too sparkly in certain frequencies like with snares and cymbals. Other than that everything else is lesser but similar to silver standard nozzle.

Technicalities:

Stage is as open as the other ones, might sound ever so slightly open than others. Other aspects are the same as other nozzles. Transient response is better than golden dome nozzle but the brightness is the tradeoff here.


The Timeless II performs the best with warm leaning sources. Thus a source with hint of warmth is highly recommended. For ear tips, the stock collection is generous and performs good enough. Other aftermarket ear tips I tried with it sounded decent as well. However, the Epz M100 ear tips are the best pairing for me. They Give a delicate bass performance, is enough open sounding and the overall presentation is very pleasant.


The 7Hz Timeless II does not disappoint from what is expected from it. The relatively organic or neutral analytical sound it provides with different tuning nozzles makes it a great all-rounder and more appealing for those who want different taste depending on their mood. The premium accessories and sound quality definitely is worth the price. In its price range, it is one of the best planar out there. The additional tuning modification capability is a big advantage for more versatility. Thus the Timeless II is recommended considering everything it has to offer.

These are planars that have a good tonality overall. No major complaints from me other than the famous planar timbre which they've managed to reduce but not remove with the silver spiral nozzle. These do little wrong overall which is great for folks who just want to throw on some IEMs and go. This review is done with the silver spiral tips installed.

Bass: Very good response out of these. You get a nice crunch from the midbass, and you get some weight from the sub-bass to round things out. I’m missing a little bit of extension in the sub-bass, but overall these things can jam. Bassheads should be happy with these after bumping it up some more. Stock, these are a warm-head type shelf. Plenty of texture, the decay is fast and crisp. These drivers do a great job with the low end. My only gripe here is I wish there was a bit more depth to the sub-bass. It sounds up-front and doesn't really have the depth that I'm craving.

Mids: There is a smooth transition from the upper bass to lower mids, and you get a warm sounding lower midrange which sounds pretty good. Vocals sound nice with good dynamicism and detail retrieval. The added bump of warmth gives you a comfortable yet clear sound. Very pleasant to the ears, and the mids sound very natural until you get into the upper mids where the planar timbre rests. I personally can’t listen to it because it quickly fatigues my ears. Things like snares just cut straight to my eardrums. Other than that, I’ll say that the mids that these produce are very good.

Highs: Well done, 7Hz. Very balanced, smooth, airy and clear with very good detail retrieval. They sound natural with no odd peaks or dips that I can make out. Not too bright, not too dark, but somewhere in the middle. The treble isn’t the most resolving that I’ve heard from a planar setup, but we’re talking about turning resolution down from say an 8.5 to an 8. As with the sub-bass, I’m kind of wanting a little more extension from the treble here, but I’m happy with what 7Hz has achieved with the 14.xmm single planar setup.

Soundstage & Imaging: These are on the narrower side overall. Vocals are in your head with instruments playing outwards from your ears. Hi-hats are up top with atmospheric sounds spanning in front of you. Pretty good stage overall, just wish it was wider. Imaging here is good as well. The background is black and instruments are easily located in the stage.

Cable: It’s a 4 core cable with a threaded end to swap different tips over. It’s on the stiffer side, though. The good thing is that it has a threaded tip over a simple press-fit one as those can short from fatigue over time. It also isn’t angled which is my preference, but those are pretty hard to come by in 4.4mm flavors. Overall, it’s a durable cable that should perform reliably.

Driveablility: I’ve you’ve powered other 14.xmm planar IEMs, then these aren’t much different. They aren’t the most power hungry out there, but they do benefit from powerful amps. No issues coming off my Topping G5, and honestly, medium gain is all the volume you’ll ever need.

Comfort: The shells are on the narrower side, but they can feel a bit edgy. I have big ears, so the circle isn’t an issue, but these might be uncomfortable for some ears. Because of how narrow they are, you might be able to get away with laying down with them without your ears getting smashed. Overall, the comfort here is pretty good for me.

EQ: Honestly, these don’t need much. If you’re a basshead, then you’ll be happy with these because they can take a large boost in the sub-bass frequencies without muddying up the mids and retain good texture. I’m a basshead, so I went ahead and bumped that up, and I took care of the planar timbre.

Bass: These don’t need much stock. If you’re a basshead, try +8dB 25Hz peak, qfactor 0.6. That brings out the rumble some more, keeps the texture and gives you a smooth transition into the mids. I will say that I had to use more dB to bump up the sub-bass than what I’m used to, so these aren’t very sensitive to EQ, but it does work well with these once you dial in the quantity level you want. It takes the boost very well without sacrificing texture and bleeding into the lower mids. Very well textured, fast and crisp, but man I need these to dig just a little deeper.

Mids: The planar timbre needs to go. I did -3dB 2.5KHz peak, qfactor 2. Now, I can listen to these without the snares crashing my ears, and it honestly feels like it opens up the rest of the upper mids for you to hear other details better.

Highs: I really like how these do treble, so I didn’t touch them. The highs sound really good to me.

Overall: Aside from the planar timbre and some extra extension in the extremities of the FR response, these are a home run in my books. A little more soundstage width to get the vocals out of my head would be a nice improvement too. Overall, these are the Goldilocks of IEMs for me. These just do a lot right and the things that need improvement are pretty minor overall.

vs Zetian Wu Legend: The Zetian Wu Legend (review) covers the minor shortcomings of the Timeless II. It offers superior dynamics up top and better sub-bass depth down low as well as a wider soundstage. However, it brings issues of its own that need EQ in order to fix. Only after EQ would I recommend the Legend over the T2. The T2 does a lot right out of the box, and they are a safer buy overall. It also has a 3.5mm plug which opens up many more amplification options for people.

Bonus, FR Talk:



It’s very refreshing to only have to make so few adjustments to the FR curve. These do a lot right, and if you’re not a basshead and aren’t sensitive to that planar timbre, then these need nothing. Crazy. You see that there’s an 8KHz peak, but that’s just coupler resonance from the measuring equipment. I don’t really hear it, so I ignore that area in charts.

Being a reviewer of sorts, I try to give my subjective opinions on iems, in the hobby at the moment 95% of iems released at the moment are good a solid 4 stars in their price segment so the differences between great iems and good iems is all about the nuances. All reviews are based on a single point in time for the reviewer next week an iem can come along and make a mockery of your previous judgement.

7Hz are rightfully acknowledged as the company that started the Planar craze/wars after the release of the original Timeless it was a groundbreaking Planar that introduced the 14mm Planar that was both easy to drive and tuned well, giving people a level of technicalities usually afforded to a much higher price category in the hobby. What followed was a myriad of other companies using the same driver to challenge the Timeless.
Making the Original Timless less unique. Well after an initial false start we now have the successor the 7hz Timeless ii with no less than 4 sets of unique tuning nozzles and a new Planar 14.5mm driver

The iems construction is of aluminium with a distinctive raised textured pattern keeping the circular design of the original. The main change, and a lot of people are going to be happy about this, is the move from mmcx to a 2pin. Like the original they fit my ears like a glove, I can wear them for hours without any discomfort.

So what have 7hz brought to the planar iem market that's any different to the countless other planar iems released this year?



The 7Hz Timeless II upgrades the original with a 14.5mm planar magnetic driver, featuring the world’s first dual-sided coated diaphragm for enhanced responsiveness. It also introduces a tunable nozzle system, allowing users to adjust sound with different nozzle options. The redesigned 7-layer driver enclosure ensures precise tuning, durability, and stability.
The Timeless II features a tunable nozzle system, inspired by speaker phase plugs, allowing users to adjust ultra-high frequencies to their preference. Different nozzle options provided to offer precise sound adjustments to suit any music library.

Upgraded 14.5mm Planar Magnetic Driver: Building on the success of the original Timeless, the Timeless II introduces an upgraded 14.5mm planar diaphragm—the first dual-sided coated diaphragm in an IEM. Using a specialized silver alloy coating and driven by a powerful dual-sided N52 magnet array, this new diaphragm delivers exceptional responsiveness, pushing planar technology to new heights.

Redesigned Driver Enclosure: The new planar drivers are housed in a 7-layer acoustic enclosure with double rear venting and a secure locking system, ensuring balanced, natural tuning. The diaphragm is directly mounted for increased rigidity, stability, and tighter surface tension.

Upgraded Detachable Cable: Equipped with a 4-core ultra-pure 7N single-crystal copper cable and 0.78mm 2-pin connectors, the Timeless II offers enhanced warmth, body, and detail. The detachable cable design allows for easy customization and extended durability.

Well the unique tuning options help sculpt the sound signature to your taste, the Timelles ii doesn't conform to the standard singular sound signature that their rivals are pumping out. The Timeless ii has more options including the unique bullet shaped nozzles that give more expanded staging capabilities than their rivals. For this review I favoured the gold bullet Nozzles as they expanded the stage without loosing the dynamics of the the low end.
All the nozzles pretty much only alter the the treble area to some degree none caused harshness or sibilance.



The Timeless II is an exciting iem it instantly grabs your attention .The bass quailty with texture and details is available when the music calls for it never adding extra colouration to the mids. The quantity is at the level of slightly boosted from natural but still impressive. The bass is fast with good texture and detail and quantity is more than the original. Dont think that its light in bass it isnt, its just about perfect for my taste.

The mids are smooth, extremely airy, not thin they have good body and very natural timbre, class leading details and a major strong suit the Vocals are wonderfully natural both male and female sounding on point neither recessed nor forward, perfectly positioned centre stage. Instruments are layered with pin point accuracy.

Treble is extended with details and good air with none of that planar timbre that was exhibited by the original or the many pretenders that followed, this iem just plays music as a cohesive whole no part standing out from the rest. What you get is every part of the frequency range opened up to reveal details lesser iems dont. There's zero unnatural timbre from the Planar. The overall timbre is supremely natural with no fatiguing peaks or obvious defects. Not something I have experienced with planar iems and I have 14 different sets to compare.



I'd just like to say upfront I believe we are all biased when giving our subjective thoughts about IEMs and earbuds be it a particular type of signature that works with our music library or how they look and feel in our ears. On the subject of ears everyone's ear anatomy is different and this effects fit and seal which in turn effects the perception of bass response so I recommend finding the right ear tips or foams that suit your ears to get the best of any earphone.
My review star ratings are linked to the price range of the iem eg a 5 star review of a $100 iem is not equal to one of a $500 iem.

I’m and audio enthusiast with a collection of over 250 iems, 30 different sources with a music collection that numbers over 100,000 tracks and 18 flathead buds I share my impressions as a way to share my enthusiasm for the hobby I approach from the premise of music first technology 2nd, what does this mean? For me the technicalities are not of prime importance but does the music move with this particular iem.

