MD Rohit

New Head-Fier
7hz Aurora
Pros: •Tribrid Driver Configuration: Combines a dynamic driver, balanced armature drivers, and a planar driver for a comprehensive sound experience.

•Good Quality bass

•Good pouch and ear tips

•good looking and quality full cable

•nice looking face plate

•Technical Performance: Excels in resolving capabilities, soundstage, layering, and separation, making it suitable for detailed listening.
Cons: •Noise isolation could be better

•Potential Sibilance: Some tracks may exhibit slight sibilance, which could be an issue for sensitive listeners.

•Size: The IEMs are not small and may protrude from the ears, which could be a concern for users with smaller ears.
View attachment DSC_0002 (61) (1).jpg
DSC_0005 (67).jpg

Driver configuration: one 12 mm composite diaphragm dynamic driver + two custom balanced armature drivers + one 6 mm micro-planar driver
Frequency response: 5 Hz - 40 kHz
Impedance: 30 Ω
Sensitivity: 105 dB/V @ 1 kHz
Cable: 2-pin, 0.78 mm; single-crystal copper cable; 3.5 mm and 4.4 mm modular terminals
DSC_0004 (69) (1).jpg

•4 pairs of 7Hz H07 silicone eartips
•3 pairs of long nozzle silicone eartips
•Plastic case for eartips
•Cable terminations for 3.5 mm and 4.4 mm modules
DSC_0019 (13).jpg


𝙳𝚎𝚜𝚒𝚐𝚗 𝚊𝚗𝚍 𝚋𝚞𝚒𝚕𝚍 𝚚𝚞𝚊𝚕𝚒𝚝𝚢.
The 7HZ Aurora earphones have a cool design that changes color when you move them around in the light. The inner shell is made of dark 3D printed resin that's light and feels good in your ears. They're not too heavy, so they're comfy to wear. Even though they might stick out a little because of their shape, it's not a problem for me since I have bigger ears.

But, if your ears are on the smaller side, these earphones might feel a bit big, and the cable is kind of heavy. So, you might feel them more, and they might not be as comfy. Just something to keep in mind if you're thinking about getting a pair for yourself.


•𝙵𝚒𝚝 & 𝚌𝚘𝚖𝚏𝚘𝚛𝚝
The 7HZ Aurora earphones are designed for comfort, even during extended use. The heavier cable might become noticeable after several hours, but it hasn't been an issue for me. For those with smaller ears, the earphones may stick out more, which is something to consider for long-term comfort.

DSC_0001 (61).jpg

•The 𝙲𝚊𝚋𝚕𝚎
- Detachable and interchangeable, enhancing versatility and longevity.
- Gold-plated connectors and single-crystal copper material ensure optimal signal transmission and sound quality.
- Modular plug system with 3.5mm/4.4mm L-shaped plugs accommodates various devices.
- Braided design is not only aesthetically pleasing but also functional, reducing tangling and microphonics.

- The cable's weight might be noticeable, which could be a concern for some users during extended use.
- While the braiding is beautiful, it may add to the bulkiness of the cable, affecting portability.

The 7HZ Aurora’s stock cable is a commendable inclusion, offering both aesthetic appeal and functional excellence. Its detachable design, high-quality materials, and modular plug system make it a standout feature that enhances the user experience. While it may have a bit of heft, the cable’s durability and performance more than justify its presence. Overall, it’s a solid offering that complements the IEMs well.
DSC_0008 (56).jpg

Initial Fit:
•The stock ear tips did not fit well, which led to a lack of bass.
Solution for Better Sound:
•Switched to Divinus Velvet ear tips for improved fit and bass response.
Comparative Testing:
•Tried various ear tips to find the best match for sound quality.
•Determined that Divinus Velvet tips provided the superior sound experience.

Review Notes:
My review reflects the sound quality experienced with the Divinus Velvet tips.
These tips may be the key to unlocking the full potential of the 7HZ Aurora IEMs for users who face similar fit issues.

DSC_0010 (54) (1).jpg

DSC_0007 (60) (1).jpg

DSC_0009 (56) (2).jpg

Items Used for this Review:
Questyle M15
cayin ru7
Shanling h5
Astell & kern sp1000m
Fiio btr7
hiby r3 ii
dawn pro

•The sound performance
•The 7HZ Aurora may look like it’s set to deliver a bass-heavy experience, but it’s a pleasant surprise to find that it’s all about quality bass rather than overwhelming power. The sub-bass has a delightful rumble that adds depth to the music, perfect for genres like hip-hop, EDM, and rap. It’s tight and well-defined, ensuring that it doesn’t bleed on the mid-bass or mids, and it’s rich in texture.

For the bass enthusiasts out there, the Aurora’s sub-bass might not hit that extreme low-end you crave, but it’s a natural and dynamic sound that many will appreciate. As someone who isn’t a bass head, I found the bass quantity to be just right.

Moving on to the mid-bass, it complements the sub-bass wonderfully, providing excellent support for the drums in rock, metal, and band music, which I personally enjoy. It’s speedy, with clean attacks and a deep punch that brings out the details in the music. The Aurora handles complex bass lines perfectly, making it a versatile choice for almost any music genre.

In summary, the Aurora’s bass performance is commendable. It’s well-tuned, supporting a wide range of music without any issues. While I enjoy its current bass response, a touch more weight could potentially offer an even more satisfying experience for some listeners.
DSC_0002 (61).jpg

•The Mids
When we talk about the 'mids,' we're really talking about the sounds that make voices and most instruments stand out. With the Aurora earphones, every singer's voice is super clear. It's like the earphones let you hear every little sound in their voice. If a singer has a rough voice, you'll hear that roughness. If they hit really high notes, those will sound clear too.

The Aurora is great for any music where the voice is important. But there's a small thing to note: male voices don't sound as heavy as they could. They're a bit lighter. On the other hand, female voices are full of energy and really stand out. They sound lively and powerful.

Now, about the instruments – it's like each one is in its own space. You can tell the guitars, drums, bass, and keyboards apart really well. This is awesome because you can focus on each one and really get into the music. It's like being able to pick out each instrument in a band when you're listening to a song.

•Sound Quality
The sound of the mids is balanced – not too sharp and not too dull. It's just right. This means you can listen to your favorite songs for a long time without getting tired of them. This is especially good for rock or metal music, where the guitars and singing are the main things you want to hear.

In general, the Aurora earphones do a great job with the mids. They make sure that voices and instruments sound clear and separate from each other. This makes your music sound really good, whether you're listening to a calm song or a Rock.
DSC_0012 (50).jpg

It's designed to deliver a crisp and detailed high-frequency response that brings out the nuances in music. When paired with a light, warm source, the treble is smooth and well-controlled, providing a listening experience that's detailed yet comfortable for long sessions.

The treble extends well, offering a good clarity, especially in the higher registers of instruments and vocals. This clarity is essential for genres that rely on high-frequency details, such as classical, jazz, and acoustic music.

However, when paired with a bright source, the treble can become more pronounced, leading to a sharper sound. This might appeal to those who prefer a brighter, more energetic presentation, but it can also introduce a level of sibilance or sharpness in the treble that some listeners might find fatiguing over time.

The key to the Aurora's treble lies in its versatility. With the right source, it can provide a treble response that's both lively and natural, without sacrificing detail or causing listener fatigue. It's this careful balance that makes the Aurora a compelling choice for discerning listeners who value a treble that's as articulate as it is engaging

The Aurora is great at playing high-pitched sounds in a way that's clear and lively, but not tiring to listen to. This makes them a really good choice for people who want to hear all the details in their music without any harshness. They're perfect for anyone who loves listening to music and wants to hear everything clearly and comfortably.

DSC_0016 (40).jpg

The 7HZ Aurora earphones deliver an auditory experience that's both expansive and precise. The soundstage feels wide, giving each note and instrument room to breathe, creating an open atmosphere for your music. With its stellar imaging and layering, every sound has a clear place, making even the busiest tracks easy to follow and enjoy.

For those who love to dissect their music, to delve into the details and nuances, the Aurora is a perfect tool. It's also versatile enough to provide an immersive experience, wrapping you in a blanket of sound that's both rich and detailed. Whether you're analyzing the layers of a complex orchestral piece or getting lost in the world of your favorite album, the Aurora stands out as a top-notch choice for any serious listener.

•Overall Conclusion and Recommendation
The 7HZ Aurora earphones are great for any music lover. They have a clear and balanced sound with just the right amount of bass, clear middle tones, and smooth high notes. They make listening to music really enjoyable, without making your ears tired. I'd definitely recommend them to anyone who loves good sound.
Target Audience

The 7HZ Aurora is a great choice for audiophiles who value a neutral and balanced sound signature with a focus on clear mids and detailed highs. It's par
ticularly well-suited for those who listen to genres like rock, metal, vocals, and acoustic music.
DSC_0006 (65).jpg


  • DSC_0005 (67).jpg
    DSC_0005 (67).jpg
    2.2 MB · Views: 0
Nice review bhai. #kharap manush 🤙🏻
keep up the work brother
David Haworth
Its all about the music. I love the way 7Hz tunes their IEMS. Great review. Love to hear this set!


Headphoneus Supremus
Pros: Depending on the stage size of your source, the stage can go from decent like from a phone to otherworldly large, like the largest stage you or I have ever heard from an IEM.
Open-back IEM design due to three large vented ports per IEM
The top of the line for 7Hz
Every bit a flagship sound both in high treble details and bass authority
Ergonomic copper cable with modular 3.5mm/4.4mm quick-switch L-Shaped plug, I have never seen a cable like it ever
1X 12mm Composite Dynamic
2X custom created BA drivers for the midrange
1X 6mm micro Planar driver for highs
3 way crossover network
Smashing set of new 7Hz brand red-core ear-tips, 7 sets of ear-tips in all
Easy to drive from a regular cell phone generating exquisite bass and decent stage imaging
Expected 7Hz value, the very essence a Chinese TOTL IEM purchase
Clean well imaged signature, like an open-back headphone
Gorgeous white hard-shell carrying case
Cons: Only a hist of Planar timbre, yet only at times and with certain music
Expensive at $399.00, yet worth every cent
The 7Hz Aurora Flagship Universal IEM
Redcarmoose Labs May 16, 2024


The angle of incidence, in geometric optics, is the angle between a ray incident on a surface and the line perpendicular (at 90 degree angle) to the surface at the point of incidence, called the normal.

When opening the Aurora case this component of physics is the first thing you notice. The Aurora will look dark until this exact line of light hits it, then it will light-up. Maybe a big deal to you, maybe not, just depending on how susceptible you are to faceplate aesthetics. Yet…….it is the very first clue that we are dealing with an IEM that is unique and very different from any IEM ever made.


This 7Hz Aurora is very special to me. Reason being it kind of showcases this whole Chinese Value learning curve…….for both them, and me. From their humble beginnings 7Hz created a few winners and a few that were never noticed. I’m not going to list all of their out-put, except I will talk about one IEM in particular. You already know which IEM I am referring too, yep. The Timeless Planar IEM. And even though a few good Planar IEMs came before it, the Timeless is unarguably the single IEM that started this Planar Revolution that we are still experiencing at this very moment.

In 2018 a team of music enthusiasts and engineers got together to test their skills. Somewhere along the way they chose 7Hz as the company name. In 2021 7Hz released the 14.2mm Planar magnetic "Timeless" IEM. The Timeless gained a reputation for best technical resolvability under $300.00. The Timeless, priced at $219.00 seemed like the answer to everyone's prayers? The unique CNC shell and double-sided N52 magnet array didn't hurt matters any! Still the Timeless was/is not perfect...........even with its popularity, there was a chance to add tuning sophistication. Timeless II had a false start. Meaning a few Beta samples were sent out to reviewers and the word on the street was the tuning wasn’t totally great. With roughly 16 other ear-monitor creations 7Hz has been around the block, they have a track record. This isn’t their first rodeo here………and I truly commend them for working on the Timeless II and not just releasing another regular IEM……….7Hz is about being an industry leader and there is no better way I can think of to lead than to (instead) come out with the Flagship Aurora at this exact point in time. In fact with the old original Timeless priced at $199.00 now, we are finding the Aurora exactly double that price.



The Aurora:
1DD x 1Panar x 2BA

I always try to listen to hear if a certain company in question is continuing a certain house sound. And from past multi-IEM output from IEM manufacturers there most definitely can be. Some manufactures specialize in midrange ability, others attempt bass character which can be found to inhabit a few releases. Though with 7Hz I’m not so sure? Meaning you can maybe focus on stage and say all of them have a great stage…….but in my history hearing the Salnotes Dioko, the Salnotes Zero and Zero 2, and the Legato…….each is holding very unique signatures. Now the 7Hz Sonus maybe in a wild in-the-outskirts way might sound a little like the Aurora? Sorry I haven’t heard the Timeless so……I can’t say the Aurora is like a fortified Timeless 1?

