FiiO FA9 - Reviews
FiiO FA9 - Chameleon
Pros: Excellent tonal balance
Custom like fit
Unique and well implemented tunable crossover
Great selection of accessories
Good quality cable
Lack of distortion
Cons: Dynamically shy
Stage lacks sense of space
No balanced cable
FiiO FA9 - Chameleon

This review was published at the printed edition of hxosplus magazine and now I have translated it for Headfi.


FiiO currently has two series of premium in ear monitors the FH where "H" indicates that it is a hybrid headset and the FA where "A" indicates that all units of the headset are of the balanced armature type.
The top model - so far - of the first series is the FH7 while the brand new FA9 is the flagship of the FA series.


The FA9 is an iem with six units of balanced armature drivers two more than the previous model the FA7.
Two pieces (SWFK 31376) for the very high and high frequencies, two (EJ 33877) for the medium and two (HODVTEC 31618) woofers for the low all made by the famous Knowles and specially configured for the specific needs of FiiO.
In addition to the necessary four-way electronic crossover, FiiO has added to the FA9 an extra long 80.6mm sound tube which acts as a passive low-pass filter and ensures the proper homogenization of the sound of the individual units as well as the better behavior of the low frequencies.

Tuning system

We all know that the FH7 sports the ability to micro adjust the audio profile through a passive filter that screws into the nozzle of the iem.
This feature also exists in FA9, only here FiiO has taken a completely different approach.
The passive filter has been replaced by three micro-switches located on the body of the iem that directly interfere with the operation of the electronic crossover by changing its frequency response.

The first switch adjusts the impedance and sensitivity of the FA9 with two available values - 16Ω / 110dB for ease of driving with the disadvantage of noise sensitivity or 32Ω / 113dB for more stable and clear sound.
The second and third switches are the ones that regulate the cut off frequencies of the crossover.
There are two working options for each one while all combinations are possible so we are talking about four separate sound profiles.
Switch two on is treble boost while off is treble normal.
Switch three on is reduced bass and increased mids while off is increased bass and reduced mids.
Add to this the two positions of the first switch and we have at all eight possible configurations to fine tune the FA9 to our taste.

Build quality

The outer shell is made with the method of 4th generation DLP 3D printing with the advantages of being very light at 6.2g per unit plus the ultra compact anatomical shape for a perfect fit like a custom monitor.
Particular attention has been paid to the choice of the construction material that is a special plastic made in Germany with a medical certification for its anti-allergic properties and discoloration resistance.

Accessories and cable


The cable that comes with the FA9 is of high quality with reinforced MMCX connectors and eight - hand woven - strands of high purity monocrystalline silver plated copper.
As we are accustomed with FiiO the accessories provided are more than enough.
We get 15 pairs of sound adjusting ear tips including Comply and Spinfits plus two carrying cases.
One luxury storage hard case with self closing cover padded with faux leather and one soft carrying case from neoprene.
A special tool for cleaning and adjusting the micro switches is also provided.
Now we are nitpicking here but at this price point a second balanced cable would be greatly welcomed.

Into the sound

The fit and comfort are extremely good - much better than the FH5/7 or the FA7 - with negligible weight and no inconvenience in long term use and excellent passive noise attenuation.
It is a custom like experience one of the best we have ever tested.

The FA9 is very easy to drive at any given position of the first switch and we have opted for the 32Ω variant when we used two of our benchmark devices the FiiO M11PRO and EarMen Sparrow.

After trying all the possible sound profiles we ended up listening mainly with the switch two set to off and three to on since it seemed to be the most tonally correct combination.

In this setup the FA9 sounded very balanced with an even frequency response quite close to the ideal.
A very natural (not neutral) tone presentation throughout the whole spectrum and with an excellent instrument timbre , areas in which it is better than both the FA7 and the FH7.
The right amount on the bass without never feeling that something is missing in balance with the rest of the spectrum.
All acoustic bass instruments are rendered perfectly and bass heads can use the bass boost option to emphasize it a little.
Quality is good with very satisfying layering and excellent definition but it lacks a bit in slam compared to a good dynamic driver but then it compensates with the total lack of distortion even at very loud volume settings.
The middle area sounds crystal clear and with the right articulation and voicing.
There is a smooth emphasis as needed so that there is liveliness without ever sounding tedious or out of tune.
High frequencies are masterfully tuned the best we have ever heard from a FiiO iem till now.
The FA9 has the liveliness and speed that characterize the balanced armature drivers and it sounds very tonally accurate without being sibilant or bright.
We can hear all the fine nuances and micro details in perfect harmony with the whole presentation without being sterile or analytical.
Driver speed is excellent and the decay over time is very good resulting in a very natural sounding percussion and high pitched instruments.
If we would like to complain about something that would be the lack of ultimate dynamic behavior and the slight absence of body and 3d layering.
The stage is quite open and airy able to present dense music tracks with success but we thought that it lacked in spatial accuracy and pinpoint positioning.
Despite that few shortcomings mentioned above we found the whole presentation very satisfying with high levels of enjoyment without severely lacking in technical ability and above all with a great natural tonal accuracy.

The active crossover equalization system works very well and enables the user to fine tune the FA9 without exaggeration and above all without loss of total quality.
A very smart and well implemented idea from FiiO allows the FA9 to adjust to our personal tastes like a Chameleon.

At the end

The FiiO FA9 is a step up in the right direction as it is a much improved version of the FA7 and in some ways even better than the FH7.
In our opinion it is the best tuned iem of FiiO till now with excellent sound qualities able to rendered perfectly all kinds of music.
Add to this the perfect custom like fit with great noise attenuation and above all the unique and very successful fine tuning system and we got in our hands a clear winner.
FiiO once more again have surpassed their selves and we wonder what is coming next.
Very highly recommend especially if you value natural tonal accuracy.

Important note

Our actual rating is 4.7 / 5 but Headfi rating system will allow only half increments in rating.

Copyright - Petros Laskis 2020.
Hi , I am preparing a review but for our printed edition.
When I find some spare time I will translate it for Headfi.
Tip - It is an amazing performer.
Cat Music
Cat Music
Do you have a link on your website where you can share your reviews? I'm interested
Pros: Smooth tonality with a nuanced macro-resolution, Neutral yet musical, Clean Bass-mids-treble, beautiful vocal, non-fatiguing treble, tunable switch make it versatile, generous accessories and nice packaging
Cons: Not very exciting to listen too, not as crisp as we could expect, lack of separation between sub and mid-bass, timbre lack a bit of texture, a rather intimate soundstage

SOUND: 8/10
VALUE: 8/10
FIIO often collaborates with Knowles balanced armature drivers company, in fact, it looks like all their IEM that use balanced armature are from Knowles.