I’m a connoisseur of many different sound signatures. The only prerequisite is musicality I’m not a fan of analytical cold playback. My scale of success when it comes to evaluating earphones is; do I get goosebumps when they playback my favourite tunes. There are many good earphones but do they give me goosebumps? Unfortunately I have a draw full of just good earphones.
I want the earphone that I reach for without thinking because I instinctively know it will bring the thrill I’m seeking from my music.

The Timeless II comes with a nice quality 2pin copper cable with a changeable termination 4.4mm or 3.5mm I foynd no need to change the cable as it was of such high quality. There's a beautiful aluminium case which has a screw off lid that matches the faceplate of the iem. and a huge selection selection of eartips including some of the 7hz proprietary clear tube tips I personally found epro Propeller tips were my favourites for the Timeless helping to expand the staging even more.



Now I know there are those who don’t believe in burn in of earphones, all I’m going to say is, I burn in all my earphones the Timeless II really opened up at the 50 hour mark I've found all planar iems really benefit from a period of burn to smooth out the signature

Disclaimer
7HZ was kind enough give me a small discount for the Timelles ii I am not affiliated with 7hz and of course was not asked for any copy checking before publishing, they are seeing this the same time as you. All pictures taken be me or sourced from the 7hz. ALL opinions shared in this review are my subjective thoughts.

Make sure to research any earphone before you buy!

The 7hz Timeless is available from the Linsoul website,
see the non affiliated link below



https://www.linsoul.com/products/7hz-timeless-ii?_pos=1&_sid=e01fac408&_ss=r

I want to really enjoy my music. Something that releases the full scope of what the artist created in the studio. The 7hz Timeless II achieves that with cohesion ensuring to there’s no jarring transitions between the frequency range. The Timeless II have a natural slightly elevated bass signature with more sub bass thatn the OG Timeless with a solid level of midbass attack not usually found in planar iems, its not thin it has an very open detailed signature bass is textured and layered. The mids are free of colouration with no extra colour in the vocals male vocals and female are realistic and sweet with a natural timbre. The vocals are front and centre with instruments placed exactly where they should be showing depth to the stage with natural wide holographic presentation full of details.

The mids are natural and extremely detailed with no edge there's excitement in the vocals and guitars I was drawn into the music, Pianos and Guitars are given a really even treatment with good note weight sounding exactly as you would expect if you were in a concert hall or studio

The Transition from upper mids to lower treble is smooth and sibilance free, even with songs that have sibilance bult into the recording.

The timbre and tactility of drums, strings, guitars and brass instruments is very natural all instruments find their own place. Vocals both male and female are reproduced authentically with emotion, every inflection, intonation is apparent as a singer climbs the scale to the crescendo it is presented well with nice separation, if a voice has gravel you hear it in intimate detail, vocals have a very pleasing weight coming across very natural with the Timeless II everything is highly detailed with excellent separation and staging while retaining a highly musical feel

When I'm evaluating earphones I have a play list of roughly 100 songs of mixed genres. With the Timeless II I was analysing the different frequency ranges listening to albums in their entirety just loosing myself in the music. I found they I worked across all the genres in my library with including Hip hop where the bass is sufficient enough for the big bass drops always sounding smooth, spacious and detailed.

Michael Bolton - When a man loves a woman

Sounded wonderfully full, detailed and clean with the dynamic full sounding drums and detailed full bodied of guitars with enough edge to turn up the excitement levels. Bolton's magical tenor vocals sounding full and sweet with a depth of detail I rarely experience at this price level, with no thinness the layering in this 80s classic AOR song was produced with expert precision wuth staging tall, deep and wide full of atmospherics a really enjoyable listen.

Alanis Morissette: You Oughta know ,

the angst ridden vocal is fabulous with just enough weight to draw you in slowly building with emotion the vocal acrobatics are centre stage with the spacious holographic staging giving a feeling of being surrounded with instruments just breathtaking. The staging is brilliantly reproduced increasing the atmospherics greatly. The Timeless II works incredibly well with studio and live recordings putting you front and centre in the room with the artist surounded by the instrumets .

Steely Dan's – Black Cow,

one of the best produced albums in my opinion was played with a breathtaking expertise at this price range, drums, keyboards, vocals , hi-hats and cymbals were natural with excellent decay space and staging with good height, depth and width enabling me to pick out instruments in the mix, this song felt open and airy with the layering of the instruments expertly presented the low end was particularly well presented with fantastic fast. Punchy dynamics.

Peter Gabriel- Solsbury hill

the way the Timeless II played back this song was masterful Gabriel's vocals were very detailed with wonderful depth exposing the unique qualities of his voice the strum of the guitars was separated from the complex percussion the individual parts of the song floating in the mix separate but together in a cohesive whole. The Timeless II sounds immersiive and expansive avoiding any congestion just sitting on the right side of musical while being very analytical.

The Hu – This Mogul (with William DVall) –

The dynamics of this track are huge with drums guitars and Mongolian instruments, the Horsehead fiddle, Tovashuur, Tumar Khuur, Tsuurare and Mongol throat singing with a special guest William DuVall of Alice in Chains. The power of this dense, complex and rhythmic masterpiece is opened up with exceptional detail and pin point accuracy the bass quantity doesn’t overpower the rest of the signature theres enough slam and texture to give the driving rhythms and dynamics room to breathe. I didn’t hear any congestion in the instrumentation despite the density of this track. The vocals of William DuVall stood out against the wall of instruments and were on point and unveiled. The Timeless II didn’t feel exposed with faster tracks with instruments in the same frequency range still being given space to be heard with zero congestion or planar timbre present.

DIRE STRAITS: PRIVATE INVESTIGATIONS

The Timeless II really added to the atmosphere of this song with its sprinkling of multi-layered instrumentation and sound effects every pluck of the string ringing out in perfection Mark Knophlers half whisper vocals breathing in your ear the impactful drums with quick transients fading into the mix every crisp footstep making you check the room. There's a part of the song about two thirds of the way through when a cat calls followed by breaking glass Timeless reproduces every detail of the shards crashing to floor to great effect with the huge drum parts resonanating with impressive dynamics.

The Timeless II is reasonably easy to drive for an planar I had no issues using them with my , Daps, Dongles in getting loud enough, the dynamics and open sound was present with all sources the texture and layering they are capable of was available for all to some degree. The Timeless II let's the signature of the source shine in the way only a truly transparent iem when using higher quailty sources with more power the dynamics were even more impressive all aspects of the sound signature expanded taking the overall experience up another level.

I'm not a fan of analytical sounding IEMs that force details into your ears like a photograph with HDR and sharpening set at max a decidedly digital representation. I'm more Vinyl on a turntable, Leica manual focus, sumptuous colours on kodak colour gold film, kinda guy, where if you look really close all the details are there but it's the whole image you appreciate rather than just how sharp it is.the H60's secret sauce to present all the details without any sharpness or fatigue



Sources used:
Onix XM5 Overture
Shaning M6 Ultra
Sony NW-WM1Z
Fiio Jm21
Fiio BTR17
Aune M1P
Cayin N7
KAEI TAP1 with Burson v7 OP AMPs

My Favourite source was without doubt the Cayin N7 through the KAEI TAP1 with Burson v7 CLASSIC OP AMPs the Timeless II is in my opinion without doubt the best single planar earphone in my collection even outperforming my more expensive iems such as the Audeze Euclid Planar Magnetic which was 5 times more expensive.
I also really enjoyed the Timeless II with the Fiio BTR17 out and about streaming from my Samsung Galaxy S24Ultra using LDAC.

The shells despite the circular shape were very comfortable and I used them for over 8 hours without break and had zero fatigue issues.

Comparisons



LETSHUOER S12 2024

The obvious first comparison This well received planar is the summit of Letshuoer's planar catalogue with a very pleasing tuning which is very similar to the Timeless II with the flat gold nozzles
Treble on the S12 is not as detailed or extended as the Timeless II which has more air and greater resolution the notes are rounder less harsh, therefore not as fatiguing
When comparing the sonic signatures overall the blend of low, mids and high are smoother seemingly with out any dips or peaks to signal transitions. The mids have more depth and slightly warmer on the Timeless II the bass has more mid bass texture and presence than the S12 added to the wider staging the Timeless is superior across the board.



TRN Azure Dragon

A planar with a distinctive shell and it's own selection of tuning nozzles, which don't really change much, is an interesting addition to the planar scene. The tuning signature is not similar to either the Timeless II or S12 2024 offering a sound that lighter on bass and a much darker treble presentation Its so different I feel the comparison is more a matter of taste than the S12 for my tastes the Timeless II IS superior but if you prefer less bass with way less midbass and a dark signature you may prefer the Azure Dragon.



Conclusion

The Timeless 11 is a perfect example of a sequel being better than the original, not a rehash with a new paint job rather an improvement across every aspect playing my mainly Classic Rock and Pop of the 70s,80,and 90s with deft skill even the most complex progressive rock was played with expertise I enjoyed using them with my DAP collection to taste the different signatures they present. If I was looking for just one planar iem the Timeless is the undisputed champion
Its going to be very interesting see how the other planar players react or if we've reached the endgame for single planar iems.

My absolute recommendation if your looking for a planar iem to beat them all.

Introduction

Every company is looking for success, and if it is possible to make it last, even better. Several years ago, 7Hz launched its worldwide success: Timeless. It was not the first IEM model with planar driver, but it was one of the most successful and pioneer in a new saga of great IEMS using this same type of driver. Many other brands have copied this success with better or worse results. But planar drivers in IEMS are no longer a thing of the past. In fact, brands have explored this technology and have gone further to attract the attention of users. But, after this time, 7Hz has come back to bring the new version to the market: the 7Hz Timeless II. This new model updates the original with a new 14.5mm magnetic planar driver, which incorporates the world's first double-sided coated diaphragm for improved responsiveness. The internal coating process applies microns thick of a specialised silver alloy, which significantly increases the surface tension of the diaphragm. The new diaphragm, driven by a powerful double-sided N52 magnet array, is extremely sensitive and takes the planar diaphragm concept to a whole new level. It also incorporates an interchangeable nozzle filter system that allows users to fine-tune the sound with different options. The 7-layer transducer housing has been redesigned to ensure precise fit, durability and stability. The ultra-pure 7N monocrystalline copper cable with 4 cores and 0.78 mm thick 2-pin connectors has been redesigned. In the following, we will go into detail about this new product in the 7Hz planar saga.



Specifications

• Driver Type: 14.5mm magnetic planar.
• Frequency Response: 5Hz - 40kHz.
• Sensitivity: 108db/V@1KHz.
• Impedance: 15.2Ω
• THD: <0.2% (1kHz).
• Jack Connector: interchangeable 3.5mm / 4.4mm.
• Cartridge Connection Type: 2Pin 0.78mm.
• Weight per cartridge: 5g.
• Starting price: $229.