So the very best posture to hold here is to look at the Aurora as a single individual entity. It deserves that. Also in hearing it reminded me of a few Headphones and IEMs from the past……except really the Aurora is its own deal here. To name a few the first thing that came to mind was the AKG k701 full-size headphone. This was due to the overboard expanded spatial imaging taking place. The other player to remind me of the Aurora was the Noble Audio K-10 Encore. And this was a little from memory, yet became totally similar once I held them in back-to-back listening trials. I have never seen a response graph for the Aurora, yet the Encore holds this big 5kHz to 8kHz shelf that takes precedence to showcase the IEM tone. And it is in fact this big upper midrange imaging that made me understand how both the Encore and Aurora are birds of a feather. Yet the killer feature here is the Aurora has a separated and delineated focused and careful yet prominent bass action that blows away the k701, and the Encore. This sub-bass expenditure is prolific and shows up more provocative than you can ever image……..somehow out of the blue? I mean during the get to know you period I found the Planar driver to showcase this airy treble and I thought it was unique and cool. The 2X custom BAs went with the 3way crossover to blend the midrange into tonal completeness, yet it was the crazy 12mm bass driver that stole my heart.

Look, the Aurora is a Hybrid, it’s three different driver methodologies and yes, it sounds like different drivers in action. No it is not the most cohesive IEM made, as it’s not trying to drive down that street. To love the Aurora, you have to sleep with it on its own terms. You need to embrace the dislocation inside the bass and relish in the uniqueness found there. Sure Hybrids are my favorite way to go, and the separation of the bass is maybe the closest IEM sounding response I have ever come across to actual speakers making bass in a room………….there is that distance found. Heck……there is separation and actual itemization far out into this stage to every component of replay, every instrument, and every set of vocals. It is what the Aurora is good at and it’s running with it. Look at the darn vent holes on the side……look at the size of the vents and count them……..7Hz is not playing around here…..nope!

The included cable:

What the heck, is this real? In short the 7Hz Aurora cable is the nicest cable I have ever received with an IEM, ever. Yep, things are changing. I have other solid single crystal copper cables which I paid $160.00 as an aftermarket add-on for IEMs………and this single cable is way nicer. The way I verify such claims is I get out the past IEMs I purchased those OCC cables for and try them with the Aurora cable. IEM manufactures are often bigger than the small guys who make cables and can access bigger purchases which proclaim significantly larger qualities of raw materials (copper) and pass the quality on to you. Now I’m not saying all cable companies are on the smaller side, but remember this is 7Hz spreading their wings and offering a no-hold-barred example of what they can do. Maybe a make-up for the Timeless stumbling, I try to make-up with my wife the same way.



Crazy nomenclature printed everywhere that’s chrome. The 2Pins are noted with right and left markers, the ear-hooks are of a supple curve, never causing discomfort. The pure size of the cable and weight of 38 grams would normally mean this particular cable acts like a beast. But no, not at all, due to just how friendly and coil-able it is. Some cable manufacturers try to hide the joining spot where the modular plug joins……..7Hz has tried a new thing with raising a bevel to magically hide it. Where common sense says that raise would be a feature which would in-fact give a handle to pull the plug apart, when in use of the design this is not the case? The cable plug stays joined, probably just due to a good friction hold, as it never comes off until asked. If you never use a chin-cinch then you will be happy as it never unexpectedly moves from its home next to the splitter……never……..unless you pull on it. Every once in a while in this whole review process a component of a product package comes along to make you stop and wonder…….this is one of those times. Probably too because this whole cable is drastically new and way different from anything 7Hz has ever made. Sure they included copper cables before, but never this nice……….I guess you get what you pay for? Yet this cable is more than what typically comes with $399.00 IEMs?


The cable change:
The included cable is nice, but in an attempt to align the signature even closer to perfection here at Redcarmoose Labs I decided to challenge the included cable. Now sure, if the included cable was all you have you will be experiencing 80-90% of what the 7Hz Aurora’s full potential is. Yet being that 7Hz included a copper cable got me wondering. Where sure this IEM is airy and speedy…….but what if we could arrange for even more note-weight?

The Renata Cable:

Look I’m just like you in that I realize 7Hz is including a nice cable with a purchase, but they are not including a $269.00 aftermarket cable. Such a cable really brings out the soul of the 7Hz Aurora! And how could it not, with 2 handwoven shares, 35 cores Liquid nitrogen single crystal silver + 196 cores Furukawa silver copper alloy plated silver.

What the cable does is two fold. It increases density of imaging and creates a fluid expansion into the stage that becomes perceived as added realism. So not only is the bass thicker and denser, the treble is holding more note-weight but also brighter somehow and better sculpted. I know that is a confusing description with the brighter expanded treble and midrange, then adding the needed note weight, put that’s what is so fantastic here. Number one this Renata set-up provides density to the Sony WM1A making it fun, but where it really comes into its own is adding the Renata to the WM1Z. Where the WM1Z is more bass heavy anyway, and this reality of simply a more thick and real bass gets made more which and even more real-life! That funny (extra Blue) Cable Adapter goes one step farther too being it adds weight to the tone and spacial vibrance. But what was truly fascinating is that while the above really worked to add density, the very last part of the review has a story to tell. Yep, that after 14 days of play with the Aurora (and lots of burn-in) I then went back to the mid-centric Sony WM1A with the included cable for the time of my life? There seemed to be just the right amount of deep bass, that and (maybe it's mental burn-in) but the bass was even faster and more trim with the rotated-in Sony WM1A?








There is a hidden box under everything. See the difference here is the foam padded case is only for the IEMs, if you wanted to use it for travel you may try and place the cable under the lid in the screen-pocket? Also inside this hidden box is the cable, the plugs, a manual and a velvet like pouch. The Aurora comes with an additional small set of ear-tips already in place. The unboxing experience is just cool, and warrants the asking price.


At a stealthy 6 grams a piece weight they are more superior feeling than all those heavyweights you have tried. The other thing is the exact shape here, where I feel bad saying this but the truth is, this is the very best fitting IEM I have ever got from 7Hz…….and from most other manufactures. Look, I know that is a big statement, so let's back-it-up. The Dioko was a nightmare, the Zero, both one and two were strangely shaped. The Legato didn’t have the weight balance that we have here, and the Sonus fit fine, but didn’t have this exact nozzle feel. To me the Aurora is shaped strangely yet strangely in the very best of ways. :)


Air vents:
What? What is this an open-back IEM?

It darn tootin’ is…………yes!


This Aurora “for all practical purposes” is an open-back IEM. Yep, it sounds and acts like one… is one. Though these are not like open back full-size headphones in that you will not disturb anyone while using them. In this case we get that open and falling out to infinity sound, yet 90% of the sound travels out the nozzle. Those three vents have to do something, as the Aurora is one……..probably the biggest staged IEMs I have heard this year…….don’t believe me, buy a pair! The soundstage is enormous!

This all comes down to planning. Meaning the fitment is very well done, each faceplate is of the most lightweight material sitting close to the ear, being the perfect low-weight addition to your collection. As such 7Hz has continued with the angled 2Pin which means any cable you use will tilt in, instead of outward.

Here I'm showing the red new wide-bore 7Hz tips in comparison to the purple centered clear silicone I regularly use. At the lower right you see the longer wide-bore clear silicone that is secondary for use when the IEM in question has shorter nozzles, or when you need more contact with the inside of the ear-canal for support, like with the Noble Encore. And finally the blue top row far right, the Tangz Tang Sancai wide-bores.....just another tool in the tool-box to achieve great results. Probably the one major thing to learn from this picture is the barrel length of the new 7Hz, that and they also come in really big sizes, a size bigger than is photographed here. This size I can also use as shown at the end of the review is use, this little trick of offering more middle surface area and goes to get better fitment at times. Also I found great results with the yellow medium bore ear-tips included. Those yellows allowed for a closer IEM fitment and a tighter feel. Cheers!


Music tests:


And Love Said No: The Greatest Hits
Solitary Man
44.1kHz - 16bit

Right at 00:00 there are little bells chiming. As such this is a portion of the song I have never heard before. I’m sure they were always there, but now we have a relief and separation from the introduction keyboards. Little producer added embellishments holding both sonic dust…….fairy bells of magic……and they are introductions to the very rhythm of the song, only you don’t know that yet. The thing is this is supposed to be Planar timbre here? Only I don’t hear any, as it is not that I have ever heard these bells before, I more or less never consciously paid much attention to them, yet now that I am, they sound natural and come-to-think-of-it real? Actually I don’t know what this instrument is, it sounds almost like a music box, some 13 year old would have? Oh I just figured it out. These sounds are (I’m sure of it) the sounds of guitar strings being plucked behind the guitar bridge. And it is funny to just recognize things in sight, once you know what you’re hearing they sound that much more to be what they are. At 00:07 the full-on rhythm guitar takes focus. Here we are witness to a both more forward rendition (due to tone) and maybe a slight brighter timbre……from Planar action? Where just like the little bell sounds at the start that turned out to be guitar strings, there is a crystal clear rendition here, and a snare drum in beat. Yet of course the is a buried bass, as it is there providing its job, only not of real precedence. Where sure bass will show up, only that is not what this intro is about. To backtrack here there have been two very important elements showing yet not commented on. The guitar strings strummed right at 00:00 and panned in glorious left to right fashion, that and an ominous set of keys which billows to its very own separated space found in the stage. In fact this is the whole Aurora in a nutshell, even right-off.

Timestamps only for digital file.

The Aurora is showcasing high-pitched sounds you never noticed before, and a separation, and execution of stage that lets you literally choose what to focus on.

Up to 00:12 we have the privilege to hear a few guitar overlays until 00:13 when the vocals start. Yet there is no denying that guitar is forward and clear…….clear is an understatement. Vocals are placed well, very clear and consistent. At around 02:03 the guitar leads start, and sure enough we find them separated far-out escorting our mental focus to the far left and right. I mean such things are the entertainment factor to the Aurora. Also I chose this song because it is the strongest in today's song plays which goes to delineate any Planar timbre, because yes…….with a song like this it is there, inseparable apart from the very guitars it is a hold of. Though I have chosen to befriend such character……..and (like real people’s quirks) learn to accept it as part of the Aurora personality.


Doom Eternal OST
Mick Gordon & Chad Mossholder
Phobos Space

48kHz - 24bit

Ok, now we are going to go another direction in playback. To where the Aurora has many skills and to write about them is a reviewers job, write about them is a reviewers play! At 00:03 we are met with real sub-bass. The way this is mixed into the start we are encountering it coming from many stage originations.

Again timestamps refer to the original digital file here. This isn’t the best bass from the Aurora, as I’m saving that. But what I’m trying to get from this song is an overall appreciation for the Aurora's demeanor. No wait at 00:22 yep, that is the bass we are buying here. The sub-bass rumble the whole gig. And to go back the pure white noise at the start at 00:07 to 00:11………that is what these IEMs do well, where the noise is not scathing but contained and in its own zone found occurring in the stage. At probably 00:27 is where the money is…….in just how the ambient synth washes travel outwards into the stage…….and caress our imagination as to the virtual world we are now entering. Yep those timed sub-bass hits…..I almost forgot about how well they are done…….and consistently showing a flair for the tempo to be fully delineated at 00:22 then 00:32 then 00:42-00:52 etc, etc.

A big part of this testing is actually rolling in different cables and ear-tips to try and understand the total IEM response regardless of ear-tips used or cables tried…….and there is truth found there. At this section of the review I’m using the included cable, and my go to ear-tips the purple wide bore as seen in the close-up tip photograph. These access the biggest stage, but I have enjoyed the red 7Hz ear-tips tremendously and will continue to use them way after the review is written, both large and extra large as seen in the box opening shot.

I’m laughing to myself, as this has become comical………the 03:17 main synth sequences traveling way off to the right and left…..being thrust into pace by the more center driven bass throbs. To where this images could not normally be this big, except they are formed into width, and tallness and depth, and of course traveling forward and back……to make an immersion of sorts…..then grabbing hold of the wicked fast transients which will occur due to the 2BAs holding an edge as well as the Planar drivers fast techniques. Yet due to this song's slight distortion of edges, it is actually like the first song's distortions in guitars…….that the clarity here comes in a wrinkled bag. That bag of wrinkles is maybe the Planar character combined with the music quality…………presented by the drivers to delineate?

In ending this craziness, it is (of course) the full-on stage separation and imaging found within that is the entertainment show, and the Aurora’s ability to take this musical statement apart and to kind-of separate every little tiny aspect. Big round pulsating life forms of washes into the imagination of throbs like the ones at 03:17……those things…..combined with little accents like the ticks…that change fro the first click at 04:05 to the small one at 04:08 to the louder one at 04:10. All these little sounds take place in the center of big… huge sonic life forms which make-up the world we are a part of here. The imaging and complexity has me in awe… when I finally realize that this song was completely made for the Aurora. Now at 04:27 they were not done with us, no………these sliders of tones… now in the song where it was from the start over the top, now it is beyond description? Where to try and phone home………the reason this maybe works so well is the sub bass has Hybrid separation which is unnatural normally a little, but here the seperation is an add, that and the missing lower midrange that the Aurora is known for is helping the upper midrange and treble be that much more separated and imagined. That and the fact the stage from the Aurora is making this song come alive. I could go on……..but the guys in the white coats may come a knocking?


