Tansio Mirai X


Headphoneus Supremus
TSMR X: Big bass, big tech performer.
Pros: Superbly visceral bass, large soundstage & impressive technical performance
Cons: Short nozzles, slightly v-shaped & treble may be an issue for some
Why is it guilty pleasures become even more fun when we share them?

If you've been reading my reviews awhile you'll know I've discussed bass as one of those things many audiophiles love to pretend they only enjoy in moderate doses... yet secretly can't get enough of.

This goes back to the old days when earphones were often either bassy & fun, or lean & technical. So if you wanted big bass you had to give up niceties like resolution, imaging & soundstage for it.

Times've changed, now we're so spoiled we expect monstrous bass and superb technical performance.

Which is exactly what the TSMR X IEMs I was sent in exchange for my opinion supposedly deliver - massive gobs of thunderous bass, without compromising anything else.

So do they? If you're as guilty for bass as I am then get cozy while I share what I've learned...



The USD $399 TSMR X are delivered in a flash looking box with 10th Anniversary embossed in gold lettering, and inside is a similarly stylish leather case that's rather small but feels quite nice.

There's also two sets of silicone eartips in three sizes, an IEM cleaning tool, a leather cable holder along with two small metal tools you can use to flip X's set of tuning switches.

The 2 wire stock cable is very attention grabbing, and is terminated in your choice of 4.4, 3.5 or 2.5mm plug. It doesn’t tangle easily but isn’t as supple as thinner 4 wire stock cables, but is unobtrusive to use.



The Xs 3D-printed resin shells are on the larger side and stick out a fair bit. Not only are they vented, but also come with removable modules reminiscent of the 64Audio & FiR Audio venting systems. Sadly replacement modules offering differing isolation levels aren't available, or haven't been released yet.

I find the X shells very ergonomic & comfortable, and their size helps block an above-average amount of background noise. The nozzles are quite short, which may be an issue if you have smaller ears.

The Xs also come with three tuning switches per side, which I'll discuss later.

Sound Impressions


I used a Luxury & Precision P6 Pro set to hi-gain mode at 8/60 volume to evaluate the Xs, as I listen at lower volumes. This is the Tidal playlist of tracks I use to evaluate IEMs.

The Xs boast 2x 8mm DDs for bass, 2x Knowles BAs for midrange and 2x Sonion BAs for treble and a "custom film retarding driver" for 'full frequency effect'. The Xs are very bass dominant and slightly v-shaped with impressive technical performance & three switches to tune bass to your taste.


Impressive as the Xs' other areas are, bass is no doubt their standout attribute. Even with the switches in default positions, bass reverberates spectacularly with overwhelming quantity & superb texture.

Those twin-DDs really pound out bass notes with aplomb, and better yet sub bass is emphasised over midbass which is definitely my preference. Sure the midrange is overshadowed to some degree, but with bass-heavy genres like EDM you'll probably enjoy the bass way too much to care.

Bass texture is really meaty with tons of rumble, which is an area IEMs using single-DDs for bass have often satisfied me more than those with double-DDs, but the Xs are a notable exception!



I've been pleasantly surprised by the Xs' midrange. Despite this being their weakest area in terms of both quantity & quality of reproduction, Xs vocals are delivered with satisfying articulation & presence.

They're set back slightly to help generate the feeling of a larger stage, but are definitely not recessed. Nor do they particularly suffer from poor tonality like those of many IEMs using BAs in this area, though I wouldn't quote tonality as a strength either.

What helps is the balance between the lower & upper midrange is delicately poised, lacking the thickness of an IEM like the Quattros, yet avoiding the whispy upper-midrange focus of Harman-tuned IEMs.


I labeled the Xs as v-shaped earlier which is how I hear them, but despite being quite prominent treble is rarely excessive. Cymbals and the like come through distinctly, without being overly distracting.

As to the treble quality, it feels a small step down from expensive IEMs with EST drivers but about as good as you can expect under $500 from IEMs lacking huge numbers of BA drivers. I don't mind living with little more treble than I'd prefer if the quality is agreeable, which is the case here.

Do bear in mind a lot of the extra treble seems to originate from the stock cable, so swapping it out for a copper alternative can dull this area if you're very treble sensitive.

Technical Performance


The Xs are exceptional technical performers under $500 - particularly impressive given their enormous bass quantity, and that tonality hasn't been sacrificed to achieve it.

To begin with they're very dynamic, not the most dynamic IEM I've heard at this price (that'd be the Neo5s) but not far off either. Resolution is very good, particularly on tracks where that massive bass isn't clouding the midrange. Sadly that also prevents imaging being top notch, but it's quite solid.

They're also very cohesive by hybrid standards, though the bass sometimes feels like it's lagging a little purely because there's so much of it - forgivable when bass texture is so satisfying I think.

Oh, and the soundstage. By the standards of IEMs under $500 it's massive, especially width which is seriously impressive but even depth is very good. Overall I'm very pleased with the Xs' technical chops.

Tuning Switches


The Xs feature three switches per side, which essentially allow you to control bass output.

Going from left to right, each switch triggers a higher level of bass quantity and flipping ON more than two at once simply triggers whichever setting is highest. So you'd flip Switch 1 to ON for max bass, or turn them all OFF for the most anaemic sound possible.

Switches in the stock position (shown above) activates the second-highest level of bass output which is very bassy, already overshadowing the midrange. Going to the max bass setting things get pretty crazy, enough bass to give me a headache - which admittedly will excite some of my basshead friends.

With all settings OFF nearly all bass is gone, which may work for classical music for maximum clarity.

IEM Comparisons


I compared the Xs to other IEMs using a Luxury & Precision P6 Pro set to hi-gain at 8/60 volume.