Packaging

The 7Hz Timeless II comes in a black box measuring 156x107x55mm. On the top left is a product description written in white letters. To its right is the brand logo in gold. Underneath are large letters with the model name in holographic ink. Most of the space on the box is taken up by a realistic photo of the capsules on a background of an infinite pyramid base. The back side repeats the top, with an exploded view of the capsules and the specifications in Chinese. Curiously, it refers to an MMCX connection when in fact it is a 2-pin 0.78mm connection. Underneath there are different logos, brand and importer information. When you remove the outer cardboard, you can see that the box is white. The model name is horizontally across the top and underneath is a short description. The brand logo is at the bottom right. All in holographic ink. The contents are protected by a layer of transparent plastic. At the top is the round black metal box that protects the product. Underneath is a plate containing three pairs of screw-in filters. On the second level there is a black cardboard box containing the rest of the accessories and a user manual. In short, the contents are as follows:

• The two 7Hz Timeless II capsules.
• A four-stranded cable with interchangeable 3.5mm SE and 4.4mm BAL screw-in plugs.
• A round metal box with screw-on lid.
• One pair of flat silver interchangeable nozzles.
• One pair of interchangeable silver bullet nozzles.
• One pair of flat gold interchangeable nozzles (screwed onto the IEMS).
• One pair of interchangeable gold bullet nozzles.
• Screw-on plate for three pairs of nozzles.
• Three pairs of 7Hz clear silicone tips with red core sizes SxMxL.
• Three pairs of blue silicone tips and coloured core sizes SxMxL.
• Five pairs of whitish silicone tips and coloured core in different sizes.
• User manual.

Many things stand out about the Timeless II, such as the different mouthpieces, which can be flat or bullet-tipped. Also noteworthy is the polished black cylindrical case, with its pattern of infinite mini pyramids. The exterior of the IEMS also has this pattern. But, back to the case, it is heavy, threaded and roomy enough to hold the IEMS, the cable, the plate with the nozzles and the two pins. Then, the set of silicone tips is the usual 7Hz, plus the new transparent tips that incorporate the brand's logo on their body. Instead of having a tapered tapering shape for easier insertion into the ear canal, they have a rounder, thicker rim and a red core. It is noticeable that the brand has taken into account the trend for special transparent tips and this set is their answer. In any case, both the presentation and the accessories are totally in keeping with the price and excellent.



Construction and Design

The design of the Timeless II is not easy. They are metallic, completely black, with a micro-sandblasted surface on the inside and a mini pyramid pattern on the round outer face. It is a unique product. As I say, the outer face is a disc with that surface full of mini pyramids. Near the edge you can read the name of the model in white letters. The inner face does not occupy the whole space of the disc, but has two phases. One of them is an incomplete cylinder with two intersecting flat sections. What is missing from this thick, incomplete cylinder allows us to see part of the thin disc that makes up the outer face. On the shorter flat section is the 2-pin 0.78mm connection. This is a round part in the centre of which are the two gold-plated connections. There is a red dot indicating the polarity of the connection. There is nothing on the longer flat section. On the surface of the first phase, next to the edge and next to the vertex formed by the two flat sections, there is a letter indicating the channel and three holes. The second phase/step is another thinner disc of smaller diameter. Near the centre, closer to the nozzles, there is a hole. The nozzles are inclined and rise a few millimetres. They are threaded inside so that interchangeable nozzles can be attached. The nozzles are of four types: two flat and two bullet-tipped; two are gold-plated and two are silver-plated. The flat gold-plated nozzle has a filter covering the inside in the shape of a six-petal flower. The silver-plated flat nozzle has a filter covering its interior in the shape of a spiral with a circle in the centre. The bullet nozzle contain sections on both sides with openings towards the inside. There is a small hole in the tip.
The cable has interchangeable 3.5mm and 4.4mm plugs. Both are threadable. The plug sleeve is a cylinder with flat cut-outs and irregular diamond-shaped surfaces in its central part. Its ends are smooth, polished and shiny in pure metal colour. The brand logo is inscribed on the edge near the pin. The inside of the plug is made of black plastic, including its thread. The connection mechanism consists of four gold-plated pins and a fifth hole which serves as a guide. The plug is female and the cable is male. The two cylinders are assembled by means of these four pins and the small guiding cylinder. The cable consists of four intertwined strands. Its sheathing is a dull dark copper colour. The divider follows the same pattern as the plug sleeve, but is about half as long. The pin is a ring of the same material, with the rounded edges greatly reduced. The inner hole is too large and the fit is too slight. The sleeve of the 0.78 mm two-pin connectors has the same shape as the rest of the parts, although they are relatively long. On the smooth cylindrical part near the connectors is a white letter indicating the channel. The pins are mounted on a round white translucent piece with two flat sections on the sides that serve to lift them up. The cable has guides on a semi-rigid ear. The cable is very good, subtly stiff, but still manageable. The design of the whole is excellent and, given its particular shape, it is a totally identifiable and outstanding model. However, it is a slight variation on the shape of the first Timeless, which had a smooth outer face and an MMCX connection. Fortunately, 7Hz have changed the connection interface to my preferred 2-pin 0.78mm.



Adjustment and Ergonomics

The design is not easy, the ergonomics are not simple. At first glance it may seem uncomfortable because of the large flat outer disc, the stepped double-stage inner face and the inclination of the mouthpieces. That slightly sharp-edged disc could touch the external parts of my ear, but it does not. The first phase of the inner face might be too big and annoying, but it doesn't either. Finally, the second phase is the key: it has just the right size, roundness, slope and length to make sense of it all and becomes a surprisingly comfortable model. Timeles IIs allow only one adjustment, with no possibility of rotation. The insertion is shallow. To a large extent, it will be the silicone tips that provide the right comfort and fine adjustment. Otherwise, there won't be much of a solution. I think the ergonomics depend largely on the choice of tips and that the base of the mouthpieces is somewhat short. I could say that the fit is somewhat critical, on the verge of being lost. If an occlusive fit is achieved, even if it is superficial, it can be durable. But, in my opinion, the fit is a bit short, it doesn't have much margin; either it fits, or it doesn't, you have to look for other silicone tips. With my home-made large foam-filled tips I have been able to solve the situation. However, I have had to look for tips with cores that can project them to increase the range inside my ear canal. The surface fit is not sufficient. Well, it is, but it is essential to achieve it.



Sound

Profile

The Timeless II are one of those IEMS that surprise on first listen. The sound is wide, holographic, surround and impressive from the first minute. The profile moves from a W with smooth upper mids with the flat silver mouthpiece to the raised upper mids on its 2 kHz hump of the bullet silver mouthpiece. Each mouthpiece has a slight alteration in the treble as well. Depending on the set point of the four graphs, you can see that the bass is very similar, almost identical, and the differences are noticeable from 1kHz onwards. I consider the default mouthpiece (flat gold) to have the best tuning: a moderate hump at 2kHz and a little more energy in the transition from mid to treble and in the first part of the high frequencies. This keeps the upper mids from being too excited and gives clarity and sparkle in those high notes, to compensate for the gain in bell with more extended energy in the treble. There are mouthpieces that file down the treble and upper mids, such as the flat silver mouthpiece, while bullet mouthpieces raise the 2kHz hump, but offer two versions of treble with less energy. My balance is with the flat gold mouthpieces and the description of the following review will be done with this mouthpiece. My second favourite is the flat silver, which is more relaxed in the second half of the mids.



Bass

Another surprising thing about the Timeless IIs is the bass. Their sonority, vibration, texture, expansion and volume are different from those of dynamic drivers. And on this occasion it's even more apparent. There is a high level of energy, but its vibration is particular and distinctive, and it is also deep. It's a sound that fixes itself in the ears, that the mind absorbs to ask for more, a sound that fills the ear canals and spreads across the inner surface until it spreads through the head. Yes, bass has that sensory capacity that makes it unique.
Also impressive is the restraint, dryness and speed of the bass. I think this is all due to the very low distortion of the driver. The bass is highly accurate and reliable. Texture doesn't just appear, it really has to be in the bass. When the bass is technical and pure, the Timeless seems to reveal itself at that end, becoming extremely accurate and fast. And this is something that very few dynamic drivers in the same price range achieve. The sheer quality of the bass is clearly evident in the very low frequency pure tone test. In the lower note there is that mix of darkness, sensory emission, depth and physicality that come together perfectly. Admittedly, I tend to miss that physical, volumetric and powerful property that emanates from the best dynamic drivers. But the sonority of those difficult-to-reproduce lower notes, the absence of colouring, the scarcity of unwanted ripples and the absence of additional distortion-inducing vibrations are commendable. Without a doubt, this is some of the best bass I've heard in planar systems.
And finally, in the dirty, complex, unfiltered bass test, the Timeless IIs demonstrate that the driver is specially designed to show its prowess in these difficult-to-reproduce passages. Thanks to all the properties I have listed in this section, the reproduction of the rawest and dirtiest bass lines is fluid, slightly smoothed, highly detailed, and shows that ability in texture expressiveness, layering and also in respect for the rest of the frequencies. Spectacular.



Mids

As is usual in this type of tuning, the first half of the mids is somewhat lean. However, the level of precision is very high, something that also translates into a timbral adjustment in the same range. I tend to miss a little more body, physicality and a more marked base in the male voices. But its execution is so complete that it is almost offensive to put any criticism on it. The balance between that base, its development and the harmonics is synonymous with naturalness, fidelity and adjustment to reality, an excellent sum that is only marred by that slight remoteness that I feel and that I would like to be manifested in a closer and more forceful way. The result is very well-executed, very rich voices, lacking nothing and totally homogeneous throughout the range. The only drawback is that I feel them at that middle distance that prevents me from enjoying them in all their splendour. On this occasion, the instrumentation is on a par with the vocals. But their great capacity for layering, separation and level of resolution only magnifies the sonic space to showcase everything with an expressive exuberance and a richness of detail that is almost overwhelming for this price point. Turning up the volume with the Timeless IIs is thrilling and almost a vice thanks to the eloquence of their mids.
Female vocals with the Flat Gold filter are not as high as one would expect from the graph. They maintain a higher point of presence and are a little closer to the listener. This gives them a prominence within the sound that allows them to demonstrate their full vivacity, breadth and level of definition from start to finish. In this way, the passion that the Timeless IIs bring to the midrange is evident.
The Timeless IIs also demonstrate that it is possible to be clear, bright and obvious, keeping sibilance well below predictable, almost tending towards zero. That can mean sounding a little dry, a little more restrained, not as extended, but without falling into softness. The Timeless IIs don't feel soft, but rather seem to apply a higher speed when it comes to executing these sibilant passages. That sparkle, that flare is there, but contained and condensed; yet it is distinctly explicit and audible. Perhaps another of the most remarkable abilities of this new model is precisely that ability to execute all the music in the shortest possible time so that it all sounds at once, albeit in a totally descriptive way. It is highly enjoyable.