Hans Zimmer & Junkie XL
Batman v Superman OST

Day of the Dead
96kHz - 24bit

Look, when I stumbled across this OST I right away knew it would be one special vehicle to get many points across. I mean I may write a lot about this song, but that is because it holds so much about what the Aurora is about…… me anyway. Even doing my research for this section, this song gave me the chills……..and I mean I know this song, but………well let me start. Though I will say this song is from a very special Head-Fi member. Yep, he was in-charge of all the audio for the movie……everything. I even picked-up a few vinyls from his collection which he sold… time at a Head-Fi meet many many moons ago. And it is really not because of him that I like this OST so much. This album is an amazing accomplishment, actually to me way more successful than the movie itself ever was.

The player, the WM1Z, the included cable and purple center wide-bore tips. So remember the first song by HIM that I expounded held a little Planar timbre? Well that is completely gone now, and really wasn’t present in the last Doom Eternal OST either. You could say that is because of real guitars used in the HIM song and I would not argue. Except here we have real pianos used and typically I can pick-out unrealistic timbre in such an instrument. I think maybe part of the issue with the HIM song was the guitars were also heavily tweaked-up. Because here all is well, actually here we are in a form of audio paradise, yep every part of this experience is emotional and profound.

Remember timestamps are only for the digital file. There are two bursts of bass notes, I use these often for reference and have heard them many ways throughout the years. The first bass drop 00:37 holds a few challenges for IEMs. At times I guess what made the sounds, and then when I hear them again, I’m not sure. But in this regard there are a few ways to hear them replayed. BAs will do a cleaner response, holding even crisper edges, yet the other way is with a controlled DD…..and that’s what we have. You should if all is set-up right hear the initial attack, then the reverberations which form a backwash. When you have to ask yourself is it one timpani strike, with an echo or two? And it is not maybe a timpani and it is lower in tone…….really the sound is a mystery, and I could ask my friend what made the sound, but not knowing it all is at times more fun. You see these tones are answering the piano notes…..they are a response, like to a conversation. And to rewind here, those piano notes come-off perfect with the Aurora, at least in timbre they do. Before the piano shows up the strings are on the very outskirts of the stage, showing us the very environment we have chosen to experience. As such this piano has long reveb tails and we can hear them to the fullest extent.

So while other IEMs may be found more realistic, here I’m guessing because the Aurora is so sub-bass forward that the (sub bass) drop at 00:37 is so clear. While it still has DD character, the defining part as far as resolution goes is to separate the drop from the backwash effect. Now to keep track of all this there is a second drop at 00:50…..then a swoosh at 01:07. Now while all this talk of swooshing and bass drops is important for the mood of the song, there is something way more important in regards to the mood. And that my friends is the actual tone of the piano, the positioning of those piano notes and the clarity of each and every subtle note pressure change. Because the piano is played by a human, there are these subtle variances which are held as details in the Aurora. Maybe…….well I don’t know why? But this is a $399.00 IEM and you are receiving what you paid for.

At 01:15 the main strings approach us. Everything now is louder than before. At 01:18 there becomes a bell sound. Now this sound is ultimately super special, as at 01:23 and at 01:28 it is used again but falls slightly behind the scenes. It may have inhabited space before the 01:18 mark, yet what is important is at 01:18 the Planar treble grabs it and makes it sound metallic, not metallic in a bad way……..but metallic in a good way…..there is separation both in origination of the tone and a frequency separation. At 01:38 this “noise” becomes a projectile and is shot from a sonic gun to fly across the inner mind stage! But, we are wallowing in the details, the muck and murk of audiophile neurosis. The real big news here, you know the news your Mom and Dad could relate to are the giant woody strings. Big, bountiful and aggressive… wait, aggressive is the wrong word, they are way too woody to ever be aggressive. Let’s just call them 3D. 3D because they hold a few characters of their own. At 01:58 another major bass drop hits, and because they are using them sparingly it is dramatic…….not like the DD,DD,DD of EDM! Still at 02:12 it is a climax to the song so they are now going full-throttle. You know once more I’m thinking the Aurora was made for this song, yet it is 100% different from the last………well that’s always a good thing. At 03:21 there was a scraping of strings way to the outside, farther than I knew the stage went to. There is also a lot of effortless breathing going on, I mean not actual breaths, but kinda like that sound……and I like it. I figured out later those tones were formulated to become the very last remnants of audible hearing, they are almost the lows of the lows to where these sounds are not fully formed but show almost an afterthought of sounds………perfect for the ending.


Left to right:
7Hz Aurora, Night Oblivion Butastur and Noble Audio K-10 Encore

These side-by-sides were fun. Sure the Noble Audio K-10 Encore is a lot more money, but they sell used now for $599.00 so in many ways the price is closer to the 7Hz Aurora. Both the Encore and the Night Oblivion Butastur are 10BA IEMs. So why am I choosing to have them reflect off one another? Probably because the three are in many ways birds-of-a-feather. Obviously the Aurora has the most bass…..but the wild thing was how both the Encore and the Aurora shared this pushed-up upper-midrange. Not only was it alive, that upper-midrange was occupying a similar size into where it was found in the soundstage? Where sure the Encore was more intense, as almost nothing out they sports a shelf of a 5kHz boost up to an 8kHz boost. But it wasn’t until I got them side by side that I realized just how remarkably the same they both are in those regards. Where the biggest difference was the Aurora bass power. Yep, where the sub-bass has a level of detail and clarity, though it isn’t the most clear in the $399.00 price point, still it has amazing detail and a formed dislocated entity separated on-its-own in its very own part of the stage. Where the Encore has a neutral bass and flat midrange which gets even more downplayed by the 5kHz to 8khz shelf. Where the Butastur has less stage formation than the Encore or 7Hz Aurora, there can be the illusion of a bigger stage when the music itself contains such treats. Where yes, the Butastur and Encore were the same holding BA sound creation, the Butastur with it’s toned down treble and midrange BAs offered-up a more realistic timbre. The 7Hz Aurora was slightly more dirty, dirty but fun in imaging…… where you could be listening to the 7Hz Aurora and enjoy that giant stage, but never worry as much about stridence or sibilance as the Encore. Where the dirty part was often there was a faint edge dirt to the whole signature. This is hard to explain, but while there was ultimately a big stage and clarity due to stuff being way, way spread out into that stage, there was a slight fizziness which became actually endearing. Yes, at times like with HIM those pushed guitars had a forwardness and a slight off timbre, yet it was never that bad……simply a character of the Aurora. With the Aurora being the quintessential Hybrid it sounded like it. Meaning there were obvious way-off creations of instruments, yet things were not as cohesive as the Butastur. As such the Butastur makes its way through life offering a mature careful tune that never takes too many chances yet nurtures your love through correctness and poise. Where the Encore is more wild throwing out a stage, yet that stage filled with frequencies maybe not digestible for all. Maybe best would be to make a list here?


1) 7Hz Aurora, big stage and fluid separation, deep bass and Hybrid dislocations, plus the most satisfying bass.

2) Night Oblivion Butastur cohesive tune, complete and correct, never bad timbre and careful almost to a fault.

3) Noble K-10 Encore most bright, big stage fun and vibrant to a fault, treble not for everyone.

Now even though I put these each into the same category, I do that because of the midrange. To me they each seem very midrange focused, and I like that. Where the Encore is flat in the midrange the missing bass and 5kHz to 8kHz shelf still makes you think of midrange or upper midrange when you reach for the Encore. The Encore I have had for a while putting over 3000 hours of listening time. Even though the 7Hz Aurora has that sub bass, it is still very much upper midrange centered too, where you think of those aspects when grabbing the 7Hz. Where the Butastur has an incredible midrange, to where all of these three do great vocals, with both vibrancy and polish. Where really all three at only certain times make you long for that heavy lower midrange, which none of them truly have. As such maybe in some ways with the tuning..... each and every one of these could be looked at as a more mature idea, where there is a forward clarity through downplaying the lower midrange and center bass action which enables faster pace and more nimble turnarounds while the music is playing.



There you have it. The 7Hz TOTL Flagship earphone. Who am I to say if you will like it or not? I have done all I can to describe it to you. If you read the above you may have a clue that this is my favorite 7Hz so far. I mean how could it not be? The stage is giant, and not just in width, but in total image size that comes from big forward and back, and big up and down positioning. For many of you I can guarantee it will hold the biggest stage you have ever heard. Now while at times it is not 100% filled in, yet you’re so thrilled by the rest you are fully distracted, and happy. I mean I have been following this IEM ever since it was first introduced. And when I had it in my grubby hands I had this innate feeling that I was satisfied……not while it was in my hands, but in my ears. And sure the Aurora is not perfect, but like love, you love someone for their character flaws not their strong points. And maybe that was the goal of 7Hz, to make an IEM different from any IEM on earth. To be original, because the last thing the Aurora is is boring. The Aurora is everything but boring, in fact it may be the least boring IEM I have heard in a year?


The accessories are all really well done, the ear-tips are special and new. I hope they offer them by themselves so others can at least try the ear-tips, even if they don’t get the Aurora. The case is super nice, and when you open the case you question why every manufacturer doesn’t present their IEMs this way. And finally the cable, I know I already talked a lot about the cable…….but just look at it? I have never seen a cable quite like it and I have seen my fair share of IEM cables. And finally the faceplate, just underneath of it lay three (3) profound breather holes, those must be in constant action to provide the revolutionary stage we gain? The actual faceplate is made of something I’m not familiar with. Though one of the best things is wearability, yep I couldn’t scratch it. It is smooth as anything, yet looks painted onto. Yet that is the illusion here. That in fact there is a thin piece of plastic which is rugged and smooth occupying the very surface. Then you have the bevel of the faceplate edge……that edge (to me) is the Aesthetic trademark to the Aurora. Why? Because no IEM I have ever seen has that faceplate edge, and I look at it all the time. All the time when the Aurora is not in my ears. This review took much longer than expected, as I burned-in the Aurora for 125 hours just to make sure I was not missing anything. It changed a little, but really made only a small amount of added smoothness takes place?

My final words:
The Aurora kinda sucks you in. Meaning there were always times at the first few seconds of songs where I thought the Aurora was only going to be so good. Then something happened? Maybe I would call it musicality for lack of a better word? Whatever was going on, I was transported to the very center of the music…..and that center had me looking around and these sonic fish swimming inside this sonic aquarium. Really I was always surprised as just into the beginning of the song, it was way better than I expected? I don’t know exactly what you call that? But it was all good! The fitment at only 6 grams each is amazing, and you know we favor better fitting IEMs to lesser fitting IEMs. And finally they got the nozzle lengths right. How stupid of a little thing is that? But you know it is the little things that matter, and when all the little things add-up…….well then they make something big. And yes, the Aurora is a big deal…… is the epitome of Chinese Audiophile Value……..the epitome. Don’t belief me, try it on!



I would like to thank Kareena from Linsoul for the love and the 7Hz Aurora review sample.

These are one person's ideas and concepts, your results may vary.

Linsoul website:
Linsoul Aliexpress Store:
Linsoul USA Amazon Store link:

Equipment Used:
Sony WM1Z Walkman DAP MrWalkman Firmware 4.4mm
Sony WM1A Walkman DAP MrWalkman Firmware 4.4mm
Samsung Phone 3.5mm
HiBy R3 II 3.5mm/4.4mm
GO bar Dongle 4.4mm

Phone use:
Oh, one last thing….from a regular phone.

I typically slow down for this. I mean I take this as a really important test. For one many of the IEMs put out today are far different than what used to be placed with phones. Meaning often they sound fuller and have more thickness of character. Taking the included cable and switching to the 3.5mm L-shaped plug was really simple. I always carry around 32GB of phone tunes that I will often hook a Dongle to the phone, or go Bluetooth. Yet here I must say, I’m pretty sure nowadays they make phone use almost a priority for IEM makers. Meaning I can almost hear the engineering bosses tell the staff, if it doesn’t work off a phone, we don’t want it. I say this because while the stage isn’t quite as big as a full-fledged DAP, there are so many nice features to phone playback. You see in many ways the Aurora simply relays what you give it. Meaning I can say that even if the WM1Z bass is big, there is a lot of excess baggage that goes with that weight. Meaning that while the stage was reduced in phone use, the bass was surprisingly deep and tight. It made me almost want this exact bass during the whole review…..because it was cleaner, and even more detailed. So I asked myself, could I be happy with this style of playback when out-and-about? And the answer was definitely yes, as it gave me 75% of the audiophile thrills I wrote about earlier, it was simply very, very good.

More craziness:
You know after I finished this review and pretty much did everything, I got to thinking, maybe I rushed the review? Yep maybe I didn’t give it my all, because an IEM like the 7Hz Aurora deserves the best review possible. And you know what, 7Hz spent a long time making the Aurora and I am truly gifted to be in the presence of such an IEM. And really this isn’t a big deal, but in a way it is. As I continued to use the Aurora I stumbled upon one of my regular test tracks. Normally this completely ambient test track gets respect, but it is not chosen to test IEMs right off as it is just effects and synthesizer? Yet out of all the other test tracks this one had the ability to really showcase what the Aurora was completely about. Yep, all the good and the bad. You see, different from most reviews, after this review was finished I set it back and didn’t publish it……I waited. I postponed and simply listened to music for another day to see if I was missing anything……anything to write that was possibly left out. And this song showed-up.