From the single customized BA used for FIIO FA1 to the FH7 Hybrid flagship using 4BA, they earn lot of valuable experience implementing different balanced armature models from this great American micro acoustic company.

In my audiophile journey, I have tried multiple IEM using Knowles BA, should it be multi BA from less known companies like Audiosense and Akoustyx or Hybrid iem like IKKO OH10, DUNU DK2001, and FIIO FH7, I’ve always been please by the natural timbre of Knowles drivers. I tend to prefer their BA over cheaper Chinese BA like Bellsing and even older Final Audio BA used in F series which can sound thinner, brighter, or more artificial.

In the other hand, when badly implemented, the Knowles BA can sound overly smooth and lack in the attack, this is mostly due to distance placement from nozzle end as well as multiple filters and dampers used. Knowles permit to tune the sound with different filter material, some will overly affect attack sharpness. Some models are brighter than others too, and my theory is that it’s because they are of a lower quality like the 33518 model.

My favorite multi-BA IEM is the Audiosense T800 that uses 8 Knowles balanced armature, so when I was aware FIIO was launching a flagship 6BA universal custom in-ear, my curiosity was extremely high as well as my expectation. I know that the mids and highs would most probably be great, but my worry was about bass even if FIIO uses an ultra-long sound tube that promises excellent bass performance. From the specs sheet, no Knowles BA drivers can go lower than 200hz, but the Audiosense T800 uses the exact same 31618 bass dual woofer driver and achieve a very authoritative bass performance with a chunky impactful slam. I was really surprised to hear a completely different low end with the FA9, with a leaner and more natural extension, but the less weighty impact and forward presence. Those two IEM aren’t similar at all, the T800 being more V shape while the FA9 being more neutral and balanced.

One of the FIIO FA9 highlights is its sound switch, which is a novelty in the FIIO IEM line up. This ”new” way of tuning your IEM to your liking was the most intriguing feature for me and I will share more thought about this in this review, but the switch combination permit you to have 8 different sound flavors.

Priced 500$, the FA9 enter a very competitive price range where I became more severe to judge the benefits return it gives. The sound switch sure is a plus in terms of investment value, but it means nothing if the overall tonality and technicalities aren’t impressive. Let’s see in this review if the FA9 should be seen as an End Game Flagship IEM or more like an audiophile IEM collector caprice.

The FIIO FA9 can be bought for 499$USD on their official Aliexpress STORE.


Acoustic Principle:Closed
Drivers:6x Knowles Balanced Armatures
Impedance:16-32Ω @ 1kHz
Frequency Response:15Hz – 40kHz
Sensitivity:111 dB/mW
Cable:1.2m interchangable 3,5mm MMCX cable


FiiO FA9 - 6 Knowles BA IEM w/3 sound adjustment switche ...

The FA9 use 6 Knowles BA, or more likely high-end dual BA. The SWFK-31736 dual tweeter BA is used for treble, the EJ-33877 for mid-range, and the dual woofer HODVTEC-31618 for low frequencies. These are flagship balanced armature that are very costly, for example, the 31736 sells between 70$ to about 40$ when bought in high quantity. Another particularity of FA9 acoustic engineering is the inner tube design that are connected to BA and acts like passive tuning, these earphones use the longest tube ever done for connecting the bass BA to the nozzle end, at 80.6mm of length it’s very puzzling to wonder how they do to fit it in rather small housing of FA9, it permits to avoid interference with other BA and condense the bass so it became amplify and more powerful. As well, it uses a 4-way crossover that can be tweak via the 3 tuning switch by changing different crossover paths affecting different frequencies response zone.





When you present your product as flagship, it should have an impressive presentation with great care to details so the full purchase experience feels respectful towards the consumer reception. FIIO sure gives a lot of effort to achieve a luxurious product experience and the whole unboxing process shows it well. FA9 boxing is classy, sober, and practical. It comes in a glossy black big box that has a distinctive look. When opened, the shinny IEM are beautifully presented and star of the show. When you pull off the first package cover, the presentation is again well done with a very informative ear tips display (and holder) that have nothing less than 14 different pairs of ear tips, including real Spinfit, bi-fangle, silicone and memory foam with description under it like Vocal, Balanced, Bass so you know how it will affect the sound, this is a very welcome display! The included carrying case is very fancy too, made of real leather and with enough space in it to include an extra cable or another IEM or…well, another carrying case as included with the FA9. Yep, the number of accessories is near over-kill, but I would have preferred an extra balanced cable or modular cable than an extra carrying case. Anyway, we are already very spoiled with FA9 accessories.






The FA9 uses a medical-grade resin plastic of very high quality, which is smooth and easy for the ears. They are of medium size for a multi-BA scoring that many drivers and will fit any ears. The housing share is long and thick with an organic shape that is well-conceived for a universal custom in-ear. The IEM is quite light due to both housing and drivers’ low weight. Unlike some other UIEM, the nozzle length is both enough long and small in circumference so you don’t have issues finding the right ear tips. Connectors are solidly embedded into the shell without any asperity that can create easy disconnection. The switch system is perhaps the only fragile part even if well built because I feel it’s where water damage can occur if you walk under the rain or sweat a lot, as well, as you need a tool to use them it can perhaps cause scratching to the body, but thanks to high-quality resin, it’s not easy to scratch at all.


CABLE is the very same LC-3.5C model included with the FH7, it’s of very nice quality, thick and flexible, beautiful, and with solid mmcx and all-metal L shape jack. It really feels tolt, but as I feel the FA9 benefit from the balanced output, it would have been incredible to have the FIIO modular cable included, even if it makes the price 50$ more.

DESIGN is not revolutionary and uses a common shell that is very similar to the Audiosense T800 or whole FIIO FA series, still, this kind of housing is among my favorite due to good isolation, comfort, and durability. The FA9 is strictly thought to be used with cable over-ear, even with a cable that has no ear hook it does not tend to fall from ears do to an enough deep fit. The molded organic shape of the housing is well thought and does not have any protuberance that can feel uncomfortable or too invasive in the ears.