Treble

Planar treble has been controversial from the beginning, as planar drivers are able to offer a very wide extension while maintaining a very homogeneous, balanced and extended energy level in frequency. This is also compounded by the timbre of planar loudspeakers that some criticise. In my opinion, the Timeless II's have reduced the negative feel of that timbre, while maintaining a high and restrained energy level in the high end. I can't say that the treble is smooth, but it's not harsh either. They are planar treble of a new generation, very precise, moderate in the expression of brightness, not quite crunchy, not quite sharp, but retaining that extension, balance and homogeneous amount of energy to describe the high end very faithfully, realistically, even naturally and attractively. It may still have its detractors, it may also have some who are looking for more edge and to be more penetrating. But, in my opinion, the Timeless IIs present their own version of an enjoyable, technical and representative high end, without the need to be soft or rounded. And, of course, the level of extension, even the amount of air, is very good. Quite a luxury.



Soundstage, Separation

One of the first things that strikes you about the Timeless II is its soundstage. We are all used to describing scenics as wide, voluminous, volatile, gaseous, etc. With the Timeless IIs I realise that this is indeed the case and that these words make sense in a $230 IEMS. The volume it generates is superior, the space it occupies is vast and the projection of the notes is far-reaching. This is how the sound spreads further than in other presentations. The best thing is that the sound is not ethereal or gaseous, but remains attached to its base, to the lines, to the layers, to the music itself. The sound is considerable and deep thanks to the imposing bass and very rich due to the high quality of its mids and highs.
On the other hand, it is not an analytical sound, although it does respond very well to very expressive sources, demonstrating its high capacity to showcase the excellent level of resolution it possesses. Thus, the latent capacity and potential for analysis can shine through without being cold, clinical, sharp or inert, as the Timeless IIs are able to breathe magic and passion beyond detail and resolution. They are certainly exciting in this respect, which adds yet another reason to consider them addictive.
Finally, the image is very accurate. With such a fast, efficient and low-distortion driver, the note generation is very precise and rigorous, and you get a vivid, detailed, concrete and determined image, where all elements have their space thanks to the wide separation and the wide scene, as if it were a feedback process.



Comparisons

LetShuoer S12 2024

In my opinion, the limited version of last year's S12s are LetShuoer's best planars. This is a limited edition, which is now out of stock. As a good limited edition, it has an appropriate packaging for the occasion, where gold is the protagonist. The price is $199. Both come with modular cables: the S12s have three connectors (2.5, 3.5 and 4.4mm), while the Timeless IIs only have two (3.5 and 4.4mm), but their anchorage is more secure thanks to their screw mechanism. As for the driver itself, the S12s have two thickly wound strands, while the 7Hz has four strands. I have no complaints about these drivers, but the 7Hz cable is more manageable. Both come with three sets of silicone tips, with a special clear edition on the 7Hz side, while the S12s come with one set of foam tips. They also each come with a cylindrical screw-on case. The S12's is plastic with a black rubber coating, while the 7Hz's is metal and the lid is the same pattern as the outer face of the IEMS. The case of the 7Hz is a bit taller, but the diameter is the same. But there is one obvious thing that the 7Hz has that makes it better: four pairs of tuning mouthpieces. With the Flat Silver mouthpieces, the curve of both models is very similar, but with the standard Flat Gold mouthpieces, the Timeless IIs have an extra clarity that makes the S12s seem darker, even a little hazy. But before talking about the sound, there's the ergonomics: neither model is particularly comfortable, but the smaller body of the S12s fits my ear better. It's worth noting that both models have short mouthpieces and you have to play with the tips to find the best fit.
Both need a good amount of power to shine, and I would almost say the same. I've commented that the profile of both is very similar with the Flat Silver mouthpieces, but that the Flat Gold mouthpieces give a clarity advantage at 7Hz. They also have a better treble extension. The sound of the S12s is denser, with a more compact, fuller-bodied bass. In the pure tone test, the 7Hz bass is more natural, with darker colour, more realistic behaviour and greater depth. The S12s have a more undulatory and vibratory character that is clearly perceived, as well as a certain level of colouration that shifts them towards more audible and less deep or sensory notes. The Timeless IIs are subtly faster, more concise and technical, while the S12s are more elastic and rubbery, hence the denser, more opaque feel. I think the 7 Hz have some of the best planar bass I've tried.
The male vocals are denser on the S12s, but on the Timeless they sound more natural, free, clearer and cleaner. It is true that in the S12 there is that base that I like, but in the Timeless there is that crispness that offers a more transparent sound and something more technical, precise, concise and resolute. In the second half of the mids there is that higher, more energetic and clearer feel that the 7Hz has. It is clear that the flat gold tuning helps to gain transparency, but it also feels more precise, fine and technical, even with more separation and a more open stage. All this without sounding analytical or cold, or causing wheezing.
The treble of the S12s is very good, but the 7Hz is better, with a more accurate timbre, more sparkle, extension and even finer and more natural. This is no joke.
The greater transparency of the Timeless gives them a wider soundstage, a better sense of depth, a darker background, greater micro-detail definition and greater separation. The S12s are denser and have the layers closer together.
The LetShuoer S12 2024s are excellent IEMS, but what 7Hz has achieved with the new Timeless IIs is like a punch on the table.



Conclusion

The 7Hz Timeless IIs have been a long time coming. I think they were announced a year ago, but for some unknown reason they were not released, so what happened, perhaps they were not up to the brand's own expectations? Whatever it was, it was well worth the wait. The 7Hz Timeless II are 5-star IEMS, a real treat for my ears. The sound is powerful, based on a bass with an imposing force that reaches a surprising level of sound pressure. They have possibly the best bass of any planar IEMS I've tried. The mids are extremely rich, highly expressive and full from start to finish. As for the treble, 7Hz has managed to find the perfect balance between energy level, sonority, timbre and naturalness. And let's not forget about the size of the soundstage, the sense of transparency, the level of detail and resolution, the potential for improvement over superior sources, the level of precision and the very low harmonic distortion value. Undoubtedly, the 7Hz Timeless II may become the new reference in the segment of planar IEMS for less than $250 and one of the best models in that price range.



Sources Used During the Analysis

• EPZ TP50.
• ifi GO Link Max.
• iFi GO bar Kensei.
• Tempotec V3.
• Burson Audio Playmate 2.
• Aune X8 XVIII Magic DAC + EarMen ST-Amp.

Purchase Link



You can read the full review in Spanish here

General Info/Comfort/Build
7Hz Timeless, a name that i believe no one who’s active in the Chi-Fi community wouldn’t know, it made a splash a while back with the first Chi-Fi Planar IEM, not just that, it also received a great deal of positive feedbacks (of course, there are bound to be some negatives as well as we all hear/perceive differently). Today, I have here with me the Timeless II, which is the 2nd generation of Timeless. So what changed? Quite a few i would say, the driver for one as well as the internal acoustic system(venting,enclosure, etc) swappable nozzle as well as the tuning. The shell's size is more or less similar, and I do not have any comfort issue with it other than the nozzle’s length, which may or may not be a problem for some, but not an issue for me.
7Hz’s packaging presentation is more or less similar across their flagship’s lineup, very presentable and it does not look cheap at all. The bundled cable’s material is 7N Single Crystal Copper, it looks very high quality and it comes with a modular plug. 3 Types of eartips, as well as a full metal storage case, the top part of the case’s design is similar to Timeless II’s faceplate



Gears used for this review

• Timeless II in stock form (stock cable in 4.4 termination and stock eartips)
• Fiio JM21
• Aune S9c Pro + Neutron HiFi Isolator V1
• Dunu DTC 480
• Neutron Hifi DAC V1

Foreword
My review is solely based on what I hear via my equipment and I never consider my reviews to be objective in any way rather a subjective approach. Do take into consideration that everyone’s ear anatomy is not the same, so the psychoacoustics perception might be different as well, but i believe it will not stray too far



Sound Impression (Silver Bullet Nozzle)
Timeless II’s sound profile is leaning towards slight warmish with a slight boost on the sub bass, being a planar IEM, the planar timbre is very very minimal to say, i have let several friends of mine to try and one of them even asked me if this is a dynamic driver IEM? Note weight is good and it doesn’t sound thin at all

Bass

• Bass on the Timeless II is hard hitting, fast, and tight,especially satisfying when listening to Metallica’s track, Master of Puppets, Lux Aeterna
• Speed is good which is expected from a planar driver
• The bass has got a satisfying texture, especially evident on the double kick drum, very very pleasant experience which got my foot tapping along with it
• The sub bass rumble is nicely done on the music, i took a step further and played a trailer of Star Wars where the lightsaber fight scene and swinging the saber around produces a very ecstatic deep rumbles, and this is reproduced in a very “fun” manner listening to it via the Timeless II
• The bass is fun overall but certainly not for bassheads

Mids

• The mids are neither too forward nor recessed(also depending on the nozzle you are using)
• Male vocal has got a good texture to it, doesn’t sound thin or nasally, both Sam Smith and Zhao Peng’s vocal sounded very pleasant
• Female vocal such as Teresa Teng sounded sweet and has got texture to it, a slight boost on the upper mids will give the female a little boost, but overall, it is good (the gold bullet nozzle does favor female vocal compared to the silver bullet nozzle_
• Vocal positioning is not too laid back or forward, i would say it is just a few steps from your face
• No bass bleed from the mid bass to the lower mids, transition from the low to upper mid is also smooth and gradual rise, certainly not shouty at all

Treble

• Treble on the Timeless II is very well done in my opinion, it is detailed, airy and also smooth at the same time, impressive
• The treble is non offensive and never sibilant, i have tried a wide range of music with it and even turned up the volume (for a short period of time of course), it remained easy on the ears all the time
• The note weight is also good in this range as the instruments in this range sounds full

Soundstage/Imaging

• The soundstage is nicely done and sounds quite big to my ears, good depth, width perception, a little lacking in terms of height perception, but overall it is quite good
• Imaging on the other hand is excellent, well layered and instruments can be pinpointed easily

Driveability

• Timeless II is not hard to drive, it can be driven easily by most of the dongles out there
• It does however scale with better source and also power, i observed a better bass response in terms of control, dynamic, as well as soundstage when it is being fed with more power and also better source
• This is not to say that you need an amp to get the best out of it, rest assured that it is already great sounding right out the box, but amp it just to fully maximise its potential

Comparison
Timeless AE

• I do not have the OG Timeless for comparison hence this comparison happened because i only happened to have the AE’s version
• Timeless AE’s Bass is slightly lesser in terms of quantity, but bass quality and control is quite good
• The upper mids are slightly more pronounced compared to Timeless II
• In terms of detail retrieval, Timeless AE falls behind the Timeless II, also better separation as well as imaging
• In terms of technicalities and overall tonal balance, Timeless II is a clear winner

Letshuoer S12 2024

• Tonaly, Timeless II and S12 2024 are quite similar in a way, timbre performance on both are quite close and also S12 2024’s note weight is slightly thicker
• Bass on the S12 2024 has more quantity compared to Timeless II
• I would say the overall performance are quite close to each other overall, somehow Timeless II pulls itself ahead by having swappable nozzle which allows the user to change the sound signature to his/her preference

Final Thoughts
There are plenty of Planar IEMs out there at the moment, i personally have tried several which i compared against the Timeless II, i am someone who prefers versatility because i listen to a variety of genre, Timeless II gives me the versatility because i consider it an all rounder which perform really well in most of my library, Metal, Rock, Hip Hop, Jazz, Live recordings and many more, with various supplied nozzles, i can even finetune it to the way i want it or even based on my library, or if you are more adventurous, you can even experiment with the foam within the nozzle and it opens up for more customisation. I am definitely recommending the Timeless II without any hesitation to anyone who’s currently on the lookout for a very capable Planar IEM.