Shield Emitter (feat. Tineidae)
44.1 kHz - 24 bit

Anyways, this song is often chosen to describe the layers of bass offered by an IEM. It coincidentally has a giant and moving soundstage. Yet here is the thing, after using the song for a while I started to realize it was incredibly useful to broadcast treble information. Yep, sounds that were mixed in right at 15–17 kHz. I would guess the sounds at times go to 20kHz also. This ends a way to understand high frequency output from IEMs………and quantify such behavior. To where for the 7Hz Aurora the song ended supremely entertaining, yet at the same time helped delineate the topic of Hybrids at times not being totally even in output. Meaning they leave small holes in reproduction, yet the aftereffect is so very musical that most of the time I disregard such issues. Now here we are met with big bass, big bass that more careful playback devices may not hold in such an abstract position. Still the separation seems to enhance what they were going for?

Here like the pictures I’m using the Sony WM1A with the included cable, though I switched to the generic purple wide-bores to really get the very best stage possible. Where with some IEMs the purple wide-bores will not work due to stress put on the lesser amount touching sidewall of the tip. Yep, these tips have slightly less contact area inside your ear-canal. I mean look at them, they are what we call donuts. So manufactures progress to offer longer sidewall ear-tip builds to increase fitment due to sidewall contact.

cover_copy copy.png

Shield Emitter:
This song was made for the Aurora, where at the start the bass finds itself politely placed both big yet not so forward……like speakers in a room. This speaker in a room effect will always be one of the single most endearing features of the Aurora, being that as IEM users we are always looking for stage and seem to avoid critical close-up positioning, being the farthest of being like speaker bass. As such this farther away is also not holding the supreme detail of other IEMs……but come-on it’s a 12mm DDs, so as such the performance is what it is. That means it holds a taste of lumbering, which in this style of music adds further ambiance to the thrill.


I do want to point out that during the review I did attempt to change cables and DAPs to try and add physicality at times, yet maybe it is simply getting better brain-burn in, because the mid-centric 1A and included cable have now jumped into position to relay all the bass transients and bass quantity needed here. Plus they are clearer and more tidy offering a both deep and rewarding listen with very little bass fall-off to get in the way of critical pace and texture. Meaning the bass now is perfect, perfect audiophile.

There are pulsations and deep creations going on, yet it is the soaring synth washes, really a lead synth which takes front and center. Yet that’s the magic of this stage……that the stage is so grand this synth stays medium positioning giving that room that comes with offering a world-class stage. While this synth in question actually starts off right at 00:14…….they play with volume and eventually increase the vibrancy which brings it forward even more as the song rolls on. It should be noted that all elements here are drenched in heavy reverb, yet it is this ambient character that makes the song. At 01:08 the bass is clearer and louder… really everything about this song's craftsmanship revolves around the evolution of sound elements and the specific introduction of those elements in time.

At 00:27 the super high pitched sound elements are brought-in. This most likely is a created event which signals profound change about to take place…… birds flying off before an earthquake. Lol. Yep the Planar driver is activated by such events. Now the stories in the front of this review about planar timbre are true. Yet with this song there is none. Where the Aurora offers listeners this double-edged sword at times……where sure, there is a forwardness to the upper midrange and inside of that forwardness lives a little of this off-timbre……but I must confess…….after 14 days of of use my Aurora experience somehow got better and better? Meaning the Aurora is special and unique at any price……and to think they want just $399.00 for this. Of course it’s not perfect, but in its entirety the Aurora does something that I have yet to encounter at any price.

Really at 02:10 we can say we are in the very middle of the sonic statement the performers were attempting. Where sure there are white noise blasts earlier at 01:57 that are somehow in the zone with everything else, meaning that while the Aurora is not the most even skilled player out of all my IEMs… does make everything perfectly digestible and fun. Fun because finding ourselves unexpectedly in the very center of this number relays a critical framework of holding every constituent offered up. Showing that stage size really does matter, and maybe matters even more with this style of music?

It is this very subtle sonic noise at 02:23 that is actually a grouping of expression elements, that with the Aurora are sequestered up above the rest of the music. It is this upper treble display that I know they were going for with this tuning. Yet to try and zero in on this Aurora character, you see they were using a Planer driver……for this…..not a small DD, not a BA and not an EST arrangement. Due to such an application the Aurora holds its own thing, its one one-of-a-kind personality that is truly charming in the end. At 02:33 they are now not holding back the treble items for us…..but letting them come alive. (And this genre is called Ambient Bass) That there are small pieces of paper torn…… I mean it is maybe not paper, but it sounds like it, the same exact rip being performed over and over again. Your mind creates an auditory illusion here, where the first rip becomes of a higher frequency when in fact the two rips are frequency-wise identical. It is from this exact midpoint the song then travels onward till the very end without consequence other than a few (uneventful) ambient noises………till the end at 05:10. End.

Last edited:
MD Rohit
MD Rohit
Nice photos and good writing brother
@MD Rohit,
Actually I'm not always sure if the script is comprehensible, as I have no proof reader? So it is nice to get compliments on that. This reviewing IEMs can be different than writing a letter to your family. Thank-you! The photos are the easy/fun part, I'm glad someone enjoys them. Cheers!


New Head-Fier
A Literal Detail Monster! The 7Hz Aurora
Pros: 1. Extremely detailed presentation
2. Neutral with sub-bass boost tuning
3. Crisp and airy treble
4. Vibrant and open sounding mid-range
5. Articulated and well-controlled bass.
Cons: 1. Peaks and dips in the treble cause uneven presentation, lack the naturality.
2. Lack of note weight, lower mid-range is subdued.

Review Of The 7Hz Aurora



7Hz, a Chinese firm, has been creating electroacoustic products, specifically IEMs. The business has created several IEMs prior to the release of the Timeless, a full-range planar IEM that catapulted them to prominence. Many people admired and appreciated Timeless for its sound quality and tuning; following their success, they developed several IEMs that were highly accepted in the budget market, including the Zero, Dioko, Sonus, and Zero 2. The business has expanded into inexpensive dongle DACs, releasing 71. Since 7Hz teased the release date for the Timeless II last year, they have instead produced another IEM, their flagship known as the Aurora. Fortunately, I was able to obtain a pair for review, but before I go any further, I'd want to clarify a few points.



*Since this unit tour was organised by the kindly people at Linsoul, I am grateful to them. As I've said in all of my evaluations, the same is true for this one: all of the concepts I've expressed below are entirely my own, original ideas that haven't been influenced by anyone else. If interested, go to this link.
*I am not associated with the connection, and I receive no financial assistance from anyone.
*For the remainder of the review, I will refer to these IEMs as “Aurora.”
*I am using different Ear-tips for convenience and better versatility.
*Finally, I will only evaluate the Aurora based on their performance, even though I will explain how it feels and seems physically and aesthetically.


The Aurora has a tribrid arrangement with four drivers on each side: one 12mm dynamic driver for bass, two bespoke full-range balancing armatures for mids, and a special micro planar for highs. The shells are on the larger side and composed of resin, while the faceplate is constructed of damascus titanium. It is a little troubling for persons with small ears because the shells are large, and the nozzle adjustment made it difficult for me to establish a suitable seal and comfort while wearing them, but after tip rolling, I was able to find comfort and an isolating fit with Azla Sedna Fit Crystals. The cable given is a modular 2-pin cable made of single-crystal copper. The cable feels nice and plasticky, yet it isn't heavy in your hands. The other included accessories include an elegant storage box, a selection of eartips, and modular plugs (4.4mm and 3.5mm). According to the technical specs, the impedance is 30 Ohms and the sensitivity is 105dB. The frequency response ranges from 5Hz to 40kHz, and overall harmonic distortion is less than 0.2 percent.



Trust me when I say that Aurora is a literal detail monster, as every aspect of the presentation oozes out details and clarity with a versatile tuning that allows the intricacies and nuances to shower over the mix, bringing excellent clarity and transparency to the presentation. Though I notice that the existence of such notes results in sharp characteristics, I have never experienced a metallic nature. The crispness and air in the treble area, as well as the lively tone of the midrange, combined with a large stage that allows notes to breathe and sound full, result in remarkable detail retrieval. The nicest thing of the entire response is that the definition and tonal balance are nicely established, resulting in a lean yet coherent-sounding presentation. If I look at the graph, it appears frightening with peaks and dips over the treble area, however, such a presentation produces a vibrant and enticing response that isn't overly bright while also including crisp and sparkling aspects of the notes. On the other side, the midrange sounds broader and clearer without adding hotness or peakiness to the mix, while the bass may become a touch too controlled but still present enough to make the response feel full-bodied. Let's go further into the sound and learn more about it.



The treble area is really funky, whether literally or figuratively, with peaks and dips that enact a new profound feeling of clarity and revelation, and while it does its job, I still find it a touch weak at times while revealing at others. When it comes to the upper treble, the sound is crisp, sharp, and detailed, with strong extension and airy presentation, but in certain sections it is suppressed, which I believe brings out some portions of the songs extremely effectively while subduing others and providing a perplexed response. The lower treble appears to be quite active and exciting to listen to, with voices that sound upfront and bright, while the instruments feel a touch subdued, with subtle nuances. Tracks like Kenka by Kuijira Yumemi feature vocals that may come over as peaky, but that is not the case in Aurora. In truth, the vocals sound completely clear and well established, as do the backing vocals, but an array of instruments sounds a touch subdued, with the nuances suppressed, particularly between 4kHz and 7kHz. However, tracks like Spiral by LONGMAN sound incredibly refreshing and tonally pleasing because they enable guitars and percussion to sound distinctive and prominent without interfering with the vocals; the whole response is engaging.As a result, the overall presentation of the treble area sounds crisp, clear, and revealing, despite being slightly inconsistent in tone.

Mid Range

In the mid-range, I feel custom-tuned balanced armatures were the best decision; the response in this region does not sound metallic or hot in any manner, but rather tonally agreeable. Whether they are vocals or instruments, both provide a lifelike presence to the mix, making the overall response more revealing and calming without taking away the enjoyment. The upper mid-range is full of vitality, allowing the voices and instruments to take a forward approach that is vivid and detailed without sounding abrasive or rough. The intricacies are highly noticeable in this range, which sounds refreshing and intriguing to the listener. Even though the graph represents the upper mid-range feels very much prominent in the mix and the lower mid-range subdued, but when listening to it, the upper mid-range is well controlled but it shows a forward approach, while the lower mid-range brings a clean response without any vague or weighty response but dense enough to sound thick as instruments like bass guitars or vocals, especially male vocals sounds heavy and rich in terms of natural tone of each note arising. Tracks such as Kizuna No Kiseki by MAN WITH A MISSION and Lead Me On by FLETCHER, whether male or female vocals, have a very rich and full-bodied response even when they sound open and spacious, and the instruments sound as revealing as the vocals and distinct from vocals, allowing nuances to come across and fill the response completely. The forwardness of the vocals allows for an engaging and immersive experience. As a result, the mid-range area is presented in a natural, compelling, and comprehensive manner.


Let me tell it honestly. The bass is excellent, and the potential for scaling is very astounding. The bass is quite comprehensive and precisely adjusted to deliver an assertive, noticeable and definite response without feeling ineffective since it subdues the warmth of the mid-bass. The majority of IEMs in this price range offer either highly playful/fun-sounding bass or well-controlled and clear bass. In terms of bass quantity, Aurora's bass lacks weight and organic heft to the notes; yet, the bass is highly textured and detailed, and its impact and power are solidly established. The focus is on the sub-bass, with the bass being deep enough to produce a rumbling sensation when necessary, and the punches being forceful enough to create a full response as well as a sense of resolve. The bass notes are very distinct, allowing for a smooth yet detailed response, but at the expense of warmth and a heavy presence of mid-bass, the slams and thumps lack the characteristics that contribute to a weightless response, but this has little effect on the lower mid-range thanks to the custom dual mid-frequency BAs. In songs like The Reason by Hoobastank, the drums can seem lacking in presence compared to the vocals and other instruments, with the toms and kick drums feeling light and lacking weight. Conversely, in Somewhere I Belong by Linkin Park, the bass has a clear and articulate response, though the impact and heaviness of the bass notes could be stronger. Overall, the bass region is controlled, detailed, and well-articulated.

Technical Performance

In terms of details, speed, and resolution, I don't believe any other IEMs, such as the Hype 4 or Blessing 3, are even comparable. I'll have to test the Pilgrim to provide comment, but for now, I believe it's the finest in its class. It does not fall short in terms of stage imaging or separation, but it is comparable, if not superior, than the IEMs stated above. Let's be more specific.


Soundstage, Sound Imaging & Separation

The stage features a holographic presentation that is big enough to create an open and airy atmosphere; the notes are crisp and lucid, demonstrating excellent imaging. The distinctness of the notes creates an excellent feeling of separation between the notes, allowing you to determine the source of the sound with ease.

Speed & Resolution

As I previously stated, the resolution and detail retrieval are among the greatest I have heard; macro and micro nuances are readily revealed, and the attack and decay of notes is extraordinarily fast-paced, almost unnaturally so, but it still sounds authentic.

Sound Impressions


Sony WM1A - While listening to WM1A, response spreads out further in the left and right directions, resulting in a more expansive and airy response. The treble sounded smoother and more coherent, while the mid-range sounded more open, allowing the bass to sound more lively and, with warmth added, making the overall bass sound organic and genuine. The details were a little suppressed, delivering a more rounded response, which caused the vocals a touch off-toned on several tracks like Sukinishinayo by ANLY, Kamihitoe by URU, etc.