ISOLATION is above average and you don’t need to crank your music at high volume to enjoy noise-free listen. Noise leakage is extremely minimal and among the best in its class. Unlike Dynamic drivers, the BA tends to project sound forward without background reverberation and helps to avoid high noise leakage.



It’s not clear if the GAIN switch just affects impedance or sensitivity too, anyway from the specs it’s 16ohm when ON and 32ohm when off, both surely with rather high 111db of sensitivity. I found the FA9 to sound more open and lively when using 32ohm impedance with a powerful DAP, while it’s brighter-shoutier at low impedance. Drove with JDS LAB ATOM amp can produce slight bass distortion at very high volume but sound edgier in attack and weightier in bass slam with the more holographic soundstage. The FA9 is very sensible to the audio pairing you make, powerful clean DAP with slightly bumped bass can do a good match as I can conclude using the Ibasso DX90 which add extra bass and sparkle.


The sound switch system is what makes the FA9 special and FIIO state you can have 8 different sounds signature by tweaking the crossover via the switches. Did it mean it’s like owning 8 different IEM? Not really because overall tonality, technicalities and timbre stay the same, it’s just about little boosting or taming of certain frequencies range here.

Switch 1 ON=lower impedance and louder sound. Brighter tonality and slightly more aggressive attack. Less clean and little more grainy than with higher impedance.

Switch 1 OFF= Impedance is now 32ohm instead of 16ohm. Sound is more clean, organic and nuanced with fluid transparency. No harshness to be found.

Switch 2 ON (S1+S3 OFF)= Slightly more V shape sound with extra bass and treble, mids are still clean but less dynamic and lively.

Switch 2 and 3 ON (S1 OFF)= More analytical sound with fowards mids and extra upper treble boost that enlight mico-details and percussions.

Switch 3 ON (S1+S2 OFF)= Bass is leaner but still clear and articulate, mids are more present and lush and treble is well balanced.

Switch 2 and 3 OFF (S1OFF)= Warmer signature with biggest bass focus , relaxed mids and treble.



While the sound switch system does tweak the sound a little, I feel ear tips are even more influential. The switch cannot improve soundstage, imaging, or bass impact but the ear tips can so I suggest you try as much as you can and stick with the one opening the more the sound. For me, the BASS tips is the best and it opens the sound and permits the bass to be better articulated. The Spinfit is nice for extra punch and energy but makes soundstage a little tunnel-like. Everybody has different ears canal shape, so I’ll just say that it looks like the FA9 like to have ear tips with a big nozzle hole but not too long length.



Gear used: Xduoo X20 (balanced and unbalanced), Ibasso DX90, X20+JDS LAB Atom, Xduoo X3, Tempotec V1+Audirect Beam2 (favorite pairing is with Ibasso DX90)

It’s always a little complicate to review an IEM with multiple tuning possibilities, should it be with changeable nozzle filter or tuning switch, you just can’t make a different in-deep sound review of every tuning tweak because it will be very redundant in numerous aspects like timbre and overall tonality. Firstly, let’s be realist, you do not get 8 different IEM with the FA9, while the switch do boost or lower certain frequencies range, it’s no drastic change but more taming or not a certain part of the sound. Firstly, has a purist, I tend to want the less compromise sound and I found that putting all the switch off offer the more open, clean and detailed sound. FIIO states it ”boost” bass or treble when On and could tame the bass but the difference is very minimal, you still have impressive bass extension whatever tuning switch you play with.

So, OVERALL TONALITY is lean, warmish and smooth with a hint of lower bass emphasis, clear full mids and liquid delicate treble. Tough with high sensitivity the sound can be a little brighter, it’s never rough or aggressive, the bass extension for BA is very well controlled and quite realist, and perhaps among the more natural one I heard in muli-BA whatever price range, but it’s not particularly impactful in mid-bass punch but very thigh in control. The mids are very present and well separated, offering clear vocal with a soft edge to it. Treble is very crisp and super well controlled. Tonal balance is excellent, all BA working in fluid tandem and never feeling dissected, it reminds me a little the impressive transient response of a full beryllium high-end IEM like the Final Audio A8000, but tamed in impact and less detailed in texture. Timbre will never aggress you with unwanted grain or fuzzy density, it’s natural yet very polished. Transparency is another impressive aspect of FA9, it permits to have good articulation and separation as well as a good sense of deepness. In fewer words, the FA9 offer an organic clean sound that fully cover all frequencies range without really coloring the sound apart from little bass and treble bump when you listen to them for the first time you aren’t hit with any particular emphasis but rather slowly immerse into a fascinating life-like sound experience. It really feels like FIIO tries to tune the FA9 to please everybody (or offend nobody) and put the tuning switch to be sure bass and treble lover can have extra enjoyment, so it’s not a bright or warm IEM but a Lukewarm one.


TONALITY is near neutral with natural extension in low and mids and slightly sharper presence in the treble. The sound is smooth and warm until mid and high treble which adds a hint of brightness that mixes organically with the sound spectrum, not unbalancing tonal fluidity by extracting too much texture details in the upper register. Smooth, effortless, balanced and liquid in transient response, you feel in life-like musicality with extra comfort due to a soft sound pressure edge (in high sensitivity it’s a hint more shouty-brightly).

TIMBRE has great transparency, a nuanced and subtle texture and a nice sense of 3D density that do not have the disadvantage of opaque thickness. It’s polished without sounding tamed or blanked. I rarely heard this kind of timbre, apart from real life and my brain is really tricked here!

SOUNDSTAGE has average wideness that permits music to feel just enough out of your ears. Don’t get me wrong, it’s wide enough, but not very tall and slightly deeper than all the rest so you have a rather intimate presentation in the end. It’s important to note that ear tips fit will greatly impact on spatiality result (you can read more about this in eartips section).