*A big thanks to Linsoul for sending over this in exchange for this review. All thoughts are of mine and I received no monetary compensation nor was I influenced in any way to produce this review.

Interested in getting a pair? Head over to Linsoul’s store to grab one from the link below:

7Hz’s Timeless II - Non affiliated link

7Hz Timeless II :: 14.5mm Planar Driver :: $229

Huge thanks to Linsoul for providing a sample unit for this review.
However, this review fully reflects the my honest opinion without anyone else's interference.

> Link to original review written in Korean

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At the time when the 'Planar IEM' genre was still new, 7Hertz burst onto the scene with the 14.2mm planar IEM, 'Timeless'. It is still often cited as a masterpiece of the planar IEM category, as it was considered to be one of the most refined of its kind.

Quickly becoming one of the leading IEM manufacturers, 7Hz has since followed up the success of the Timeless with a range of other products including the Zero, Aurora, FIVE, and more. Despite this, many were eagerly awaiting a successor to the Timeless.

In fact, a prototype of the Timeless 2 was unveiled once before, in late 2023, but the 'carbon fiber + gold accent' design was not well received, and the prototype was ultimately delayed indefinitely due to harsh reviews from the people who got their hands on it first.

Now, a year later, 7Hz is back with a refreshed Timeless 2 with a new design and a different sound. But what will it be like this time around?




Since this is a lineup that represents the 7Hertz brand, you can see that a lot of thought has gone into the product packaging.

The accessories are also quite colorful.

- 7Hz Timeless II unit
- Monocrystal OFC modular cable (0.78 2pin to 3.5mm/4.4mm)
- 4 sets of tuning nozzles
- 3 types of eartips (11 pairs in total)
- Metal case
- User manual



A metal case made exclusively for the Timeless II.

You'll notice that the Timeless 2's distinctive pyramid pattern of the faceplate, is also embodied on the lid.

They didn't just painted the pattern on the lid, but CNC-machined the height and width of the pyramid, so you can feel the pattern with the tip of your finger.

The lid of the case is threaded so you can screw it on and off, and while I wouldn't expect it to be completely waterproof, it should do a good job of keeping moisture out. There's also a thin sponge on the bottom.

It's a fairly heavy metal hard case, so it doesn't look like it's meant to be carried around, but I really like the unique pyramid design that screams - “Here's the Timeless 2”



This is the bundled cable that came with the Timeless 2. It's much better than the cable from the prototype image.

The cable is woven with four strands of 7N high purity, single crystal, oxygen-free copper wire, a combination chosen to make the sound more transparent and detailed, but also a bit warmer to match the new planar drivers.

More than the use of single crystal copper wire, which is a relatively high-end material, I think many will appreciate the use of 0.78 2-pin instead of MMCX terminals.

I also like the fact that the cable is modular, eliminating the need to choose between 3.5mm and 4.4mm. I'm also less concerned about durability, as the threaded construction gives the terminals an extra layer of strength.



Now you are looking at the units of Timeless II.

It has a significantly different design from the prototype that was unveiled last year. It had a carbon fiber faceplate and a gold accent, which was not well received. It was widely considered ugly.

As I mentioned in the introduction, the redesign took nearly a year and resulted in a completely different look. It returned to a single black color, with no fancy decorations, and the carbon fiber faceplate was replaced with a new three-dimensional, CNC-machined pyramid pattern.

Personally, I think this new design is much better.



It also got the new 0.78 2-pin instead of the spinning MMCX, so I personally found the fit to be pretty good.

Nevertheless, if you were uncomfortable with the original design of its predecessor, it's hard to recommend the Timeless 2 with confidence. The shape and construction of the unit is almost identical to its predecessor.



There are a total of four different nozzles available for the Timeless 2.

- Gold nozzle
- Silver nozzle
- Gold 'Phase Plug' Nozzle
- Silver 'Phase Plug' Nozzle

The gold/silver nozzles have a general shape, and it affects the treble by differentiating the density of the dampers in the nozzle. You may recognize these two nozzles from many of the 7Hz earphones in the past.

There's one part in particular that caught people's attention. It's the round nozzle, which is said to be inspired by the “phase plugs” on speakers.

The smooth, spherical nozzle has only a tiny needle-like hole at the end, and is designed to let most of the sound escape through the side of it, which is quite impressive, and completely contradicts the sort of 'basic rule' that says you need to get the 'linearity of the sound' to get a natural sounding treble.

I was especially excited to see how the unique shape of the 'phase plug' nozzle would bring a new experience.

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Before we get to the measurements and sound impressions, let's take a moment to talk about the prototypes that were unveiled in 2023.

The green graph in the photo shows the measurements of the 'Original Timeless', and the blue graph shows the (definitely not accurate) measurements of the 'Timeless 2 Prototype' that was briefly shown at The Headphones Show livestream.

At the time of the Timeless' success, as it is now, there was a sense that how to tune out the sharp, harsh trebles of planar driver was a major point of contention. This is probably why, while many companies took note of the Timeless craze and introduced their own planar earphones, but only few of them succeeded.

7Hz seemed to be aware of this, and introduced a slightly different tuning in their Timeless 2 prototype. However, people who tried the prototype didn't quite liked it, even wondering if the prototype was defective. The bottom line is that the product was normal.

Shortly thereafter, the Timeless 2 product page started to go down one by one. They postponed the product release date indefinitely and went back to drawing board.

-

Measured with IEC 60318-4 (711) with 94dB(L)@500hz.
The sample used for the measurement does not represent the characteristics of the entire product.

Following Measurements are available at silicagel.squig.link

These are measurements from the Timeless 2. I'll start by describing the sound based on the “Gold Nozzle” that came pre-installed when I first received it.

The newly tuned Timeless 2 seems to have been revised after the aforementioned situation, and rather than trying to do something new, the company seems to have shifted its focus to pursue the sound that consumers loved the most.

“If it ain't broke, don't fix it,” as the saying goes, and the Timeless 2 had very similar sound characteristics to the ‘Timeless AE’, the most highly regarded of the Timeless series that 7Hz has released.

The sound was already well-received, and it sounded as good as ever. There's nothing to criticize in terms of tonality, with a solid bass that stretches all the way down to the ultra-low sub bass, clear and well-defined vocals, and a treble that creates an airy atmosphere.

It certainly sounds good enough to please a lot of people, but it's hard to shake the feeling that it's a bit too much of a 'safe choice' for a follow-up to the Timeless series.



Fortunately(?), the “Interchangeable Tuning Nozzle” that has been planned since the prototype days leaves some room for change.

The most obvious and prominent example is the 'Silver Nozzle', which focuses on lowering the ear gain around 2.5kHz, slightly softening the sound.

It's an option to try if you find the Timeless 2's sound a bit too harsh, but I personally prefer the sound of the gold nozzle.



Personally, I was very interested in the rounded “phase plug” nozzle. I've been noticing this since the prototype, and was a bit disappointed when I first took measurements. I couldn't find much difference between nozzles from the measurements published online as well.

I also couldn't hear much of a difference, except for the nuance of the treble instruments shifting slightly forward. I was about to conclude this review with the conclusion that 'the interchangeable nozzles didn't mean that much to me', and it wasn't until I swapped out the eartips for the last time that I realized that I hadn't really understood the nozzles.

Of the three eartips included in the box, the blue-colored H08 eartip has one characteristic that sets it apart from the other two. When combined with the 'phase plug' nozzle, the narrow core of the eartip was able to block the hole in the side of the nozzle just enough to produce the right tonal variation.




In the end, the most important thing about the 'Phase Plug' nozzles was the eartips.

I still don't know what the difference is between the gold and silver plug nozzles, but one thing is for sure: if you want to really feel the tonal change that the 'Phase Plug' brings, you should definitely pair it with the blue H08 eartips.

By the way, do these measurements look familiar?

If you've been following the eventful backstory leading up to the release of the Timeless 2, you'll recognize the graph above. It looks kinda similar to the sound of the prototype Timeless 2 that was unveiled in 2023, with a lowered mid-high range of overtones from various vocals and instruments. Got goosebumps here.

At the same time, I could kinda hear why the prototype was criticized. Vocals and instruments that used to be crisp and clear are now somewhat muffled and softened, and while I'm sure there are many people who prefer this smoother sound, I do think this is probably not what people want from planar IEMs.

Nevertheless, I think it's a worthwhile approach for those who find flat earphones overly harsh. Personally, I found this 'phase plug' combination to sound better than I initially thought it would, and while it's a far from natural sounding midrange, it's a pretty unique experience that allows you to hear detailed planar sound without the stress.



So far, we've taken look at the Timeless 2, a new pair of 7Hz planar magnetic IEM.

For someone who prides myself on having played with quite a few earphones, I didn't noticed the twist behind its uniquely shaped nozzles and eartips, until I was almost done writing this review, and it seems that no one else on YouTube or elsewhere has mentioned the H08 eartip + 'phase plug' nozzle combination yet.

It's a combination that I think should have been mentioned in the manual or even on the product page. I still can't figure out why didn't they mentioned about it.

I wasn't sure if the Timeless II was compelling enough to recommend to people who already own planar IEM, but now I feel differently.