SIMGOT DEW4X - while listening to the DEW4X, the response sounded a little crisper but not sharp, The stage depth was affected while the width felt more spread out. The treble sounded airy and extensive with pumping details, and the mid-range sounded a little less forward. The bass also felt more centred but had the same impact and physicality.


QUESTYLE M15i - When listening to this pairing, the response sounds calm, allowing for an expressive and open-sounding response with better control over the revealing nature of the notes, allowing the notes to sound as natural as possible with a presentation spread out far and wide, where the upper mid-range pours everything while remaining airy and spacious. Listening to tracks like Gotye's Somebody That I Used To Know and Love Will Come Through, the vocals sounded incredibly real and detailed while yet being open and light without disrupting the tonal balance. In the end, what may have sounded analytical and impartial came off as well balanced and resolved. The bass felt a touch light but more textured.


QUESTYLE CMA18 - Aurora's response was able to have the appropriate breadth and depth when listening to this pairing since the response was presented more frontally and backward. The vocals and instruments sounded more expressive than previously; with CMA18, the refinement in the notes increased in terms of details and contrast, providing more transparency and linearity throughout the response. The notes were clearer and revealed certain elements.



Millet - Anytime Anywhere
Anri - I can’t stop the loneliness
Kohana Lam - A Few Sentimental
Kohana Lam - Loving Me, Loving You
Uru - Kimino Shiawasewo
Uru - Kamihitoe
Kujira Yumemi - Kenka
Majiko - Kokoronashi
Anly - Sukinishinayo
Kohama Lam - A Few Sentimental
Kohana Lam - Loving Me, Loving You
Miliyah - Kono Yumega Samerumade
Rokudenashi - The Flame Of Love
Yu-Peng Chen - A New Day with Hope
Yu-Peng Chen - Another Hopeful Tomorrow
Yu-Peng Chen - For Riddles, for Wonders
Valentino Khan - Satellite
Kai Wachi - Happier By Now
Jawns - Erotica
ISOxo - how2fly
Kai Wachi - Happier By Now
Weeknd - Popular
YUNGBLUD - When We Die(Can We Still Get High)
Bring to Horizon - Kool-Aid
Middle Kids - Bend
FLETCHER - Leads Me On
Loathe - Aggressive Evolution
The Weeknd - Save Your Tears
Sigrid - Burning Bridges
AURORA - Black Water Lilies
AURORA - Runaway
X Ambassadors - Renegades
Lupe Fiasco - Words I Never Said
Macklemore & Ryan Lewis - Can’t Hold Us
Goyte - Somebody That I Used To Know
Jay-Z - Run This Town
Lady Gaga - Poker Face
Lady Gaga - Just Dance
Ladytron - Ghost
Travis - Love Will Come Through
LINKIN PARK - Somewhere I Belong
DJ Shadow - Six Days (Remix)
Hoobastank - The Reason
Ricky Martin - I Don’t Care
Tool - 7empest
Tool - Vicarious
A Flock Of Seagulls - Space Age Love Song
Zack Hemsey - Vengeance
Elton John - I’m Still Standing
The Moody Blues - Nights In White Satin
Micheal Sembello - Maniac
Guns N’ Roses - Sweet Child O’ Mine
A.R. Rahman - Kun Faya Kun


To conclude this review, I have nothing else to say except that the Aurora is a literal detail monster, not by sounding sharp, lean, or offensive in any way, but by thoroughly and carefully tuning it to sound more natural and professional in terms of technical and tonal performance, which it does flawlessly. I'm completely captivated by the sound signature and the detailed focus presentation, which allows for clear vocals and instrument presentation while being expansive and airy and not affecting the bass's effect on the overall mix. This IEM has my wholehearted approval for anyone who does not want to spend more for details like TOTL IEM but at a third of the price; nevertheless, folks who want warm and more coherent or smooth sounding IEMs ought to try these first before making a decision.

Last edited:
  • Like
Reactions: MD Rohit and Harias
MD Rohit
MD Rohit
It's have really good speed and mid bass have good impact to


500+ Head-Fier
7HZ AURORA: The Technical Adept Shimmering One
Pros: ● Durable composite shell structure.
● Regardless of its size, it fits well to my medium size ears due its smooth contours thus it provides better passive noise isolation.
● That metal pattern banding look on its faceplate looks pretty gorgeous.
● Tri-brid driver set-up has excellent cohesive performance.
● Like all midranger sets, This set has a lot of accessories.
● Premium-quality stock cable with modularity feature.
● Its new stock ear tips have the potential to be one of the best in the market.
● A well-balanced mild U to U-shaped tuning
● Reverberating and vivacious bass response.
● Fairly textured, dense and energetic midrange presentation.
● Perhaps it has some vocal versatility on it, excellent on tracking some tenors, countertenors, mezzo-sopranos and sopranos.
● Good for instruments with some metallic timbre like brasses and some woodwinds.
● Bright, airy and sparkling treble response.
● One of the most resolving sets that I've heard in the midrange segment.
● Outstanding overall technical capabilities, from sound/speaker stage up to the layering and separation.
Cons: ● Definitely not a neutral sounding one due to its coloured tuning.
● Instances of slight sibilance especially on sibilant-laden tracks.
● While it is not to be considered as strident, the energetic and tinny sound might be bothersome to some treble sensitive folk.

7Hertz or 7Hz is one of the audio companies that has its paradigm shift moments in the audio landscape in 2021. If you are a long timer in the audio enthusiast scene, who will ever forget their first product, the 7Hz Timeless which was considered as the gamechanger of the planar IEM market and a dual dynamic driver basshead-favoured set, the LEGATO.


To be honest, I only have a few product reviews on 7Hz items that I've published so far and this content will be a third one. This product that will be featured here is their latest midrange product and compared to other 7Hz products that I've reviewed in the past, this one is quite different.


This is 7Hz AURORA, their latest product that will cater the midrange segment and it is a hybrid driver set-up IEM earphone. This set has three types of drivers that were implemented inside and these are dynamic driver, new generation micro planar driver and balanced armature driver. Each type of driver was assigned to a specific part of audio frequency as it has its own distinctive electro-mechanical performance. The 12mm dynamic driver has a composite material on its diaphragm as its delivers a clear, deep and rich bass quality while the customised dual balanced armatures (probably a newer generation of Bellsings) is capable to deliver a crisp, clear and brimming sound on the midrange frequency and then the new generation micro-planar driver (I have some intuition that this might a flat panel driver but need some more confirmation about this particular driver) will add more clarity, well-detailed on its resolution and copious amount of brilliance air. It seems that all these drivers were connected into three-way crossover circuitry for smoother, coherent, seamlessly flat and less distortion on its frequency response curve.


In regards to comfortability, despite its large frame for an IEM, the AURORA can give a very comfortable wear and comfort to my lugholes that I was able to wear it on long listening sessions. Passive noise isolation is quite excellent on this one as it really seals off some external noises from the outside.


The drivers and other components were encapsulated in a composite shell chassis in which the cavity base is made of an opaque 3D-moulded imported resin while its faceplate is a metal alloy with some titanium filament to give distinctive pattern-like banding on some steel forging process. The general dimension of the shells are on the large size just like most multi-driver hybrid sets and it has three ventholes on the top part for escaping some excess air pressure generated from its high performance dynamic driver. Regarding its interlocking mechanism for cable connection, it uses the standard 0.78mm bi-pin connector as it is the most stable and easier to detach.



As for its stock cable, it is truly a premium grade cable which is quite thick, durable and supple that it offers a less susceptible on entanglement. This one has 4-core gold-plated monocrystalline copper wires that were shielded with PVC insulators that are twisted and braided, and it has a modularity feature where we can change its termination plugs for output versatility that most modern audio devices have. The available modular termination plugs are 3.5mm single ended and 4.4mm balanced that were angled into a L-shaped form.


As for product packaging, the AURORA has a medium-sized rectangular box with some illustrations and information prints like basic specification and company addresses. The contents inside were well-arranged and organised as it gives a pleasant overall presentation.


These are the following contents inside of 7Hz AURORA's packaging box:
  • Pair of 7Hz AURORA IEM transducers
  • Stock cable
  • A white-coloured pill-shaped carrying case
  • Ear tips casing
  • A pair of medium-sized balanced bore ear tips.
  • 3 pairs of narrow bore ear tips in different standard sizes.
  • 3 pairs of new generation of 7Hz high quality flexible silicone ear tips in different standard sizes.
  • User's manual

In addition, I would like to introduce the latest 7Hz ear tips and they are made of pliable high quality silicone ear tips which gives an improvement of its brilliance extension, dynamic range and an increase of soundstage perception. It really offers me a very comfy feeling while having an excellent grip into my ears due to its tacky surface.


The 7HZ AURORA is actually easy to drive as it will amplify a good amount of audible volume level even from a device with decently normal gain output. But powering up on this set on the sources with a better amplitude level will sound even more fuller and vivid. I would like to share about this IEM on pairing and synergy on some sources, if I paired it to a more warmish-neutral or balance-neutral sources with some specified audio ICs like AKMs and Cirrus Logics, there are some noticeable smoothness and subduing those “digital glares”.


As for its tonality, The AURORA has a mild U to U-shaped (depends on the ear tips) sound profile with somewhat balanced presentation in all parts of the frequency range.


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


The bass response of this set is reverberating, precise, tactual and clean. It shows the quality of its bass region that makes this set's defining tuning. While it appears that it focuses more on subbass presence, it still balanced out with the ample texture on its mid-bass to give some semblance of authority and slam.

The deep, vibrant subbass presence can be perceived clearly on how it responds from subbass-focused instruments like low tone bass guitars, synthesisers, octobasses and drum machines. An adequate mid-bass texture somehow gives a sufficient note weight on instruments like bass kick drums, bass guitars, double basses, bass trumpets and male vocals like bass and bass-baritones. Bass kick drums have resonant, rumbly and sustaining sound on every stroke that even it can cope up with the fast double bass kicks on extreme metal tracks, bass guitars and double bass have rasping, sombre and resonant as both sets can be an accompaniment with music ensembles, the former instrument is for modern genres like rock, jazz and pop while the latter is for classical, operas and orchestras. Bass trumpets have metallic and a less fuller sound as it should have on its usual register, and as on male vocals, while it doesn’t have that depth and dark tone to give that guttural and booming voice but at least it has an ample weight with little vibrato to give some dense and wool-like sound on bass and bass-baritone vocals.


As on how it renders its midrange presentation, it is quite discernible on how it is slightly a bit notch on the overall frequency range of this set but it has a well-balanced texture on its note weight to give some heft and density on instruments and vocals with an energetic and shimmery sound on it to add more clarity and openness on high-pitched female vocals, strings and some woodwinds.

On male vocals, baritones have a smooth, velvety and lushness on their vocals which are excellent on both light and lyric types of baritone voice although while other types of baritones like Kavalier baritone, Verdi baritone, dramatic and noble baritones sounds somehow natural but they are a bit too mellow, milder and less powerful as these voices needs more warm and note density. Tenors vocals are excellent on this one as all tenor voice types either it is leggero, lyric, spinto, dramatic and heldentenor have a spiciness, brassy, dazzling and tinny sound on them while countertenors have a graceful, tender and softness on their vocals albeit a tad brighter to this set's energetic tuning nature.

As on female vocals, while contraltos have this smoky and full voice on this set, I wish that they have more weight and depth on them as it is a typical timbre characteristic on this particular vocal type. Mezzo-sopranos have those intense and bold sounds while maintaining a velvety and tender vocals as they convey a melodic and soothing quality. Soprano vocals are probably the AURORA's most strongest forte on how it depicts the quality of this particular vocal type whether it is coloratura, lyric, soubrette or dramatic ones as they sound crystalline, silvery and shimmering.

On how the instrument sounds on this set, it appears that they all sound organic and detailed as it is able to capture some of its tonal colouration but some added brightness. Strings instruments like guitars, violins and cellos, there's a crisp, presence and bright sound on every plucking on the notation strings of guitars, while the violins have a sparkling and vibrant sound on every motion on its bowstring and a clear, lively and incisive sound on cellos. When it comes to woodwinds, flutes have bright, rich and silvery sound, have intense and brilliant sound, clarinets have bright and expressive sounds that evokes some pastoral theme on some orchestral tracks and saxophones have lively and reedy sound on them. As for brass instruments, trumpets have brilliant and vivid sound while trombones have penetrating and metallic sound, horns have a resounding, brilliant and metallic sound, and tubas have resonant and rumbling sound on them. Then on percussives, snare drums have clear, precise and sharp sound on every stroke, tom-toms have resonant and reverberating sound albeit it somehow lack of warmth, field or tenor drums have majestic, sonorous and reverberating sound on them, plate bells have some metallic and rich of overtones on them and kettledrums have dry, rumbling and substantial sound. Pianos have a well-balanced sound as it has a bright and even tone on its characteristic.