BASS is very unique and like nothing I ever heard before, I think this will be a love or hate affair due to its dense smoothness and soft impact. We have very good articulation with a longer resonance that tends to thicken the sub line without affecting overall resolution, the extension is a little wobbly and not as natural as the end of bass impact found with a dynamic driver, it sounds more similar to the bass presentation of planar IEM or Headphones than a balanced armature too. Still, as said, the Audiosense T800 use very same dual woofer driver and have a more impactful and weighty slam that is nearer to DD driver than BA, while I do understand the use of a sound tube to keep bass separated from other sound spectra, I feel the long tube travel do darken both it’s texture and impact lead. It’s the type of bass that is kept in the back, mid-bass hit is not very punchy and forwards and kick can even be subdued in music mix because of sub boost, so I would not consider the bass perfectly balanced. Still, it’s far from being a flat anemic bass and the punch can become quite heavy when asked for like with the boosted kick in Trap Rap or electronic, so while the weight can be there, it’s just not very snappy with kick definition. As said, the texture is soft, so for slap bass or acoustic bass lover this can be a little underwhelming in resolution, add the compressed extension to this and your favorite bass line might sound little hollow and even undercooked. FA9 bass does better with pop, electronic, classical and some rap than jazz, rock. It’s not the fastest bass even if it’s super well-controlled and extremely clean, in term of speed, impact and even textures the Dynamic driver used in FH7 do better. To some extend, FA9 is unpredictable and finding myself banging on ”BB” from SHYGIRL is a great example of how the sub-bass can gain authority when needed, it’s presence with the digital bass instrument is pretty intense and feel like having a sub stock in the back of your head, all this without affecting vocal crispness and melody line clarity.

MIDS are gently forwards, superbly clean and transparent, smooth in timbre and have a very realist tonality. To my ears, they are the highlight of FA9, while the resolution is high, it’s never harsh or bright and it has an effortless naturalness to them. They aren’t particularly thick, but far from thin too due to a lush airiness to them that make them well extracted from rest of music. Sure, some will lack the fluid bass foundation that offers chunky male vocal gauge, but you will at least be able to understand every lyric word with high intelligibility. The instrument like violin and saxophone sound tonally right and have a wide airy presence while piano lacks a bit of weight in note impact, but this isn’t surprising as I found BA to struggle with any instrument that has sound produced by a hit, should it be an acoustic piano hammer or drum kick that need well-rounded bass and lower mids transient response for proper weight impression or percussions that need post-impact sparkle. Timbre is a hint liquid and polished in upper mids so you got a high level of clarity that is very polite. I will repeat myself here that the bass doesn’t interfere at all with mid-range so it’s always ultra-crisp and what impress is how this sharp presence isn’t offensive and keep a mellow lushness, offering sweet vocal without lipsy texture or awkward sibilance. Every instrument benefit of this clarity and while the soundstage isn’t the biggest, the FA9 will never struggle to deal with busy tracks.

TREBLE is the sound frequencies part that can be the more tweaked with FA9, should it be by using low impedance mode, different ear tips, or treble boost. It follows the same tonal smoothening that offer an organic feel to the sound but it’s the most energic aspect of FA9 musicality nonetheless. One would think that due to multi BA use the FA would sound very detailed and even analytical, but it isn’t the case at all, it’s more about macro-resolution than micro-resolution here and you will not hear a tremendous amount of micro-details pushed forwards. Instead, we have well-layered transparency, full highs presentation that offers nuanced timbre and nice extra shimmer in upper highs that offer a full extension to percussion, harpsichord or violin. The attack is quite fast and snappy without feeling super edgy or aggressive. The FA9 delivers impressively thigh and realist percussions and drum rolling that will sure make smiling jazz lovers. Sure, with Boosted Highs switch ON, the tone of highs are brighter and more forward, but it’s never to the point of creating unbalance and feel rather flat as a whole, only very few time I heard upper highs resonance that was a little trebly. It’s not the kind of highs I would call sparkly as their not a lot of decay to them, so it lacks a bit of air to permit a better articulate definition. I think FIIO targets a specific house sound that can please everyone due to the inoffensive dynamic it offers, the whole sound feels relaxed yet the treble is full and revealing. Clarity is not forced, and as a listener, you feel comfortable for a long listen free of any fatigue. The FA9 deal easily with Classical Symphony, without omitting any instrument, it offers a fluid presentation with effortless macro-resolution.

BASS: 7/107.5/10
MIDS: 8/108.5/10
TREBLE: 8.5/108/10
ATTACK-DECAY: 7/108/10



VS FIIO FH7 (450$)

The FH7 is flagship hybrid earphones from FIIO, it has an all-metal construction and it’s bigger and heavier than FA9, making it a bit less comfortable. Like the FA9, it’s tuneable, but by changing nozzle filters instead of using a switch.

SOUNDSTAGE is more intimate in both wideness and deepness with FA9, the IMAGING has better transparency and layering but instrument separation isn’t as wide and easy to spot than FH7. BASS is lighter, slightly faster, and a hint more textured, mid-bass isn’t as punchy and weighty and lower extension lack naturalness and fullness of FH7. MIDS are slightly more forwards, but more intimate too, they are smoother, thinner and airier, not as edgy and full as the FH7 which have more upper mids presence bite. The TREBLE is more delicate and transparent, it will please the treble sensitive people but I personally prefer the more dynamic highs of FH7.

All in all, the FA9 offers a flatter and even more neutral sound than FH7, making them nearer to a softened Diffuse field target while the FH7 is nearer to brighten up Harman target. It’s less fun, smoother, and more mature sounding IEM than FH7.


The Fidelity is a high-end dynamic earphone, the construction is great but the fit is less comfortable than FA9. The cable is a little cumbersome and thick but has a changeable jack so you can use both 2.5mm balanced and 3.5mm unbalanced connection. This is something I regret about FA9, because FIIO do have a modular cable with changeable jack but didn’t include it with their flagship IEM. Anyway, all in all, both construction, comfort, and accessories are better with FA9.

SOUNDSTAGE is notably bigger in all aspects with the Fidelity and the IMAGING is more spacious because of this, offering wider space between instrument but not as much layering nuance as the FA9. BASS is more textured, flatter and thinner with the Fidelity, but it has a more aggressive tonality too that makes kick hit clearer, though with less weight. MIDS are brighter and thinner with the Fidelity and has more upper mids emphasis so while it can give extra attack grip to violin, the vocal sound less full and natural than FA9. Separation isn’t as good as FA9 too and the Fidelity will struggle more with a very busy track. TREBLE is sharper and more forwards with Fidelity, it offers hint more sparkle-decay but isn’t as thick and balanced as the FA9, the attack is less fast as the FA9 which is more problematic for complex percussions that can sound a bit hot with the Fidelity.

The DITA FIDELITY offers a more bright and energic tonality with more out-of-your-head soundstage but isn’t as well balanced and full sounding as the more laid back sounding FA9.