Basically, you get the 'Timeless AE sound' that many of you have loved, but you also get the IE900-ish flavor from the planar world. The eartips play a crucial role with the 'phase plug' nozzle, and I think you can get a lot of midrange control depending on the eartips. It'll be fun to find your own best combinations.

In many ways, the overall impression is that these are a well-made, masterpiece planar IEM that are a worthy successor to the 'Timeless'.

The circular design of the Timeless series has been kept for better or worse, but I can easily recommend this set to both newcomers to planar world and those looking to upgrade their own IEM.

-

[ Non-Affiliated Links ]

Linsoul : https://www.linsoul.com/products/7hz-timeless-ii
Linsoul Aliexpress Store : https://aliexpress.com/item/1005008118220706.html
Linsoul Amazon : https://www.amazon.com/dp/B0CJR99W83

The 7Hz Timeless II Planar Magnetic Universal IEM
December 12th, 2024

For many of you young whippersnappers the company 7Hz will be a known entity, and not only known but a household name. In 2021 7Hz released the 14.2mm Planar magnetic "Timeless" IEM. The Timeless gained a reputation for best technical resolvability under $300.00. Not only was the Timeless IEM incredibly popular, it jump started the whole 1st Planar IEM craze. I never got a chance to hear the Timeless Planar, but don’t feel sorry for me as this is my 10th 7Hz review. I have reviewed 9 different IEMs and a Bluetooth Dongle. Looking back, probably the most high profile release for 7Hz besides the Timeless IEM is the 7Hz Zero. Coming out in early August of 2022 the Zero, much like the Timeless, offered the public at large a way to access the audiophile IEM experience for unprecedented value. Well………$19.99 was the original 7Hz Zero price, they still make and sell the Zero but the price has gone up to $25.99.



Right at the end of 2024:
A new chapter in 7Hz history is upon us all. Yep, they finally came out with the Timeless II. As such this 2nd generation Timeless was already first introduced a year ago in 2023. But due to public opinion 7Hz went back to the complete drawing board for a redesign. I’m guessing 7Hz just wanted the Timeless II to be as good as it could be? We went from a carbon fiber look (of the original Timeless II) to an all aluminum shell. They then completely redesigned the driver and threw on a 2Pin instead of the MMCX connector. Now just for the record I never heard the Timeless, or the Timeless blue Timeless AE edition, or the 2023 Timeless II first edition. But I have heard 14 other Planar IEMs, so I figure I have enough experience to judge this guy?

I only have one small issue, and it doesn’t deal with sound.
While the included plug comes in 4.4mm, an inner barrel of a 3.5mm can be placed into service by screwing the 4.4mm barrel out. My issue is there is only a very small indentation “dot” showing if the replacement polarity is in alignment. While sure there is a very small gap that the “bump” dot creates when not aligned correctly, except maybe some would miss this, and the instructions have no information at all about usage of the Timeless II……………….not even anything about how to use the replaceable nozzles. And even with the 4.4mm plug perfectly in place, there is a slight leaning (very slight) off to one side when placed into your DAP, which you only notice upon rolling the plug 360 degrees. I know these are small things, but everything is important in a review. My only other nitpick is the 4.4mm/3.5mm plug is incredibly shiny and slippery, and even though it has character-lines, it is hard to get a grip on to remove from a device? Where the friction lines go up and down, not side to side. A small but a noticeable thing if you are still plugging in cables a bunch.


The Timeless II sound:
I have to say the Timeless II was a little confusing, and not just at the start, but though-out this review. Why? I mean the sound was always even and balanced and showcasing the attributes that I will get to in this very section. But, there was an ability to remain in character, then showcase the style of character exhibited by each source. What I mean is that when I thought it was the Timeless II responsible for the tone, all that I did was change sources and found a new place to live.

Each was wonderful, except different. An example of this concept was changing to the WM1A DAP, a midrange forward device, and while using the included cable I switched over to the thicker ifi hip-dac 3 off a laptop. Now the sound was strangely extra thick and yet still beautiful and not missing a thing. But in this case the best part was also enjoying the soundstage given off by the hip-dac 3. The fact that the Timeless II was both revealing of source yet correct sounding both at the same time. Then I put on the hip-dac 3 effect of XBass®!

Now I will be the very first to admit that I normally use such effects with caution, as at times (with certain IEMs) they can sound over-the-top, but not here. Yet the extra bass effect placed onto the files were a thrill, and genuinely noticeable.

Why?
What I’m guess is this has to do with stage displacement and reactionary abilities of the 14.5mm driver? That especially vocals were extra big, which I talked about in my first impressions, a section to follow at the end of the review. Now yes, there was a noticeable change moving from the hip-dac 3 to the Sony WM1A, yet both were fun…….that’s really what I’m trying to say. Fun because of the dramatic giant vocal stage, that and on other songs the bass was fast, tight and just as dramatically providing entertainment here!

I guess that is what Planar IEMs do, as these items of size, were both clear, yet moving in the most natural of ways?




Forndom
Mothir
Urd
44.1kHz - 16bit

hip dac 3:
Laughingly I found a slight dose of magic here with the ifi hip-dac 3. Yep, thicker vocals and drums. Just the hip-dac 3 and my laptop? Better than maybe the extra detail of the Sony WM1A?

Where here even with the effect switches off we are awarded with giant vocals, giant drums and………..I must be talking like a broken record?

Sure this song is an amalgamation of vocals and drums, yet there are stings later on too. I’m sorry it is rarely that I’m brought to tears by a $229.00 IEM? Maybe it is that the music is new, maybe it is the hip-dac 3, maybe it is the coffee I just had?

It is the effortlessness of the vocal fall-off, that the timbre sounds great! Now switching on the XBass and Power Match buttons…………….. the ifi hip dac 3 enabled an emotional and rewarding experience. And while I have a lot of ground to cover in this review, let's just say I found a home here. Yep, the thickness of the hip dac 3, the sound of the included cable and the overall tone of the Timeless II. Yep, folks this is real, real life…..it is almost 2025 time for great IEMs to only cost $229.00!



Myrkur
Folkesange
House Carpenter
48kHz - 24Bit
1)
Here we are trying out the ifi hip dac 3 again. Now I know this reads like an advertisement for the hip dac 3, only if you were me and you were listening at this time, you can feel the synergy here. Sure this is personal preference too, but later when you get to the cable rolling section, you will see how I went and chose the thickest sounding cable too.

That when going this direction often in audio, we risk the sound becoming too dark or boring, but not here, in fact that is one of the main concepts I want to get across here, is that the Timeless II is well rounded in my uses, allowing for many flavors on sound to be accepted and enjoyed! Also I feel good recommending the hip dac 3 as it is priced equal to the Timeless II.



2)
The Sony WM1A and included cable with the new NiceHCK C04 ear-tips:
Here we are offered more itemization, a clearer ideas of music with a pushed-out midrange over the hip dac 3. And sure this is not a review of source choices, we can totally hear how it is different and rewarding just the same. To where that is really what I’m trying to say here. While slightly thinner in texture with the Sony WM1A, the take on tone is just as good, only different, yet in a good way. I kind-of look at this as probably the older style of analytical audiophile would gravitate towards the WM1A, and yes there is more detail, the hip dac 3 was thicker and offered a meatier idea of the same song, yet neither were at all wrong, just different!

3)
Moving over to the Sony WM1Z and included cable with the new NiceHCK C04 ear-tips:
Now really the whole package is coming together here, more than I would have guessed……..as I tried this before 5 days burn-in was completed, yet now the sound is fuller and holding extra harmonics. To where here vocals are very full really, the best of both worlds of the thickness as the hip dac 3, only not as thick somehow, yet holding the details upon hearing the WM1A, yet with added low-end that seems to scale up to the mids too? Where an added bonus is the spacial treble holding extra guitar strumming detail up-top!

Wait, what?
Oh scheiße. What? Urd is upon us one more time!


Forndom
Mothir
Urd
44.1kHz - 16bit
Yep, I had to, I know you understand when you get a taste of perfection, you pursue it, you run after it. Like going after a young bride to be………….the goal was pleasure and an unescapable curiosity. Do you remember those days? That is what life is about! And again I am in tears once more. I can’t even write because my eyes are watering?

Rare for such artifacts of IEM try outs here at Redcarmoose Labs. Now sure maybe I simply found the song, except aren’t we always looking for THAT song? Yes, this is a $229.00 IEM hooked with the included cable to a way more expensive DAP, yet it is old and worn-out…….but still good and acting like it was made yesterday. At least today it is.



OK, I will disclose complete sound details here:
Yes, the Timeless II can be slightly thin depending on the source and recording. Only it is not exactly that, there is a balance, to where the thinness is actually fastness and responsibility to the original file, call it provided tone I guess. Well it was the thickness of the hip dac 3 that did away with such fears. And remember the WM1Z is also thick in the lows, except it has bright highs that counteract such things. It is maybe (slightly) my hearing, as really this is no big deal, it is just this is a review and I have to point out how the Timeless II is not perfect because nothing is perfect.

So it is unashamed and honest to a fault about both source texture and file quality. The Timeless II is more of a microscope that I gave it credit for at the start.

And I hold this slight thinness as both an attribute and a focus of how this is truly some of the best Planar response I have ever heard. It is just because of the Timeless II temperament we can travel around to different sound locations with different files, sources and cables. Even ear-tips are dramatic changes. I mean when it gets down to the nitty gritty we are hearing the tone of the file/source. You see that is where we are at, complete transparency, whether or not you want it or not. Now I said complete transparency, yet it is more about tone transparency, as while there are great fulfilled details present, they are more of detailed layers and not so much the tiny-tiny dot like formations of BAs. But nonetheless, it is the bass detail and the separation into the stage of the midrange imaging in how it is off on its own, above and beyond what the low-end is doing. And the lows, one of my best parts to love about the Timeless II. That we are given unarguably the clearest style of bass, in that not only does it hold authority, it is clean and fast. I guess this is what Planar bass is, and you would think I would know after 11 Planar IEMs, it is just we are always learning. Though to be a little more critical here……….the outcome of this bass is also totally dependent on the recording. Meaning the Timeless II is so clear and transparent, that get it a good recording of good bass, and it will transfer that personality, but get the Timeless II an epic level of recording and prepare to be blown-away.

Treble:
Airy and really composed of sheets of detail. These sheets still hold much of the information in contrast put out by BAs, only it is larger. Flat shaped is how I would describe this phenomena. Never strident or sharp, and the treble imaging sits slightly closer to home that what could be found with a Hybrid BA response, but don’t ever let that discourage you as these sheets hold their own magic. Yep, to where you will never be questioning how the treble plays out. That while maybe a smidge of off timbre, really it is nothing to write home about, and had me even question the effort to talk about it here?