Probably, one of the highlights of the AURORA's tuning to showcase its treble response. It is definitely on a brighter side of tuning but not that too intense or glaring that might ruin the overall balanced sound of this set. It has some emphasis on the upper-mids up to the presence part of the treble region to give a definition, detail and clarity on vocals and instrumental attacks. Despite the mild boost on those particular regions, I don't hear any stridency and the sibilance is kept under control although in some sibilant-laden tracks, I've encountered some occasional hissing sound. This type of tuning should take caution by some treble-sensitive folks out there due to its energetic and intense tuning of this set.

On the brilliance part of the treble, there's a copious amount of harmonics and well-defined sparkle and excellent treble air extension. On how it affects the tonal colour on each corresponding musical instrument, cymbals have bright, metallic and brilliant sound while hi-hats have a shortened buzz and sizzling sound. Glockenspiels on either mallet-types or keyboard variant, have this shimmering and brilliant sound on them and celestas have bright and lustrous sound that gives those “heavenly” and royal ball-like atmospheres.


As I ascertain regarding this set in terms of technical facets, this is truly its strongest asset on why this set is such a remarkable performer in these aspects. We could clearly perceive its vast, spacious sound field with wide lateral span, excellent height reach and good depth distance from front to rear.

It does project an atmospheric and three dimensional stereo presentation where I can accurately locate the placement of instruments and singer(s) in a well-layered soundscape with excellent separation on each element.

The cohesiveness of its tri-brid drivers works pretty well on how these drivers work in unison with a homogeneity performance. Dynamic driver has fast transient to deliver a pristine bass response while the balanced armatures gives a smooth yet detailed output that works in support with added airy ambience from the micro planar.

Resolution capability wise, both macro-dynamics and micro-dynamics are commendable on this set as it shows a solid note texture while having a sharp definition of micro-detail retrieval on how it extracts the nuances of notation attacks, vocals ends and room effects like reverberations.



  • AFUL PERFORMER 8 has a hybrid driver set-up consisting of a single dynamic driver and seven (7) balanced armature drivers. Unlike the Aurora, it doesn't have micro planar driver and its shell chassis is entirely made of medical-grade resin shell with a sandstone-like colour theme and has a smaller size compared to the AURORA which makes it more suitable to all ear type sizes. While it also has quite well-accessories like the AURORA and also has a premium quality cable but it doesn't have a modular termination plug feature.
  • As for tonality, it has a mild U-shaped sound profile but in some way it has an almost balanced-neutral type of sound that I'm quite adhered to. Compared to the AURORA, it has a bit tighter bass response, a less colouration on timbre and more natural sounding vocals and instruments on its midrange presentation and smoother and even treble response albeit it has less airy extension.
  • On technicalities, the PERFORMER 8 has a bit narrower and less spacious sound/speaker stage if it is compared to the AURORA. But the rest of most technical performance, it has a similar capabilities collated with the compared set.

  • This is probably the closest one that I currently have in my collection of multi-hybrid driver set-up and I can definitely compare it with the AURORA. QUINTET also has a micro planar driver aside from dynamic drivers, piezo-electric bone conduction driver and balanced armature drivers that were arrayed inside. It also has a composite shell chassis like the AURORA although it is more compact and its faceplate is quite more minimalist. Knowing KIWIEARS, they are a bit meagre in terms of accessories and its stock cable seems decent but doesn't have a modular feature.
  • This set has a mild U-shaped sound signature and it seems it has less coloured sounding compared to the AURORA. It has more subbass-focus bass response as it has more rumble with a decently textured midbass just to give enough slam, a linear and more neutral midrange presentation with a hint of transparency and a bright treble with good sparkle and air on it.
  • On the facets of its technical capabilities, while it has a pretty wide sound/speaker stage size, my main concern was its depth as it is quite lacking in my opinion. But at least it has a remarkable stereo imaging presentation, layering, separation and coherency. It seems that it has a sharp micro-detail definition but its macro-dynamics is less solid.

To sum up my assessment about this product, for the past few days, I'm quite impressed with the overall performance of the 7Hz AURORA as it gives me that engaging factor to enjoy its coloured tuning. The most thing that I truly amazes me was it's overall technical performance as if it reaches some of the best midrangers and probably even some TOTLs that I've tested so far, spacious sound/speaker stage, atmospheric stereo presentation, layering or whatever technicalities we know to determine its performance of playback.

While there are some improvements in terms of tonality and its timbre as there are some noticeable colourations like a bit too energetic that causes some tinny and brazen sound characteristics to some vocals and instruments as it might be an issue to some treble-sensitive folk. But with its balanced tuning with good bass quality, transparent, vivid and spacious vocal presentation on the midrange and a detailed, sparkly airy treble response, these particular tonal aspects are enough to outweigh those concern unless if you want a neutral head, treble-sensitive or wants a more colouration on its particular sound profile.

7Hz AURORA is now available at LINSOUL, if you are interested in this product, there's a provided unaffiliated link below.


For more 7Hz product review, check out the following items that were outlined with links.





PLUG TYPE: MODULAR 4.4mm, 3.5mm

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

Alison Krauss -When You Say Nothing At All *
Jade Wiedlin - Blue Kiss**
Led Zeppelin - When The Levee Breaks **
Mountain - Mississippi Queen *
Queen - Killer Queen **
Guns N' Roses - Patience *'*
Eric Clapton - Tears in Heaven '*'
Sergio Mendes- Never Gonna Let You Go '*'
Pearl Jam - Daughter **
Roselia - Hidamari Rhodonite *
Assassin - Fight (To Stop The Tyranny)*
Celtic Frost- Visual Aggression *
New Order - Blue Monday *
The Corrs- What Can I do (unplugged version) *
Jimi Hendrix Experience - Voodoo Child *
The Madness- Buggy Trousers *
Metallica - Motorbreath **
Mariah Carey- Always Be My Baby *
Destiny's Child - Say My Name *
Malice Mizer- Au Revoir *
Mozart - Lacrimosa *
New York Philharmonic Orchestra - Dvorak- Symphony 9 " From the New World." *
Eva Cassidy - Fields of Gold (Sting cover)*
Michael Jackson - Give In To Me *
Exciter - Violence and Force *
Diana Krall - Stop This World **
Debbie Gibson - Foolish Beat *'*
The Sisters of Mercy – Lucretia My Reflection**
Suzanne Vega – Luka **
Lauren Christy – Steep *
Ottoman Mehter - Hucum Marsi *
Diana Damrau - Mozart: Die Zauberflöte*
Type O Negative - Black No.1 *
Felix Ayo - Vivaldi: Presto **
Three Tenors - Nessum Dorma *
Mercyful Fate - Witches' Dance *


I am not affiliated to 7Hz  nor receive monetary incentives and financial gains as they provide me a review unit for an exchange of factual and sincere feedback from yours truly.

Once again, I would like to send my gratitude to MS. KAREENA TANG of LINSOUL for providing this review unit. I truly appreciate her generosity and trust towards me and other reviewers.

Last edited:
MD Rohit
MD Rohit
Are you using phone for taking photos?
@MD Rohit yes. And photography aren't my strongest thing at all :)


New Head-Fier
7HZ AURORA review of tribrid iem by ICYGENIUS 🎧
Pros: Beautiful appearance of the headphones and an excellent set of accessories included
Very energetic and dynamic sound delivery
Literally detailed and analytical tribrid monster
The sound stage is wide with excellent immersion
Powerful and textured bass with good saturation
The mid bass has a dedicated punch and the kick has a good attack
Mid frequencies are very driving with rich resolution
The upper mids are emphasized and give a more exciting highlight to the drums and vocals
High frequencies are detailed and very refined
Cons: The front panel collects fingerprints, you will have to wipe it
Hello friends!
Today in our review we will look at amazing tribrid headphones from the 7hz company worth $400!
They arrive in a very nicely designed medium-sized box that contains the company logo, an image of the headphones themselves and the name of this model Aurora.
And at the back are the technical specifications, and the sound is controlled by a 12mm dynamic driver responsible for reproducing low frequencies, and here we were also supplied with two custom armature drivers for mid-frequencies, and all this is complemented by a planar micro driver with a diameter of 6 mm, responsible for reproducing high frequencies, and the sensitivity is 105 decibel and they got 30 ohm impedance.



Let's take a look at what's included!
- Excellent set of ear tips in a transparent case
- Good branded case for storing headphones
- Excellent heavy copper cable with 2 pin connectors and a modular system of replaceable plugs here we have both 3.5 and balanced 4.4 jacks.
- Manual for use



And this is what the 7hz Aurora headphones look like, made of darkened medical resin, and they have an extremely interesting and rare front panel design that shimmers very beautifully in the light.

They received a standard 2-pin connector and next to it they gave us three compensation holes back.
And at the bottom there is a large inscription AURORA and channel markings.
The sound guide here is quite short but has a clear edge for better fixation of the ear pads and a gold insert.
And despite the rather large body of this model, they fit perfectly in the ears, even with the included ear tips, or with any other type of Divinus and Tangzu Sancai, the fit here is quite deep and everything is in perfect order with sound insulation.



How do these headphones sound?
And now, friends, we have come to the most important part of the review, namely the analysis of the sound of the 7hz Aurora tribrid headphones, and here everything is very familiar to me from the point of view of the approach to tuning, since there is a powerful and accurate low-frequency boost by as much as 10 decibels, with a neat transition from the midbass region to the midrange frequencies right up to that very familiar gain in the upper midrange region, and the high frequencies here have excellent extension.

Low Frequencies:
The low frequencies here are presented as super massive with deep sub-bass, excellent transparency and simply a gorgeously highlighted attack, the bass here does not sound relaxed or smeared and we have a very clear and highlighted kick and a clear punch in the mid-bass, which should especially please bassheads , since recently there have been few such bassier headphones in my reviews, and now the 7Hz Aurora just allows us to remember that same rolling and percussive bass, and for such a voluminous and pumped-up low end, respect from me.
Mid Frequencies:
But at mid frequencies it’s even more interesting, they are presented as very energetic with excellent weight and drive in the guitars, truly gorgeous airiness and excellent separation of images, and the presentation here does not feel dry or monitory at all, but on the contrary, it is a little warm, with a slight emphasis on upper mid to make the drums and vocals sound more prominent and exciting and I know that many of you like this less neutral and relaxed approach to tuning, and I can understand you perfectly, especially in comparison with the more neutral Tangzu Nezha headphones that play much more relaxed with less emphasis on the upper mids and such powerful drive and energy especially in the heavy genres of rock or metal, they definitely won’t give you anything for that, here’s an Фurora please.
The vocals here have excellent resolution without any hint of an armature timbre or its residual overtones, there is also excellent transparency of the voice and its image is perceived to be pushed a little forward along with the drum part, and this gives in many compositions a very pleasant immersion effect and more. enveloping deep stage design, and the drum part here with very confident emphasized transient processes simply perfectly complements this whole large-scale stereo panorama picture.

High Frequencies:
But at high frequencies here everything is exactly as I like, there is killer technology and simply insane analytics due to which these headphones literally disassemble heavy instrumental genres into separate parts and layers, and I note that all this is done extremely tactfully through the use of a planar driver, but Friends, agree that what is equally important is the detail in this area , and personally, I like it so that all the percussion cymbals sound very detailed in the overtones and have tails from reverberations that are not hidden anywhere, and various micro details and nuances, I think they should definitely be clearly audible and distinguishable, especially if we are already talking about these are top-end headphones in this price category, and they definitely work out this range as it should , and the excellent expansion of this area has definitely borne fruit here, which cannot but please me because of this, with all the trails and residual after-sounds, there is complete order here, even if the presentation here is not as neutral as in Nezha, but the resolution and increased detail and transparency here are simply mine respect, and of course I am glad that there is no hint of a fake resolution, and everything here sounds completely harmonious and correct, and at the same time, the most important thing is that only positive emotions remain after prolonged listening.
My conclusion on this headphones:
7hz Aurora are truly unique headphones due to the use of different types of emitters with extremely interesting settings and, most importantly, the output has a very driving, super emotional and bassy presentation, which should satisfy your taste. If you are tired of neutral and imposing headphones, then this is definitely your choice.
Aliexpress DD-Audio Store:
I will be glad if you subscribe to my YouTube channel and watch this full review on 7HZ AURORA!
Last edited:
  • Like
Reactions: audiophilius
Wow that price so big :sweat_smile: but this tuning and design looks interesting

d m41n man

100+ Head-Fier
7hz Aurora : Serenading without the Shout
Pros: • Balanced sound signature with a bit upper mids boost, really sings with female vocals
• Pianos and guitars strums/plucks are a treat
• Lightweight and comfy despite the somewhat larger-than-average shells
• Nice fit and with good sets of eartips
• Good quality modular cable (3.5mm SE and 4.4mm BAL)
• Best of all, very resolving and impressive technicalities for the price
Cons: • Weirdly enough, a bit average to just good with male vocals
• Borderline sharp or peaky in the lower treble with some tracks
• Planar or off-natural timbre especially noticeable in busy tracks

7hz have been making strides with their low-key yet very competitive releases so far. As a fan of the original Timeless all the while still keeping it in my collection, they have established their name as synonymous to budget-mid tier recommendations akin to the Timeless in the planar space to the Zero & Zero 2 in the budget-tier. The Sonus and the Dioko have their fans while the Legato has its niche basshead fans. I have to say I admire their release-window pacing and their attitude towards not fully launching the Timeless II without being confident of it which should be a pattern some chi-fi companies should take a note of, instead of churning out half-baked efforts. Now with the Aurora standing as their flafship to date and some good positive feedback from the recent Canjam SG behind it, the Aurora seems poised to be another success under 7hz's belt. Let's take a look into this nice-looking set shall we.