VS AUDIOSENSE T800 (300$):

The T800 is a multi-BA using 8 Knowles balanced armature that include some used in the FA9 like the dual woofer BA for bass (without the long sound tube). The construction is extremely similar, using the same resin plastic but a bigger housing. Due to the big size and a rather small nozzle length, the T800 is less comfortable than FA9 due to the tricky seal issue that affects the sound. In terms of accessories, I personally prefer the 8cores copper litz cable included with T800 even if construction doesn’t feel as durable, as a whole, again, FIIO is unbeatable for packaging and accessories.

SOUNDSTAGE is bigger and more holographic with T800, but not as deep. IMAGING is more lively and surrounding and have wider instrument separation but not as much transparency in layering capabilities. BASS is notably more boosted with T800, it has more slam and weight and will even please basshead while the FA9 is more controlled and well separated but lack a bit of punch. MIDS are less well balanced and neutral with T800, they are pushed forwards with the help of upper mids emphasis which makes them more lively but less natural and smooth than FA9, still, they have more texture and energic attack too, as well, male vocal are thicker. TREBLE isn’t as full and balanced as FA9, making the T800 strangely W shape compared to flatter FA9, the attack is more aggressive and micro-details are pushed more forwards too in upper high which can be problematic for treble sensitive people, the FA9 has a more natural treble that does not color as much the sound.

All in all, while I still find the T800 more fun, immersive and energic, I can still conclude that FA9 is technically superior in every aspect but soundstage here. The problem is that T800 wake you up while the FA9 can make you sleep.



FIIO really impress me this time with how maturely tuned is their FA9 IEM, it isn’t an easy task to offer such a well-balanced sound using that many drivers and the tonal cohesion are very fluid. I admire the new acoustic design and the use of a super long sound tube for the dual woofer BA sure worth my respect. I see the FA9 like a laboratory for new future tunings experiment that opens new doors for balanced armature sound projection. While the sound switch did not turn as useful as I thought due to overly subtle change in sound signature, I respect the effort and think it could be quite a plus for those enamored with the overall tonality of FA9.

For 500$, the FIIO FA9 offers a well-built universal custom that is very comfortable and has high passive noise isolation, incredible packaging with a lot of accessories and ear tips and a smooth neutral sound that is perfect for a long listening session. The FA9 isn’t a fun sounding iem and even if the bass dig deep it isn’t for basshead at all, it’s neither for the treble head, but perhaps more interesting for serious mids lover that search life-like vocal and instrument in this range. The resolution is high without sounding analytical or cold, it’s calm and limpid like a beautiful lake on sunset with water that is perfectly lukewarm for a relaxing and contemplative musical immersion.

For those who like serenely lush neutrality and enjoy IEM like Final Audio E4000 or wish that Final Audio B3 sound smoother, I think the FA9 can be an interesting step up to for even better macro-resolution and cleaner mids. While the FA9 isn’t a giant killer in terms of value, it offers a sound that became tastier and tastier with time, like a fine wine full of nuance to be discovered by the mature audiophile gourmet.
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Pros: Outstanding build quality – Smooth, natural sound with a good overall balance – Extensive accessory kit
Cons: Middling imaging near centre – Tuning system is not a gimmick, but the changes are fairly subtle – Pressure build up during insertion

Today we’re checking out something truly special, that being the flagship for FiiO’s armature-only lineup, the FA9.

While probably best known for their amps, dacs, and DAPs, FiiO has been humming along nicely with their earphone releases. Single dynamic, hybrids, and armature-only models abound. The FA9 is their new armature only flagship with some features that help set it apart from other products in the price range, like the use of all-Knowles armatures (one of which was custom designed for FiiO), a unique 80.6mm long sound tube, and an electronic tuning system via three switches built into the rear of the earphone.

I’ve been using it regularly over the last three weeks and have come away quite pleased with the performance, especially upon comparing to some strong competitors. Let’s take a closer look, shall we?


What I Hear I didn’t really know what to expect from the FA9 going in. While I’ve got plenty of experience with tunable earphones, they all use various physical filters to mask or release frequencies. Since the FA9 alters from the crossover itself, I was curious to see how effective it would be, and if it would end up as more of a gimmick than a useful feature. And since it’s much easier to flick a switch than fumble with tiny filters, would it be something that is actually used on the regular. I can tell you now that the switches are not a gimmick and ended up being useful, even if they were left alone more often than not.

Tuning Switches The FA9 features a tuning system that is still fairly novel. Unlike most which require swapping out various filters, the FA9’s sound can be changed with the mere flick of a number of very tiny switches, three in total. The first makes the FA9 easier to drive but also raises the noise floor. Personally I just left it off the whole time since I listen quietly and the FA9 doesn’t need a ton of power to get up to volume anyway. The second switch handles treble response. It doesn’t do much to the presence region but does add a few extra dB of life to the brilliance region making the FA9 a bit more lively and improving the sound stage slightly. The final switch handles midrange and bass perception. When off it raises the low end making the midrange feel less prominent. When combined with the 2nd switch in the on position, gives off the closest thing to a v-shaped signature the FA9 will output. Turn the 3rd switch on and the bass drops bringing forward the mids to make the FA9 a vocal powerhouse. Overall the switches do not make massively sweeping changes to the signature, but the alterations are definitely enough to be noticeable, especially if you make changes to one side and forget to alter the other. I’d be very curious to see just how far a company could take this tech if they wanted to make a truly flexible, jack of all trades earphone.

Listening with my preferred settings (1; off, 2; on, 3; off) Set up like this, the FA9 provided a very engaging sound that offered just enough low end thump and upper range sparkle to keep me entertained, regardless of what I was listening to.

Starting with the treble the FA9 provides a very smooth and refined experience that is not unlike what you would expect to hear from products a step up the price ladder. The brilliance region is subtly elevated and gives the FA9’s presentation clear sparkle and shimmer, though not to the point of nuking note weight or leading to ear fatigue. Lower treble sees a polite bump that compliments the upper range energy. Everything is presented with plenty of detail and excellent clarity with no smearing or bleeding of instruments/effects into each other, but falls short of being overly analytic. Notes are presented with a satisfying speed that sits somewhere been the uber quick attack and decay typically experienced with armatures, and the slower, more natural feel of a dynamic driver. Overall it is pleasant and just as capable with Eminem’s “Monster” as the Chicago Symphony Orchestra’s rendition of “Night Ferry”.