Midrange:
The midrange is really where all the information is. And the Timeless II reminds you that probably 80% of the musical information is in the midrange? It is just (a lot like the separation) found in the lows that creates the lower stage, this midrange ability is truly about formations occurring inside the midrange stage. It is how at times you shake your head that this all is going down so big and fabulous. Sure I sound silly, sure I sound over-the-top, but simply get the Timeless II and see why I’m notating such IEM behavior.

Look, later I will get to the comparison section, and we will investigate how the Timeless II is different from (a few) similarly priced brothers in the IEM world, and even more expensive 7Hz offerings! Yet the Timeless is its own gig, its own style of attributes and the midrange and timbre take a big portion of the credit for this level of entertainment. It just sounds real, big and real! Yes, the midrange is held captive inside this big stage.

Bass:
The bass you ask? Some of the best I have heard at any price point. More on that in the side-by-sides.......

Stage:
The very first 0.5 seconds I had the Timeless II in my ears the stage was only for 1/2 a second, not large? This was maybe driver things or mental things, because from then on out, the stage has been one of my most favorite parts here. It is just the individual sound creations are well separated and living inside their own area. Nothing is missing, and nothing is overlooked. Now here is the different part of this review. Remember how I said the file source was totally important? Well, with stage ability we can go and look (to dig-up) the oldest and worst stage possible from the source file. An underground MP3 from a home recording is found!

And while I don’t want to ever not emphasize the importance of the song-file-stage in audiophile listening. Lesser quality files held a stage outcome exactly like cellphone output, which I will get to later in the review.

Pace:
Probably one of the easiest attributes to report on here? Just that when you take and make the bass clean, and take away any of the lower midrange murk, what is left over is a wonderful brisk pace held. The actual frequency of the bass never seems to touch at the ends. Allowing for brisk and well imaged pace, especially with your best files.

It is the bass presence into where it is found inside the stage creation, that due to placement seems to make the stage even better, and resulting pace even better. I know this may sound like nonsense, but that is how I perceive it?

Planar timbre:
Sure there may be a slight wash of Planar timbre? This is perceived to where instrumentation can come-off slightly higher pitched than with other IEMs. Yet a solution (even though a mask) was to use the Timeless II with the hip dac 3 as a way to add extra warmth to enable a golden light from beneath to diminish a section of such occurrence.

That while just a smidge off at times, this really was dependent on the style of file you chose. As I went back to OSTs and listened to violins (while maybe there) in no way was it distracting to the entertainment.

Naturalness:
Probably as far as Planar go there was a divine naturalness that helped you feel a music connection, to where especially with how drums sound, you were enlightened thinking, this is just how they are? Really with the whole structure of tones and stage, it is the timbre which has me focus a little more. I’m a guitar player, so I focus in on that tone in music, and this is a mental thing, in that if you start to concentrate on it, you notice it more, but if you concentrate on drums or bass it goes away. Also vocals seem to be affected the most by this timbre business, yet again it is not an issue unless you mentally make it one, but there is a little I would say.

Drivability:
Yes you can use standard cellphone output. To where sure 7Hz has a dialed the tone with how the replay is thick and rewarding, it is just after using DAPs or extra devices like the hip dac 3, they (in-turn) are giving a clean window into the mix more.

Yep, an audiophile IEM like the Timeless II will offer a deeper window into the character and resolvability of your source. What that means is you can hear how a standard Samsung cellphone will create a background.......how the differentiation of image elements are created, but not holding all the contrast/details available from a better source. In a pinch there is nothing wrong with using a cellphone, nothing strident or even murky. If you wanted to get the Timeless II as the first audiophile purchase, and later upgrade to an audiophile source, that would be a way to go.

Only get the source as soon as you can, as again you will be blown away (by the jump) an audiophile source besides a standard phone. But in a nut-shell, yes the Timeless II is in the harder to drive section of IEMs, yet there seems to be none of that foggy low end when not driven well?

Meaning with a cellphone we still had good pace. But the Timeless doesn’t get super super loud from a standard cellphone.


Comparisons:
ZiiGaat X HBB Arcadia Hybrid v 7Hz Timeless II Planar from my Arcadia review a week ago.

“ZiiGaat X HBB Arcadia Hybrid v 7Hz Timeless II Planar:
The Arcadia a 3 Knowles BA and 1DD:
Actually I did this comparison section at the very end of the review timeline. Doing it last seemed to send home all my ideas and concepts regarding the Arcadia IEM. And since these ideas are of utmost value, I figure I will put this comparison at the front. Both are almost the same price as the Arcadia is $199.00 and the Timeless II is $229.00. Now normally I like Hybrids more than Planar IEMs. It is just as everyone knows, tune is more important than methodology of build at times.

There can also be a personal affinity to a combination of tone and technicalities, which results in maybe liking the Timeless II bass better because of the amount, but also its pace character………….do you see where I’m going with this?


ZiiGaat X HBB Arcadia Hybrid v 7Hz Timeless II Planar:
The setup for these tests is the Sony WM1A with MrWalkman’s firmware, the included cable on the Timeless II, and the 4.4mm SIMGOT AUDIO LC7 on the Arcadia, both using the new NiceHCK C04 ear-tips. Giving a word of defense for the Arcadia, it is also very possible to gain a preferred response with the use of EQ. Now typically I’m not a big proponent of using EQ as I feel one section of response artificially altered leads the way to perception of other aspects of the signature...........left changed. But here as an example the EQ in the treble and vocal region has an Arcadia profound ability to add sparkle just by tweaking the EQ up. It is the inherent ability of the 2 Knowles BAs to all-of-a-sudden change to the brighter input signal. Also of small consequence actually the Arcadia was slightly better fitting, yet both were totally comfortable. The Timeless II comes in at 6 grams a piece and the Arcadia 4 grams each. With that said, the lows are probably the first most noticeable difference between the two? But of course there is more to it than that.


ZiiGaat X HBB Arcadia Hybrid v 7Hz Timeless II Planar:
The lows are faster with the Timeless II that and vocals come forward to exclaim their presence of space stolen over the Arcadia. These vocals with the Timeless II seem to take on a more spacious and detailed idea, literally filling the stage with extra harmonic overtones, yet slightly thinner. Yes, the whole Timeless II sound is thinner. More spread-out into the side-by-side actualization of vocal overflow. Little treble elements are too created by the Timeless II traveling farther out into the stage, fully apart from the center held focus to surprise. Now as much as I like the Timeless better, it is also not perfect.

The Arcadia is louder at the same volume, and preposterously included bass, that after a while you realize that this may still be a style of low-end that many like, including yourself!

Today the Arcadia sounds better than it ever has in my four days of writing this review. That if we as reviewers were to come clean about doing reviews, each day can be slightly different as to how we interpret sound.

As readers we don’t want to waste our time reading subjective reviews, as we want cement objective answers, and we want those answers to be clean-cut and simple.

Truly in many ways these two IEMs are opposite, in that the Timeless II is faster and more mid-centered and the Arcadia is more L shaped and thicker, yet there is a place for both to win-out here. And truly if I was to be honest, having both would cover a lot of bases. Probably from memory the impression I'm left with is that neither is perfect, but the Arcadia holds those deep lows that could be sought after in the IEM community, and such thickness travels even into the midrange and vocals, showcasing a more dense Arcadia stance.”

Comparisons taken to the next level:

First row left to right:
The 7Hz Timeless II and 7Hz Aurora:

Second row left to right:
The NiceHCK NX8 and NiceHCK F1Pro:


7Hz Aurora:
Starting off with a bang, the 7Hz Aurora is really one of my most favorite IEMs of all time, regardless of cost. At $399.00 the Aurora delivers as far as I’m concerned. With 1X 12mm Composite Dynamic Driver, 2X custom created BA drivers for the midrange and a 1X 6mm micro Planar driver for highs the Aurora is the ultimate Hybrid! And while the Aurora came with a doozy of an included cable, I’m in fact going to use the Penon Pyramid VI cable for all of our side by sides. HAHA I’m really having fun doing this. More bounce and even faster pace, plus the separation that only comes with a Hybrid, let alone this is a strange open back, ventilated fiasco. To where the Aurora is thinner offering less bass action and due to that an even more wide midrange action.

Where the Timeless II is offering-up a lesser stage and of a less energetic treble luster. But make no mistake the Aurora is just like its name, a departure into the light, an outsider almost of both critical information and luster, asking for maybe a select few (including) myself to adore. Really both have their place in a collection, though after all this time since the Aurora review and my time away from it, the slightly duller Timeless II is actually more well rounded and would probably appeal to a more broad fanbase? Sure after the Aurora effervescence the Timeless II is a slight downgrade, though of a more fully realized Timeless II bass section, to where the Aurora left the bass faster and of less authority and pounce.



The NiceHCK NX8:
A 6BA, 1DD and PZT Hybrid..................
Why would I do this? Well kids………..they are priced almost the same and both just came out, and the little known fact that both hold a place in my emotional heart. Why do I do this to myself, why do I do this to you, my fine reader? Wait, at first I thought the NiceHCK NX8 was better, then I went back to the Timeless and changed a few more songs, then I switched cables up a few times. OK, back to the original Pyramid VI cable. Jeez, this Timeless II is big sounding. It is big in how the midrange has this girth of stage realization. And inside of that stage is all this fast yet thick sonic fall-outs………happening every split-second. The NX8 is more regulated into a slightly brighter imaging of items on the outskirts found in the midrange, all those 6 BAs gotta do something here!

While the stage is actually bigger in the NX8, there is also not as black of background found. Yep, where the Timeless is slightly more low key, any tone down here is the finite difference in comparisons, and in no way would anyone say the Timeless is toned down, but in this comparison it is slightly. Though I have to say the same thing I said in my NX8 review.........that I would be happy being left alone with either the NX8 or the Timeless II out on a trip away from all my IEMs, yep these two are the next level here, I promise you that fact!

Where it comes down to the NX8 offering an extra air of effervescence into where the high-up treble PZT is found, yet the Timeless II is more real sounding, and holds a level of wholesomeness that the NX8 can’t touch. Yet the stage held with the NX8 is bigger therefore exciting in what it does. Sorry I’m like a kid in a candy store here!

These are both world-class and you would be happy with either. The NX8 is louder at the same volume and in a way has that more energy disposition, where the Timeless is the voice of reason and is simply delivering the facts and the NX8 is over hyped-up, but we love the enthusiasm given out! Just get them both if you can, I promise you will be thrilled (by both) to no end! Really!