Packaging and Inclusions
The Aurora comes in a slide-out box with an attractive slipcover showing the product namesake without relying on any waifu. Upon sliding and taking out the inner box, you are then welcomed by a nice-looking faux white leather flip-top case which contains the IEMs along with 6 pairs of eartips + case holder (3 pairs similar to Acoustune AET07 and 3 pairs of their new first-party produced tips similar to S&S) . You are also then graced by the nice-feeling, no tangle premium cable with 3.5mm SE and 4.4mm BAL modular termination plugs. I have to say that the stock cable itself felt really nice and premiumly hefty. Just the exact nice set of accessories to fit your needs with satisfying quality.



The 7hz Aurora out-of-the-box is a beautiful looking set, with shifting colors of the somewhat Damascus finish hoghlighting the faceplate. The shell itself is a dark translucent one that does not feel cheap or would crack soon but it is very lightweight that makes you wonder how were they able to jam a tribrid configuration of a 12mm DD and a 6mm planar along with dual BAs onto this setup.


Sound and Comparisons
The 7hz Aurora will impress you and outright give you some 'wow' moments upon pushing that play button that will immediately justify the price you pay for it. Its sound signature is of a balanced signature with somewhat of a upper-mids boost that makes it vocal-foward in a number of tracks and genres especially with jpop, female vocals, and mainstream. Ariana Grande, milet, and LiSA are definitely singing on these sets. What definitely complements is set is its execution of acoustic tracks and instrumentals. Pianos are lovely with the Aurora. Those key hit reverbs are really felt, Steinway & Sons would be proud 😁👌 Guitar plucks and strums sound alive and energetic. Best of all, the overall implementation is very detailed and airy. The Aurora is very resolving, jamming a lot of information at you upon playback yet imaging is ponpoint. Hence, it is somewhat its own disadvantage as others may find it fatiguing and even borderline bright in the upper mids going to lower treble. Playback of genres such as heavy metal, rock, and EDM is ranging from ok to quite busy as it does have a bit of trouble handling those with finesse because of the mix of planar timbre and busy resolution. Bass is punchy but may not have enough subbass to satisfy those who love the rumble, I wouldn't say they're deficient though. Just more than enough. On a similar note, orchestrals, concertos, and classicals also shine on this set. Microdetails pop out and are apparent and movie soundtracks are a delight to listen to. Male vocals and jazz though are a mixed bag and kind of a double-edged sword with these, some remarkably good and some are a bit dull and rough, weirdly putting some male vocals in the back despite being vocal-forward with the majority. An immediate comparison and reminder upon listening to these would be the AFUL Performer8, both being very detailed with copious amounts of resolution while playback of your music in a delicate balance. The Performer8 though is more neutral in tonality and soinds more cohesive compared to Aurora's sometimes off-put timbre but I would say the bass quantity and quality is just the right proportion for sets priced at this level while both execute treble in a very airy and extended manner. Staging is also very well-executed with width and depth going to the Aurora even if vocals do tend to be in the front, other elements are well distributed across the stage.



7Hz has a winner here with the Aurora, being a good balanced set that works really well with a lot of genres while being the utmost delight with female vocals, pianos, and acoustic guitars. I do recommend an actual listen with these as they could be a tilt sharp or shouty for your music preferences and if the sometimes unnatural timbre may put you off but if not, it's on the other extreme end towards enjoyment as it is very proficient with its strengths. It's also a fresh set thay set itself as a standout among the repetitive chi-fi tuning and Harman implementations. Very nicely done 7hz and if you do decide to launch the Timeless II properly, I do hope that it's going for something revolutionary worthy of a sequel but plays to its strengths like this.

IEM set has been listened via the Sony ZX-707, AK Kann Alpha, and Cayin RU7 separately using the stock eartips over the course of multiple genres across FLACs (16bit&24bit) and streaming (Tidal). The 7hz Aurora is available in Linsoul for $399 -


Last edited:


Headphoneus Supremus
Pros: Generously accessorized, with modular cable to boot
Solid build
Decent comfort despite larger shells
Above average isolation
Moderately easy to drive
Balanced U-shaped tonality
Very clean sonics
Textured, fast and tight bass
Transparent midrange
Good sparkle in treble
Excellent technicalities - imaging, soundstage and micro-detailing are a highlight
Cons: Shells are on the larger side and are prone to smudges
Metallic timbre noted in upper frequencies
Not for bassheads

I would like to thank Linsoul for providing this review unit.

The 7Hz Aurora can be gotten here: (no affiliate links).



Driver configuration: 1 x 12 mm composite diaphragm dynamic driver + 2 x custom balanced armature drivers + 1 x 6 mm micro-planar driver
Frequency response: 5 Hz - 40 kHz
Impedance: 30 Ω
Sensitivity: 105 dB/V @ 1 kHz
Cable: 2-pin, 0.78 mm; single-crystal copper cable; 3.5 mm and 4.4 mm modular terminals
Tested at: $399 USD

Aurora 9.jpg


Other than the IEM, these are included:

- 4 pairs of 7Hz H07 silicone eartips
- 3 pairs of long nozzle silicone eartips
- Plastic case for eartips
- Cable
- Cable terminations for 3.5 mm and 4.4 mm modules
- Carrying case

The accessory spread is generous, and definitely befitting of a MidFI IEM.

Aurora 2.jpg

While no foam tips are included, we have 2 variants of silicone tips. First up, we have 4 pairs of 7Hz H07 silicone tips - which are short-bore - and these present a balanced signature. Interestingly, 7Hz has debuted a long-nozzle eartip - which looks similar to the DUNU S&S types; these are also extremely balanced in sonics, but with improved soundstaging and isolation.

These S&S doppelgangers are my favourite pairing, as they furnish an expansive soundsage without overly boosting any part of the frequency response. However, they have longer nozzles and a sticky feel, and are not as soft in the ears as the other H07 silicone tips. The eartips come in their own plastic case, which is a nice touch.

Aurora 1.jpg

We have a 2-pin single-crystal copper cable provided, and this comes with distal 3.5 mm and 4.4 mm modular terminals, for pairing with single-ended and balanced sources, depending on your needs. This cable is well-braided and thick, with minimal microphonics. A chin cinch is added for practicality, and the L-shaped terminals are useful during field-use.

Aurora 3.jpg

Last but not least, we have an ovoid leatherette carrying case. The innards have webbing and soft cushioning, while the externals are tough enough to withstand compressive forces.

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


Aurora 5.jpg

The housings are fashioned from 3D-printed medical-grade resin. The faceplates contain titanium filaments, which are unique to each housing - thus consumers will get their own individualized IEM so to speak. The shells have a mirror-like, psychedelic and colourful tiger-striped motif, which is certainly eye-catching. They may be prone to smudging, but build quality is top-notch.

Aurora 8.jpg

The earpieces are quite large to house the numerous drivers. Thankfully, despite the bigger dimensions, comfort is still agreeable, due to the mere 5 g weight of each side. I had no issues wearing the Aurora for hour long sessions, with the smooth inner surfaces not poking the ears.

With the long-nozzle S&S look-alike tips installed, isolation is above average. I did not find any driver flex on my pair, which is a sign of good acoustic airflow.

Aurora 7.jpg


The Aurora is a tribrid, boasting of the following eclectic configuration with a 3-way cross-over:
  • 1 x 12 mm composite diaphragm dynamic driver
  • 2 x custom balanced armature drivers
  • 1 x 6 mm micro-planar driver
The DD handles the bass, with the pair of BAs covering the full range. The micro-planar settles the upper treble.


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

This IEM is moderately easy to drive. While weaker sources may juice it, the Aurora does benefit from amplification, in terms of soundstage, dynamics and bass control.


7Hz Aurora.jpg

Graph of the 7Hz Aurora via IEC711 coupler.

Tonally, the Aurora showcases a U-shaped, balanced sonic profile. This is quite genre agnostic, and should cover most consumer demands.

This is a sub-bass focused IEM. Bass extends deeply, with good rumble felt. However, it is not a bona fide basshead IEM in terms of sheer quantity. Quality-wise, the Aurora provides a textured, fast and tight bass, with not an ounce of mid-bass bleed. Even with complex bass tracks, the Aurora handles these with aplomb; case in point, for Sting's Englishman In New York, the Aurora aces the fast double bass solo in the middle of the track, where many other sets may fall apart.

The lower midrange is a tinge recessed, but this frequency band is very transparent and clean due to no bass impingement. This allows excellent layering and pinpointing of instruments and vocals on a dark background. On graphs, there appears to be a peak at the 3ish kHz region - I personally hate over-zealous upper mids - but on actual listening at moderate volumes (as per the Fletcher Munson curve), I found this region forwards without overt shoutiness, which is a tough line to balance. This slight peak actually furnishes clarity and resolution without being an ice-pick, and as we will read below, the technicalities on this IEM are top-notch.

The Aurora has good treble sparkle, but once again, this area is nicely balanced, in bestowing air but not veering to harshness. Sibilance is minimal, and the Aurora manages to get cymbal strikes and high-hat hits just right - they are present but not jarring. Of note, there's a 6/7 kHz dip in the treble which is something of a trade-secret used in TOTL tuning to decrease sibilance and splashiness without overly damping resolution.

As alluded to, the Aurora is a technicalities champ. Micro-detailing is very well portrayed. Soundstage width and height is expansive, especially when amped, and the Aurora sounds grand, yet with a very clean soundscape. Music never sounded compressed or claustrophobic. Imaging and layering is accurate, and technical junkies will be pleased to be able to locate instruments easily in the headspace.

Unlike other very technical sets, the Aurora doesn't sound sterile and maintains a decent note weight. However, where the Aurora loses some marks in my book, is in its timbral accuracy. In the upper frequencies, there is a slight hollowness to notes, especially for acoustic instruments like brasses and woodwinds. Vocals have a nasal twang too - this is a bit more prominent in female vocals.


Due to its very specialized driver configuration, I do not have any like-for-like IEMs with this setup in MidFI territory. Nevertheless, the Aurora will be compared against some other benchmark MidFI products.

Aurora 4.jpg

Moondrop Variations

The Variations is a Harman measurebator's gold-standard. The Variations has a prominent mid-bass scoop out, so it sounds much thinner and anemic than the Aurora in this region. The Aurora is a bit brighter in the treble.

The Variations is slightly weaker in micro-detailing and imaging, but has a bit more natural timbre and a slightly bigger soundstage and better layering.

I would consider them sidegrades at the MidFI segment. The Variations is about $120 USD more expensive though, and there are widespread reports of QC issues dogging this IEM (my Variations faceplate dropped out spontaneously without trauma, for example LOL).

Letshuoer EJ07M

The EJ07M is also U-shaped, but has a bit of a darker treble, and a thinner lower midrange.

The EJ07M has a hair better imaging, but has weaker instrument separation, soundstage and micro-detailing. In fact, the EJ07M's soundstage is notably small and claustrophobic on doing A/B comparisons back-to-back with the Aurora.

The EJ07M suffers from horrendous driver flex, which may be a deal-breaker for some.


Aurora 6.jpg

For folks wanting a balanced U-shaped pair with stellar technical prowess, the 7Hz Aurora is one to mull over. Technical chops are a highlight, in particular for imaging, soundstage and micro-detailing. Bass is very fast and clean, though not at bona fide basshead amounts, so it is a case of quality over quantity. The transparent midrange allows instruments and vocals to breathe, with good treble sparkle noted.

In terms of non-sonic tangibles, the Aurora is generously accessorized, with a modular cable for myriad source matching. Isolation is above average with relatively fuss-free drivability. While the shells are on the larger side, comfort is surprisingly decent in view of the lightweight shells.

For the ardent timbre-freaks amongst us, a negative would be a metallic timbre noted in the upper frequencies for female vocals and acoustic instruments. By and large, this is a bit more prominent for acoustic genres, and may be mitigated somewhat with tip choice or perhaps source pairing.

All things considered, the 7Hz Aurora belongs in the MidFI conversation, doing most departments well.
Last edited:
Good review! Sounds like a better Phoenixcall or Dark Phoenix.


New Head-Fier
7𝑯𝒁 𝑨𝒖𝒓𝒐𝒓𝒂 𝑹𝒆𝒗𝒊𝒆𝒘: 7𝑯𝒛’𝒔 𝒎𝒊𝒅𝒓𝒂𝒏𝒈𝒆 𝒅𝒂𝒘𝒏
Pros: Good accessories
Beautiful faceplate design
Great build quality
Clear overall sound
Ample and competent bass
Forward Vocals
Highly detailed treble
Cons: Slight metallic timbre from time to time
Sibilance in a few instances
Nozzle length and size can limit ear tip options
Scratch-prone faceplate
7𝑯𝒁 𝑨𝒖𝒓𝒐𝒓𝒂 𝑹𝒆𝒗𝒊𝒆𝒘: 7𝑯𝒛’𝒔 𝒎𝒊𝒅𝒓𝒂𝒏𝒈𝒆 𝒅𝒂𝒘𝒏

|| 𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 ||

After 7HZ’s Timeless runaway success along with their Salnotes Zero dominating the budget segment, they for the most part occupy the $20-$200 price range with some offerings in between those two like the Sonus and the Dioko.