The midrange sits slightly back compared to the treble and in line with the low end, unaffected by any form of midbass bleed. With a small upper mid bump, vocals have a satisfying warmth to them and remain very coherent with neither male or female vocals getting preferential treatment. Such balance can be heard on the mellow, relaxing duet “Quando, Quando, Quando” featuring Michael Buble and Nelly Furtado. Alongside this, you can add the more varied vocal stylings of the RTJ boys, Big Boi, and Phantogram’s Sarah Barhel on Big Gram’s awesome “Born To Shine” and “Run For Your Life”. The good times continue thanks to the FA9’s outstanding timbre which is absent of the plasticy texturing or breathy dryness (a quality I actually like) common to armatures. Instruments sound as they should. Pianos have the right body with notes subtly lingering, guitars have the right amount of grunge and zip, and drums feel plenty rich.

Bass performance is where that 80.6mm long sound tube comes in, at least according to the marketing material. While I don’t have a version of the FA9 without that monster sound tube available for comparison, I can say that the FA9 kicks nicely when called upon. I’m generally somewhat underwhelmed with the low end presentation of Knowles products, but FiiO dialed the 31618 in very nicely. Extension is great for an armature with the FA9 able to provide a sense of visceral feedback often missing from armature-only earphones. While I find the texturing and detail fairly smooth, I could use a bit more grunge with bands like Tobacco and The Prodigy. For the most part there is enough information and depth provided to satisfy across various genres. In typical armature fashion things move quickly, though again not quite as fast as I’m used to from armatures, thereby giving the FA9 a slightly more natural presentation. This doesn’t hinder articulation though, with the FA9 easily taking on the crazy, messy bass lines oft found in heavy metal tracks.

Sound stage is where the FA9 pulls things back a bit. Sizing is good with plenty of width and moderate depth. This gives the FA9 adequate room to toss sounds off into the distance, but limits layering capabilities leading to tracks sounding less dynamic and diverse when facing some of the competition. Separation is quite good though, and I never came across any instances where the FA9 sounded congested or compressed. Imaging is about the only area where I could levy the term ‘underwhelming’ at the FA9. Just off centre (ex. eye-to-eye) there isn’t a lot of movement so subtle tracking from channel-to-channel lacks nuance. Move past this and it cleans up quickly. I personally don’t think any of this matters all too much with music, but if you’re planning to game with the FA9, or enjoy watching movies with earphones, it can be slightly distracting in my experience.

Overall I find the FA9 a pretty stellar performer. Their implementation of Knowles drivers for the low end has been handled very well, and the treble quality is outstanding. The sweet midrange is also plenty satisfying on vocal-centric tracks. Start playing about with the tuning switches and various ear tips and you can get a lot of mileage and variety out of this earphone.

FiiO FA9 - The Contraptionist.jpgFA9 & Friends.jpg
FA9 All Switches.jpg

Compared To A Peer (volumes matched with Dayton iMM-6)

Fearless S6 Rui (389.00 USD): Like the FA9, the S6 Rui features 6 balanced armatures per side, though Fearless left out any form of tuning system so you’re left to experiment with tips and EQ for that. Treble out of the S6 Rui doesn’t place as much emphasis in the brilliance region resulting in a less airy, less sparkly sound. More emphasis is found in the presence region giving the S6 an edge in detail and clarity at the expense of a drier sounding presentation with a hint of grain. The S6 sounds faster and more aggressive with instruments having more initial impact and a shorter decay, though it handles complicated passages no better. Mids on the S6 Rui are more forward compared to the FA9 (though you can bring emphasis more in line with the 3rd switch in the up position) where they do a better job of sharing space with bass and treble frequencies. The FA9’s mids are warmer and smoother with a slightly leaner feel. Where the S6 has the edge in detail in the treble region, the FA9 easily matches it in the mids, while also touting a more natural sound and realistic timbre. Bass on the two is very similar though I hear the FA9 as more linear with better extension, less mid-bass presence, more physical sub-bass, though neither offers dynamic driver levels of feedback. The S6 Rui’s low end doesn’t offer quite as much warmth and has a meatier, slightly slower feel to it. Texturing is pretty similar in that it is quite good. Sound stage size is comparable, though strengths are different. The S5 Rui lacks the width but provides more depth. It images better than the FA9 (due to that off centre vagueness) but doesn’t quite layer or separate instruments as impressively.

When it comes to build the S6 Rui is outstanding, but the FA9 has an edge in a couple particular areas. First is the connectors. Fearless went with a 2-pin system and while that is generally my preferred connector, this one is unreliable with a right earpiece that routinely detaches unexpectedly. Not an issue with the FA9’s rock solid MMCX connectors. The other area I prefer the FA9 is in the housing construction itself. The S6 Rui is just as neat and tidy inside, but it’s hollow. The FA9 is solid providing additional protection from drops and crushing. The FiiO’s metal grills also offer more protection from ear wax and gunk than the S6 Rui’s open sound ports. Fit an comfort is pretty much a wash. The S6 is a little thicker but not quite as long so it might offer a slightly better fit for smaller ears. The FA9 isolates outside noise more effectively.

Overall I prefer the FA9 thanks to it’s more natural sound and innate tuning capabilities.

Dunu DK-3001 Pro (469.00 USD): The DK-3001 Pro is a five driver hybrid so it’s not surprising to hear it bests the FA9 in the bass department, though the FA9 puts in a pretty darn good showing. I perceived the Dunu to have more emphasis in both mid and sub-bass with slightly better extension, impact, and texture, likely due to lack of treble to counter. The FA9 is slightly faster and more articulate with rapid bass lines. The Dunu’s midrange is thicker and more linear with a better balance in the presentation of male and female vocals. The FA9 sounds cleaner and more articulate though. Timbre is close with the Dunu’s armatures doing a better job with instruments versus the FA9’s more accurate vocal renditions. Treble out of the DK-3001 Pro offers less extension and sparkle in the brilliance region instead focusing more on the lower treble. The FA9 ends up with more space between notes and provides a lighter, more detailed, and airy experience against the DK-3001 Pro. Personally I prefer nearly every aspect of the FA9’s treble presentation, which is slightly more nimble to boot. Sound stage is also in the FA9’s camp providing a wider experience, though depth is pretty similar. Imaging is cleaner and more nuanced out of the Dunu and I found it to be slightly more layered but with similar levels of instrument separation.