The NiceHCK F1 Pro Planar:
More lower midrange, lesser mids than what the NX8 or the Timeless II did. While almost slightly warmer, yes it is warmer than the NX8 and Timeless II. The difference here is the low end in comparison to the Timeless II, that the Timeless II drops are faster, cleaner and not as murky. Yet there is also this side effect of the lower midrange extending outwards into the stage, where the Timeless is pulled back into lower midrange and offering more clarity across the board, to where even in the midrange and treble there has been a veil lifted to where the Timeless II is offering less clutter and more clarity, with additional more sculpted bass allocated into its very own Timeless II zone. It is these bass advances that twist thoughts and partake of your emotional excitement. To where the F1 is still exciting but thicker and holding a denser, more dark and slightly less itemized events. Here the Timeless II has a more careful style of bass, that is better defined and faster into how it is created. Yet those bassheads may choose the F1 due to pure thicker bass energy? And remember this never takes away from the Timeless II, as in general it is also thick and fluid sounding................as one of the best traits it has!


Cable comparisons:
A lot of the time changing cables gives me a better window into an IEM’s character. I went and did around 20 cable changes, and in-between those changes I rolled in the included cable at times just to get a feel for what was going on.

Let me say the included cable has had a lot of thought put into it. Included is a 7N single-crystal copper affair, and really the included cable was slightly hard to beat. Meaning I hear where the 7Hz company was going with this. Now in rolling cables both the soundstage changed in the way instruments were positioned, the overall tone changed slightly and with that the bass was either emphasized or slightly held back.

And just like the three other choices of replacement nozzles to move to, the Timeless II had a way to remain much like itself. But there were differences and better cables and lesser cables in use.

Also before the test I rolled the nozzles and ear-tips and eventually landed on the regular standard nozzles that come with the IEM, and the new NiceHCK C04 ear-tips. I ended up using the Sony WM1A DAP, and tried the HiBy R3 II but enjoyed the extra stage the MrWalkman’s firmware equipped WM1A did with the Timeless II.


Top down:
1) Included cable
2) NiceHCK Cyan cable
3) Penon ASOS+ cable
4) Penon ASOS+X cable
5) Penon ASOS cable
6) Penon Pyramid VI cable
7) SIMGOT AUDIO LC7 cable

Every cable either came as 4.4mm or used the 4.4mm modular plug.

1) Included cable:
Really this is how I imagine 7Hz to want the Timeless to sound. Different from a few of the more silver based aftermarket cables I tried, there was a slight smoothness in the Pinna Gain response, that was still accurate and still holding both contrasts and density. But there was more to it than that, this specific cable also had a clarity in the lows.

Now one thing that I concentrated on was just how clear the bass section was, that it became like looking down through clear water, to actually visualize the careful bass response that offered detail and great pace, but also was true to tone in regards to the source file.

I kept saying to myself, that this correct and non-blurry bass focus was one of the main attributes that Planar IEMs did, and with this cable and Timeless II choice, the combo was getting me that detail. Part of this too was the bass soundstage, offering up distance and clarity of positioning.

2) NiceHCK Cyan:
In contrast to the included cable, there was a slight added heft to the lower midrange, and in so many ways I group this NiceHCK Cyan along with what the SIMGOT AUDIO LC7 does. Both the NiceHCK Cyan and SIMGOT AUDIO LC7 add lower midrange heft and slight extra density over the included cable. With the LC7 adding even more lower stage girth both in tone and stage size. Really this could be looked at as adding density and even note-weight, except everything was toned down slightly, or holding slightly less contrasts than the included cable? This tonal idea is maybe slightly boring? So it turns out that the included cable really was not too dark, or low energy in comparison here. That again the included cable went to proclaim the Timeless II as the balance that they were looking for in tune, and the sound that 7Hz felt you are looking for.

3) ASOS+:
I can’t help but notice the silver additive here. And the fact that Penon went and added the “Purple” Palladium 4.4mm (or 3.5mm if you choose) to thicken up the original ASOS cable. Yet there is no stopping the stage additive over the included cable and the NiceHCK Cyan, or LC7 for that matter.

Where normally the ASOS line offers up some extra mid expansion indicative of their character.

4) ASOS+X:
The extra 2 wires made the ASOS+ a whole new animal. This was basically taking the 8 wire ASOS+ and adding 4 more wires. Of course it is a $319.00 cable........around $100.00 more than the Timeless II itself. And……and it is super big in size!

The ASOS+X is so big that Penon didn’t have the idea to make it, it was suggested as an invention by member https://www.head-fi.org/members/bosk.14858/.

But the trick here is it makes the Timeless II thinner in tone, and of wider stage. So you get both size, midrange expansion, critical imaging, yet not as much low end, more of a sculptured low-end. While sure there are lows, but this is a balance thing, that when the stage size and midrange is so enlarged it takes away from the noticeability of the lows. There is nothing wrong with this, it is just very detailed, expanded and wide open, and while bass generations of instruments like kettle drums (timpani) are huge, they don’t quite have all the density of some cables.

Yet at the same time this largeness opens up the stage and gives you a large house to roam around inside of. Plus the more I listen, the more I like it, it is just not the thickest (read heavy) sounding cable today. I’m saying all this but at the same time it really is smooth even in the top end, too! It is just I already know where we are going (Penon Pyramid VI) here, so let’s continue on.

5) The regular first edition ASOS:
It is probably a little redundant to have the original ASOS to test here? But if the ASOS is what you had then you may be curious? Really this is good, and different from the included cable due to an expanded set of images. Especially how the midrange is expanded outwards in all directions. The bass is slightly diminished due to midrange balance, yet the added separation and fun imaging makes this a worthwhile way to go. Tighter bass, more controlled bass…..faster bass and even downplayed bass, yet nothing here sounds off or colored.

6) Penon Pyramid VI:
Hah, I already rolled this in, and I was home, right at home. This is the best cable today for a whole number of reasons. Pyramid VI : 6 shares, 147 cores per share, 882 cores in total cost $419.00.

A $419.00 cable.
Yep it is our most expensive cable in use today, but let me tell you why this works and why it could be worth it to go this route. Different from any cable so far........we have an add of thickness that is actualizing of the vocals. It is a realistic new style of contrast that is effecting sonic outcome.

There is a black background and a deepness of the bass adding a physicality that was not found with the included cable or the NiceHCK Cyan or any of the variations of the ASOS line. This additive is both contrasty yet bigger, thicker and more real in playback, it is everything maximizing the Timeless II and bringing it into how it could be if desired.

And while the Pyramid VI may sound ever so slightly colored at times with other IEMs, it is not here, everything sounds like it was meant to be! I could go on but this is an IEM review.

7) SIMGOT AUDIO LC7:
Here we really find how 7Hz went ahead and provided the goods with original cable as the included cable is better than this LC7!

While the LC7 is great, and I use it more than any cable I have in tests, still the included cable wins out, by being basically clearer. But how that is substantiated Is with extra up-front images, and a cleaner low-end. You would guess the LC7’s extra lower midrange girth would be welcomed here, but in practice the included cable activates the midrange, bringing everything up front into better focus. Of course as with all cable tests, the outcomes could be interpreted differently depending on your DAP, ear-tips and sound signature preferences.

Build:
The IEM build is 100% aluminum and while after testing all these IEMs side-by-side today there were a few IEMs that made me say Ahhhh a little more when I placed them in my ears, than the Timeless II?

Yet at the same time there was nothing uncomfortable about the unusual Timeless II shape. The 2Pin receiver is angled and somehow accepted all my cable rolls, even though by the looks of it, it would not. At only 6 grams a piece the Timeless II is very low weight, and feels great in place. Noise occlusion is remarkable, as I use a room fan to judge the way they block-out outside noise! Even with three vents off the back of the backplate, they still blockout a great amount of noise. Probably the best part of this construction besides what I have already mentioned is the fact that even though black in color, they don’t show smudges or dust. I mean sure the shape is a marketing angle, I get that, and it was an advertisement being in people's ears as they are viewable from far away.

The shape is unusual and while different, it makes the Timeless stick-out among its peers.




If I could make a small suggestion:
Often 7Hz uses the flower shape nozzle ends, and maybe they do something to sculpt the sound? Though if you ever use a cleaning cloth, such small spikes can grab hold of the cleaning cloth and pull the foam and nozzle end-plate out. Not a big deal as you just replace it, but I notice the silver nozzle piece is of a different design?

Packaging:
The box opening experience is something else, offering a clear plastic cover over the case and nozzles which I didn’t cover……….haha I didn’t cover the cover.

Anyways there comes a wide selection of great ear-tips, an owners manual with limited info but it does cover the warranty section, there are three sets of extra nozzles and an aluminum card which holds them. Inside the case you will find the IEMs already attached to the included cable. The case is the heaviest case I have ever seen come with an IEM. At a full 151 grams the case could be used for a weapon, or to store your Timeless II IEM inside.

Conclusion:
Here we are gifted with an excellence in tune and technicalities! Where 7Hz took their time and didn’t settle for second best. And your money is hard earned and should be carefully spent on something that makes you happy. I can honestly say this Timeless II made me very happy. Where it is not temperamental, but can sound better with a warmer cable and warmer source. It is that 7Hz walks that careful line, a line that states balance. There is fully enough drama in the higher tones and midrange play out to keep you in the zone. Oh, and the bass zone...........it’s nothing short of a miracle! You already know that!

The end zone touchdown is musical communication, reaching a oneness with music, as replay simply sounds correct, and sounds like it should!

$229.00
https://www.linsoul.com/products/7hz-timeless-ii

Linsoul website: https://www.linsoul.com/
Linsoul Aliexpress Store: https://ddaudio.aliexpress.com/store/2894006
Linsoul USA Amazon Store link: https://www.amazon.com/s?i=merchant-items&me=A267P2DT104U3C

Disclaimer:
The 7Hz Timeless II has had a total of 5 days of burn-in.

Disclaimer:
I want to thank Kaitlyn of Linsoul for the love and the 7Hz Timeless II review sample.

Disclaimer:
These are one persons ideas and concepts, your results may vary.

Equipment Used:
Sony WM1A Walkman DAP MrWalkman’s Firmware 3.5mm single ended and 4.4mm balanced
Sony WM1Z Walkman DAP MrWalkman’s Firmware 3.5mm single ended and 4.4mm balanced
Sony TA-ZH1ES DAC/AMP Firmware 1.03 3.5mm single ended and 4,4mm balanced
Electra Glide Audio Reference Glide-Reference Standard "Fatboy" Power Cord
Sony Walkman Cradle BCR-NWH10
AudioQuest Carbon USB
Samsung Phone 3.5mm
HiBy R3 II DAP 4.4mm
7Hz Artemis39 Bluetooth Amplifier and DAC 4.4mm
ifi Go blu Bluetooth Amplifier and DAC 4.4mm
ifi hip dac 3 Amplifier and DAC 4.4mm