The Aurora will be 7HZ’s 2nd attempt in penetrating the more pricier side of the hobby with a $399 price point. This price range is often occupied by the likes of Thieaudio Hype, Moondrop’s Blessing, and along with Tanchjim’s Oxygen series.


7HZ packed the Aurora with a 12mm DD+2BA+6mm Micro-planar magnetic driver to produce a wide frequency output. The dynamic driver is for the low frequencies, balanced armatures for the midrange, acting as an intermediary and lastly, the 6mm micro-planar magnetic driver for the the high frequencies

|| 𝗗𝗶𝘀𝗰𝗹𝗮𝗶𝗺𝗲𝗿𝘀 ||

I am in no way, shape, or form affiliated with the brands I review and do not give out preview privileges.
This set is sent in exchange for an honest review. There is no material or financial incentive for me to do this review and I guarantee no exchange has been done by both parties to influence or sway our opinions on this product.

My thoughts and opinions are of my own. My experience will entirely differ from everybody else. The contents of this review should not be considered factual as this hobby heavily leans on subjectivity. YMMV.

I don’t do rankings or tier lists as they can get outdated immediately as a reviewer can change their thoughts of a product to a certain extent. If you do want a recommendation then feel free to reach out so I can help out


𝗜 𝗮𝗺 𝗻𝗼𝘁 𝗮𝗳𝗳𝗶𝗹𝗶𝗮𝘁𝗲𝗱 𝘁𝗼 7Hertz 𝗻𝗼𝗿 𝗿𝗲𝗰𝗲𝗶𝘃𝗲 𝗺𝗼𝗻𝗲𝘁𝗮𝗿𝘆 𝗶𝗻𝗰𝗲𝗻𝘁𝗶𝘃𝗲𝘀 𝗮𝗻𝗱 𝗳𝗶𝗻𝗮𝗻𝗰𝗶𝗮𝗹 𝗴𝗮𝗶𝗻𝘀 𝗮𝘀 𝘁𝗵𝗲𝘆 𝗽𝗿𝗼𝘃𝗶𝗱𝗲 𝗺𝗲 𝗮 𝗿𝗲𝘃𝗶𝗲𝘄 𝘂𝗻𝗶𝘁 𝗳𝗼𝗿 𝗮𝗻 𝗲𝘅𝗰𝗵𝗮𝗻𝗴𝗲 𝗼𝗳 𝗳𝗮𝗰𝘁𝘂𝗮𝗹 𝗮𝗻𝗱 𝘀𝗶𝗻𝗰𝗲𝗿𝗲 𝗳𝗲𝗲𝗱𝗯𝗮𝗰𝗸 𝗳𝗿𝗼𝗺 𝘆𝗼𝘂𝗿𝘀 𝘁𝗿𝘂𝗹𝘆.
𝗢𝗻𝗰𝗲 𝗮𝗴𝗮𝗶𝗻, 𝗜 𝘄𝗼𝘂𝗹𝗱 𝗹𝗶𝗸𝗲 𝘁𝗼 𝘀𝗲𝗻𝗱 𝗺𝘆 𝗴𝗿𝗮𝘁𝗶𝘁𝘂𝗱𝗲 𝘁𝗼 Linsoul Audio 𝗲𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗹𝘆 𝘁𝗼 𝗠𝗦. 𝗖𝗮𝗿𝗶𝗻𝗮 𝗖𝗵𝗲𝗻 𝗳𝗼𝗿 𝗽𝗿𝗼𝘃𝗶𝗱𝗶𝗻𝗴 𝘁𝗵𝗶𝘀 𝗿𝗲𝘃𝗶𝗲𝘄 𝘂𝗻𝗶𝘁. 𝗜 𝘁𝗿𝘂𝗹𝘆 𝗮𝗽𝗽𝗿𝗲𝗰𝗶𝗮𝘁𝗲 𝘁𝗵𝗲𝗶𝗿 𝗴𝗲𝗻𝗲𝗿𝗼𝘀𝗶𝘁𝘆 𝗮𝗻𝗱 𝘁𝗿𝘂𝘀𝘁 𝘁𝗼𝘄𝗮𝗿𝗱𝘀 𝗺𝗲 𝗮𝗻𝗱 𝗼𝘁𝗵𝗲𝗿 𝗿𝗲𝘃𝗶𝗲𝘄𝗲𝗿𝘀.


| 𝗣𝗮𝗰𝗸𝗮𝗴𝗶𝗻𝗴 𝗨𝗻𝗯𝗼𝘅𝗶𝗻𝗴 & 𝗔𝗰𝗰𝗲𝘀𝘀𝗼𝗿𝗶𝗲𝘀 |

The Aurora comes in a decently sized black cardboard box that will most definitely protect it during logistics. It has a render of the IEM itself on the front aligned with some text and branding. The back of the box contains an exploded overview of the internals of the Aurora along with its specifications. All the manufacturer's details are listed here as well.


The unboxing experience is nothing new and is straightforward. Sliding off the initial illustrated cover, and removing the top cardboard will showcase the free included case on the top with an ear tip container on the bottom. Both of which are surrounded but a dense layer of foam with a cardboard top for protection. Underneath that layer is another box containing the cable, paperwork and modular plugs. The IEMs themselves are situated inside the included case and are also surrounded by dense foam that is form-fitted for the said case.


𝗔𝗰𝗰𝗲𝘀𝘀𝗼𝗿𝗶𝗲𝘀 𝗯𝗿𝗲𝗮𝗸𝗱𝗼𝘄𝗻:

7HZ Aurora driver shells
4-core L-type modular gold plated SPC 2-pin cable
Both 3.5mm SE and 4.4mm BAL termination plugs
White faux-leather case
Eartip container
3 pairs of 7HZ eartips (S/M/L)
4 pairs of normal-bore tips(S/M/M/L)


The cable, although thick and somewhat stiff, feels premium and high quality, not to mention it being modular as well, but didn’t include a 2.5mm termination plug for some reason. The ear tips especially the 7HZ branded ones are really great, it reminds me of that one DUNU S&S tips whilst the other set of eartips looks to be either clones or are actually KB Ear 07 or AET 07 but they do feel nice.


The case included feels great as well, it can fit the Aurora with its stock cable and some accessories with no issue, although the color can be a cause for dirt or grime being more obvious in the long run.


Overall a very solid set of accessories. It doesn’t have those quirks, accessories or features that allows the user to somewhat modify the sound like swappable nozzles, or switches but the quality of each inclusion is especially notable.


| 𝗕𝘂𝗶𝗹𝗱 & 𝗗𝗿𝗶𝘃𝗲𝗿 𝗖𝗼𝗻𝗳𝗶𝗴𝘂𝗿𝗮𝘁𝗶𝗼𝗻 |

The Aurora has 2 with differing materials, one metallic faceplate, and a medical-grade black translucent resin for the rest of the body. It feels great in the hand with a nice heft to make it feel premium and substantial. The faceplate is quite a stunner as well, it has this pattern very reminiscent of damascus steel patterns with a mixture of glossy gold and blue coloring. Despite the color choice, it doesn’t stand out as much and is quite subdued still.


Design-wise, the Aurora hinges its appeal on the faceplate. The name of the Aurora is quite apt for the type of pattern that the faceplate has which is similar to an aurora borealis. Overall, I really like the design of the Aurora, it has a nice mixture of being minimal and lowkey whilst at the same time having its own character to make it stand out against the sea of IEMs. However all this design will require a little bit of maintenance. Because of the glossy nature of the faceplate, it can be prone to hairline scratches.


Onto the shape of the Aurora. 7HZ made the Aurora have this universal fit, with no grooves or fins but instead it has this continuous body for a more friendly fit. The 2-pin connector is located on the top of the IEM and 3 vents positioned in the rear are present. The nozzle of the Aurora is quite stubby, meaning it is quite short and thick/wide. It doesn’t protrude as much from the body but it has a depression and a lip on the nozzle to accommodate ear tips and keep them in place.


7HZ was able to pack the Aurora with a 12mm DD+2BA+6mm Micro-planar magnetic driver setup. Each type is dedicated to executing a specific frequency range, the dynamic driver for the lows, the balanced armatures for the midrange, and the micro-planar magnetic for the high frequencies. This is definitely a stacked set of drivers, yet some sets have more niche or not-yet-mainstream drivers like bone-conduction drivers or even piezo-electrics for the same price range.

| 𝗜𝘀𝗼𝗹𝗮𝘁𝗶𝗼𝗻 |

Even with the universal fit, and the abundance of vents located on the rear side of the IEM, the Aurora has ample isolation to keep you immersed during playback. I find this useful during my bus trips as of late, I didn’t need to push that high of a volume just to block out noise from the outside world.

| 𝗖𝗼𝗺𝗳𝗼𝗿𝘁 |

With the straightforward fit, the Aurora fits snug and comfortable in my ears. I never found the need to remove it after some time to let my ears rest or take a breather. The fit is also snug enough that it won’t easily tangle even with drastic head movements. I would also like to note the occlusion effect on the Aurora doesn’t seem to be better or worse compared to most IEMs.


The nozzle can be quite an issue, it is quite short and thick, making me go for an ear tip that is generally longer than the standard ones, fortunately, 7HZ included an ear tip with a longer base to help with this issue

** 𝟳𝗛𝗭 𝗦&𝗦-𝗹𝗶𝗸𝗲 𝗘𝗮𝗿𝘁𝗶𝗽𝘀 (𝗦𝗺𝗮𝗹𝗹) | 𝗞𝗶𝘄𝗶𝗘𝗮𝗿𝘀 𝗔𝗹𝗹𝗲𝗴𝗿𝗼(𝟰.𝟰) | 𝗔𝗽𝗽𝗹𝗲 𝗗𝗼𝗻𝗴𝗹𝗲 (𝗟𝗶𝗴𝗵𝘁𝗻𝗶𝗻𝗴) **

| 𝗗𝗿𝗶𝘃𝗮𝗯𝗶𝗹𝗶𝘁𝘆 |

Despite the abundance of drivers and even a presence of a planar magnetic driver, the Aurora can be surprisingly powered by my Apple Dongle and give off enough
volume, however a better source is recommended as I notice slight improvement going from that dongle to a better source.

|| 𝗦𝗼𝘂𝗻𝗱 ||

The Aurora is quite an engaging set, it has this U-shape sound that is very revealing and transparent with ample bass to give it some slam. It has the bits and bobs to be a versatile set, I can see doing well or somewhat good in most genres.


| 𝗕𝗮𝘀𝘀 |

Lows of the Aurora is quite good. It may not wow you in terms of quantity but it will definitely win over the quality of the bass. Midbass kicks are fast and very quick decay. They feel very impactful for their amount and don't sound sloppy. Subbass is present, it goes deep for a nice sense of rumble. Again, not the most abundant, but it doesn’t sound messy and is very well kept.

| 𝗠𝗶𝗱𝘀 |

As per HBB’s observation in his video review of the Aurora, it does have this forwardness of the vocals that makes them standout. Speaking of which, vocals sound full and well bodied. Feminine vocals sound a bit more forward than their masculine counterparts but both have good air, detail and extension. Sibilance can be a concern especially for sibilant voices still but it is controlled for the most part.

Instruments sound nice and precise on the Aurora. Like the vocals, the instruments have warmth to make them sound less thin. Extension and details are also great for instruments. The upper midrange gain that can make it sound metallic from time to time.

| 𝗛𝗶𝗴𝗵𝘀 |

Treble of the Aurora is very well executed. It has a very forward treble with the cons of sounding harsh or fatiguing. It has excellent detail retrieval and is very revealing in general. The sense of air is very good as well along with extension, it never once sounded as if sounds were cut-off prematurely.

Be careful with the gain though, despite it not being harsh and fatiguing in general, pushing the gain and volume way past the recommended amount will definitely have diminishing returns.

| 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹𝗶𝘁𝗶𝗲𝘀 |

Another excellent performance for the Aurora. Perceived staging is quite wide and open. Imaging, layering and separation are also excellent, all sound sources have their own distinct and distinguishable position during playback and even on the most hectic segment of songs.

This is a wonderful recommendation for any analytical use case and can even be good immersive sounding set in a pinch

|| 𝗖𝗼𝗻𝗰𝗹𝘂𝘀𝗶𝗼𝗻𝘀 ||

Definitely a noteworthy performer, the Aurora provides all the bells and whistles one can want on an IEM. It doesn’t defeat others on one specific use case, but it does win over in terms of versatility. This is a definitive example of a “master of none, jack of all trades” kind of IEM.


There are still faults of course, if you are looking for a warm set that give you that relaxing, and thick sound, then the Aurora may not fit that description, but if you are looking for something that has ample and good quality bass, without compromise on the technicalities along with not being harsh, then the Aurora might fit that need.


Maybe one of the clear faults that I could give the Aurora is the metallic timbre from time to time and maybe the nozzle being quite stubby might limit your options in terms of ear tips to use with it.


  • #14.png
    6 MB · Views: 0