When it comes to build they are both class leading examples so in my opinion it comes down to your preference for metal or acrylic, and your ear size. The Dunu makes the FA9 look positively massive and defies logic cramming by cramming five drivers (one of which is a relatively large 13mm dynamic), MMCX hardware, and a crossover into such a tiny housing. The FA9 is more stable and better isolating, though the size will limit who can wear it. The DK-3001 Pro is the more universal of the two in that regard. Each earphones’ cable is also outstanding. I prefer the FA9’s tighter braid and generally more durable feel, though Dunu’s Quick-Switch modular system gives it a clear edge in terms of flexibility. Instead of changing the cable entirely to access 2.5mm or 4.4mm balanced options as needs to be done with the FA9, you just swap plugs. FiiO has a similar modular cable out now, the LC-RE. It would be great if the FA9 came with it or a variant out of the box.

Overall I find these two to compliment each other quite well. The Dunu’s low end provides an experience the FA9 can’t match, while the FA9 provides improved treble quality and the flexibility of it’s inbuilt tuning system. My pick would be the Dunu, but it lines up slightly better with my personal tuning preferences.

HiFiMan RE800 Silver (599.00 USD): The RE800 is a single dynamic earphone with a signature that matches up nicely with the FA9 in the 1:down, 2:up, 3:up tuning setting, so I’ll be comparing in that layout. Starting with the low end, the FA9 is warmer and more emphasized with the RE800 besting it in terms of impact, extension, and texture. It also feels a bit quicker and even more articulate on rapid passages. The RE800 has slightly leaner, more detailed mids with very similar emphasis, until the upper mids. The FA9 brings in a hint more warmth and with it a slightly more natural tonality. The FA9 has a cleaner, better controlled treble presentation with a more even balance of upper and lower regions. The RE800 is more detailed and has a more accurate attack and decay pattern that really resonates with live recordings. Sound stage also goes to the RE800 which sounds slightly wider and deeper. Imaging out of the Hifiman’s single dynamic is cleaner and more nuanced with better instrument separation, though layering is in the FA9’s camp.

The RE800 is nicely constructed and made with nice materials but it wouldn’t feel out of place on the 50 USD product. The FA9 bests it in every way except fit which comes down to the RE800 being extremely small, light, and of a more traditional barrel shape. It can’t compete with the FA9 in terms of isolation or stability during heavy movement.

Overall I prefer the FA9’s slightly warmer, smoother, and more refined presentation.

Campfire Audio Andromeda (1099.00 USD): The Andromeda features five armatures per side and is one of my reference armature-only models. The FA9’s low end is slightly warmer and more emphasized with better extension. It has a smoother texturing and lesser impact when compared to the Andromeda, but it a little snappier and more responsive. Midrange presence is very similar with the Andromeda’s vocal clarity and coherence being a step up though slightly thinner. Timbre is also in the Andro’s court. Treble on the Andromeda is cleaner and but less linear with a heavier presence in the brilliance region. It provides more space and air without relying in a leaner, lighter note weight, and in general just sounds better controlled and more crisp. Sound stage is also firmly in the Andromeda’s camp, which is no real surprise given it’s somewhat known for it. The FA9’s stage isn’t quite as wide nor as deep, with imaging that falls behind (quite a bit just off centre). The Andromeda’s improved note spacing also helps it really stand out in terms of layering and separation, areas in which the FA9 is no slouch.

When it comes to build we find ourselves in a similar situation to the Dunu; it comes down to your preference for metal or acrylic, and your ear size. Both are basically flawless in terms of fit and finish and the Andromeda has that iconic design, oft copied but never replicated. For me the Andromeda is the better fitting earphone thanks to a more compact design and shallow fit. The angular edges lead to no discomfort. The FA9 isn’t far off though, and with its superior isolation and stability during movement might be better for you. The FA9’s cable is thicker and more durable and looks much more impressive, but I’m one of those weirdos that like thin, light cables which the Andromeda has. The FA9’s cable is the better of the two though, hands down.

It should be no surprise to hear that I prefer the Andromeda, but the FA9 serves to highlight the law of diminishing returns and how good products in the 500 USD price range really are. You get near TOTL performance at half the price, and in the case of this comparison with more features and flexibility thanks to that handy tuning system.


In The Ear The FA9 takes on what has become a very familiar silhouette within the last few years with its custom-like shape. This is a good thing because such designs have been crafted from the average of thousands of ears and as a result provides as close to a universal a fit as it gets, at least for a large, low profile earphone. The FA9 is a fairly hefty earphone, understandable given what has been crammed inside each 3D printed shell; 6 Knowles armatures, 4-way crossover, tuning switches, 80.6mm long sound tube (plus two shorter tubes), and the MMCX hardware. Even being as large as it is, the FA9 fits wonderfully. It fills the outer ear ensuring an even weight distribution and therefore a stable and secure fit. Since it fills so much of the ear and is a sealed design, passive isolation is outstanding. Note that there is a small vent on top of the FA9 by the face plate where the earphone tapers in. I suspect it is an artifact of the printing process because the vent seems to arch into the back of the face plate and end there. Since the rest of the shell is solid acrylic, I don’t see how it can be used to ease pressure, hence saying the design is sealed.

As I’m writing, a lawnmower is going full bore outside my apartment window and I can barely hear it, with no music playing, preinstalled medium Spinfits in place. Trade those out for some foam tips and the FA9 becomes one of the most highly isolating earphones I’ve used to date. The only trade off is pressure build up upon initial insertion thanks to that sealed design. This is a pretty common observation with fully-sealed, armature-only earphones and can be mitigated a few different way; foam tips, putting the FA9 in slowly, and/or pulling on the top of your ear with your mouth open while inserting. Sure you look ridiculous for a few seconds, but it eases the pressure so you can listen comfortably.

When it comes to build quality, the FA9 is top tier. Their budget minded FA1 is one of the cleanest looking 3D-printed earphones I’ve seen. The FA9 builds on this foundation resulting in an even more impressive product. The acrylic is completely transparent allowing you to clearly see all of the innards, where the FA1 was semi-transparent with a cloudiness to it. The layout of the drivers, crossover, switches, and various tubing is extremely neat and tiny with zero sloppiness or misaligned units. The switches are positively tiny though, hence why FiiO suggests using the prong on the included cleaning brush to move them. The nozzle is well formed with a small lip, though it’s not quite prominent enough to hold on tips of every style. All the included tips stay in place though, and since you get so many of them, and of varying designs and styles, I don’t see any reason beyond curiosity to dip into third party options. The MMCX ports on the FA9 are very firm, though not so much so you feel like you’re going to break something when attaching and detaching the cable. This firmness is welcome because it keeps the cable oriented in the position you set it. The earpieces cannot freely swivel around on their own which can be very annoying and wears out the connectors faster than normal. Overall fit and finish is basically flawless. Not complaints about how this earphone is constructed.

That goes for the 8 strand monocrystalline silver-plated copper cable too, which is every bit as premium as the rest of the presentation. The silver shines through the clear sheath giving off visual appeal in line with the price tag. In addition to looking great, the sheath is soft and flexible with effective tangle and noise resistance. The chosen hardware is of good quality too. The MMCX plugs are smoothly angled with red and blue metal rings at the base ensuring right and left channels are clearly marked. The preformed ear guides that lead out of them are smooth and flexible, much nicer than the stiff plastic tubes used for the FA1’s otherwise excellent cable. Travelling down towards the y-split we find a metal chin cinch. The cinch is just tight enough around the cable to remain in place when used, but not so tight as to make moving it a challenge. Some are so tight they pull uncomfortably at the cable which is not an issue here. The y-split is a simple aluminum ring with FiiO laser-etched on it. It acts purely as a place where the 8 strands divide and lead up to each ear piece. The 90 degree angled jack is another solid piece of aluminum with pronounced knurling and a hefty protective strain relief. While the jack is definitely thicker than average, the 3.5mm output is extended so you shouldn’t have to worry about your phone or DAP case getting in the way.

Overall a gorgeous looking earphone with outstanding build quality both inside and out.


In The Box The FA9 arrives in premium packaging befitting it’s stature in FiiO’s lineup. At first glance it looks like nothing more than a large black box. There is a very cool aspect to it though, which is the rainbow colouring that appears when light hits at an angle. The face of this otherwise large, unassuming package is adorned with nothing more than the FiiO logo in silver foil dead centre with a Hi-Res Audio logo present in the top right corner. On the left is a lone authenticity sticker. The back contains visual representations of the the FA9’s switch-based tuning system and how each switch affects the sound output, along with logos for Knowles, HeyGears, and Spinfit. The entirety of the right side is an opening to slide out another textured black box contained within, this one adorned with only a glossy black FiiO logo centred on the lid. It’s all very reminiscent of a high quality book tucked into a decorative sheath.

Upon removing the lid from this inner box you find the FA9 with cable attached, neatly stored in a thick foam insert. Lifting out the insert reveals the rest of the accessories. In all you get:
  • FA9 earphones
  • 8 strand monocrystalline silver-plated copper MMCX cable
  • Spintfit tips (s/m/l)
  • Vocal tips (s/m/l)
  • Balanced tips (s/m/l)
  • Bass tips (s/m/l)
  • Bi-flange tips (m)
  • Foam tips (m x 2)
  • Faux leather, hard shell carrying case
  • Soft shell cloth carrying case
  • Magnetic cable tie
  • Cleaning multi-tool
Overall a pretty darn impressive and extensive accessory kit. You get a ton of tips with no redundancies so surely you can find something that fits well without needing to dip into third party options. If they all fit you can use them in conjunction with the switch system to further tailor the sound to your preferences. I also love how they are neatly stored and displayed in their own, fully labelled foam insert. You don’t have to mess with any tiny plastic bags and risk dropping a tip, or hunting for two of the same size. This insert may seem like a relatively insignificant deal but as someone that has tested hundreds of earphones, it greatly improves the user experience and I would love to see this become the standard. Lastly, the inclusion of two different storage cases is appreciated. You can use the large hard case while at home, and take the smaller soft case with you on your travels.


Final Thoughts The FA9 has shown itself to be a well-rounded and versatile earphone thanks to it’s strong low end performance, natural midrange, and refined treble. It is all controlled by a tuning system that, while subtle, makes enough of a difference to frequency emphasis to enable users to tailor the sound to their preferences. Imaging just off-centre could be better, but this is all that mars what is otherwise a very refined and capable auditory experience.

Build on that solid foundation with an attractive, well-built design, a quality cable, and an extensive accessory kit that is packed with various tips and useful extras like two different carrying cases, a cleaning tool, and a handy magnetic cable tie, and the FA9 is a package that should ensure you don’t need to spend extra “upgrading” or compensating for cheap add-ins out of the box. About the only thing FiiO could have improved upon is that nice cable, instead providing one that takes advantage of their new modular plug system.

Overall the FA9 is a very strong mid-range offering. While it doesn’t quite hit the same high marks as your typical kilo-buck flagship, it gets very close at half the price. That is something FiiO should be very proud of, and potential customers should be happy to hear. This one is absolutely worth adding to your auditioning list if hunting for a new product in this price range.

Thanks for reading!

– B9

Disclaimer Thanks to Sunny with FiiO for reaching out to see if I would be interested in reviewing the FA9, and for sending over a sample for the purposes of review. The thoughts within this review are my own subjective opinions based on almost a month of testing. They do not represent FiiO or any other entity. At the time of writing the FA9 retailed for 499.99 USD: /

  • Impedance: 16~32 Ohms @ 1KHz
  • Sensitivity: 110~113dB @ 1mW
  • Frequency Response: 15Hz~40kHz
  • Maximum Input Power: 100mW
  • Drivers: SWFK-31736 (highs) EJ-33877 (mids), HODVTEC-31618 (lows)
Gear Used For Testing LG Q70, FiiO M3 Pro, Earstudio HUD100, Earmen TR-Amp, Asus FX53V, TEAC HA-501

Some Test Tunes

Supertramp – Crime of the Century
Slipknot – Vol 3 (The Subliminal Verses)
Daft Punk – Random Access Memories
Aesop Rock – The Impossible Kid
King Crimson – Lark’s Tongues in Aspic
King Crimson – Starless and Bible Black
Infected Mushroom – Legend of the Black Shawarma
The Prodigy – The Day is My Enemy
Steely Dan – The Royal Scam
Porcupine Tree – Stupid Dreams
Fleetwood Mac – Rumors
Tobacco – F****d Up Friends


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Not sure if you’ve heard Blessing 2, but I’d love some sound comparisons between FA9 and B2!
@WongGang Thanks! Glad you're enjoying yours :)

@LuckyGhoul I wish. Really enjoy Moondrop's gear but I've only heard the Starfield and Spaceship so far.
DJ Core
DJ Core
Some say the new FH3 smokes this one