TSMR Feat – 2xDD 2xBA (USD $239)


The Feats are a bit less aggressive than the Xs being slightly less v-shaped, with a thinner midrange containing less lower midrange warmth. X are slightly brighter & more resolving with higher quality treble, and bass is also deeper & more impactful.

Bass on the Feats emphasises midbass more and can feel pillowy at times, but they do sound smoother and I prefer their tonality over the Xs.

However the Xs are better technical performers with superior dynamics, a slightly deeper stage, and better instrument separation.

ISN Neo5 – 4xBA 1xDD (USD $289)


The Neo5s use a single DD for bass which is more sluggish than the 2DDs of the Xs. The Neo5s can't keep up with fast music quite as well, but their bass decay is a bit slower & more satisfying.

The Neo5s have marginally higher bass quantity (both reaching basshead levels) but it isn't as integrated as seamlessly into the rest of the presentation, perhaps due to coherency with the slower DD.

However the Neo5s emphasise the lower midrange more and I find their tonality & midrange in general more satisfying. They're also brighter but can be more fatiguing as a result, where X are a little smoother.

Do bear in mind both IEMs are fairly v-shaped and actually sound quite similar, but I find the Neo5s more dynamic, raw and engaging, but less coherent. The Xs have a deeper stage with a blacker background & sharper imaging and feel a bit more polished overall, and slightly more resolving.

Penon Quattro – 4xDD (USD $399)


The Quattros are quite different from the Xs, much darker with a more natural tonality that's considerably warmer & earthier. They sound slower with superior note weight, and are less fatiguing.

By contrast the Xs have a more 'hi-fi' sound with higher quality treble that's more prevalent, greater resolution and a more precise sound with a deeper stage, and Xs bass goes deeper with better texture.

The Quattros' strength is their phenomenal tonality, exposing how unnatural BA drivers can sound by comparison. I would value that ahead of the Xs superior technical performance with genres that use a lot of natural instruments, for others like EDM or fast pop music the Xs probably come out ahead for me.

ISN EST50 – 2xBA 1xDD 2xEST (USD $449)


Like the Neo5s, the EST50s are another v-shaped IEM with elevated levels of bass. Unfortunately their single-DD is even slower than the one in the Neo5s, which results in coherency issues.

As a result the EST50s can feel congested keeping up with fast music, and even their bass texture is mushier so they can feel sloppier by comparison.

The EST50s have a more forward midrange, and thanks to those EST drivers their treble does feel a bit smoother & more refined.

Whereas the Xs are slightly bassier and a little more v-shaped, but also more precise with a far deeper stage and better dynamics & instrument separation.

Cable Comparisons


I tested the Xs with a number of aftermarket cables to gauge how effectively they scale.

NiceHCK DragonScale (USD $157)


This pairing is a mixed bag. On the one hand bass is slightly deeper and imaging feels a little bit cleaner, but although the stage seems a little deeper it's also slightly narrower and dynamics are poorer.

The stock cable's brightness is reduced, but I don't care for the tonality of this pairing as it feels muffled.

Effect Audio Ares S 4 Wire (USD $179)


Ares S makes midbass feel a little more prominent, the stage deepens slightly, and imaging is a sharper.

The tonality is bit smoother & warmer with some of the brightness of the stock cable removed. It's a satisfying pairing without being amazing.

Penon Renata (USD $269)


Renata produces a much deeper three-dimensional stage, with sharper imaging, a blacker background & slightly higher resolution.

Tonality is less bright than the stock cable, I mostly notice Renata resolving details more effortlessly in this impressive pairing.

12 Wire Penon ASOS Prototype (TBD)


Penon were kind enough to send me this huge, 71 gram hand-braided prototype 12W version of the 8W ASOS+ cable I reviewed, and I believe are considering selling a commercial version in future.

This cable performs on a completely different level. Bass goes much deeper, the stage is massively wider & deeper, dynamics are much improved, resolution is appreciably higher and the background is blacker.

Even treble is smoother than the stock cable despite more detail coming through. It makes the Xs sound similar to TOTL IEMs, with perhaps the most impressive bass, staging & resolution improvements of any cable I've heard under $1000.

The cable is very heavy, but quite flexible and I find it practical to use. I really hope Penon sell them.



The TSMR Xs are a basshead's delight that are equally impressive on the technical front.

Years ago you had to spend thousands for really bassy IEMs deft enough to handle a multitude of genres, so at $399 I can't help but marvel how far the hobby's come - it's getting harder to justify spending more.

Nitpicks? They're a bit v-shaped so treble may be an issue at higher volumes, which the stock cable won't help as I find it fairly bright. The tuning switches I could live without too as stock bass levels are the most satisfying for me, and it's a shame there's no swappable modules for those isolation ports.

Oh, and the resin shell nozzles are fairly short which could be an issue if you have smallish ears.

Overall though, it's tough to complain when you're getting genuinely impressive technical performance along with a mountain of bass for under $500. EDM fans will be right at home with these.

The great thing about earphones like this is how much unnecessary basshead guilt they alleviate, since we no longer have to compromise on anything else for bass we can feel.
Good review; I especially enjoyed the IEM and cable comparisions as I own the TSMR X (and love it)

Thank you !
Love that ASOS Prototype! It's pretty!
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Yeah the 12W cable is an absolute beast yet it's surprisingly manageable. I'm really hoping Penon start selling them, and I'd love to see an all-copper version too. 12 wire dynamics, staging & resolution are something I want more people the hobby to experience. I have noticed the more technical the source and/or amp combination it's used with the more effect it seems to have - almost as if the base level of those attributes are being multiplied so the more prevalent they are to begin with the more potential benefit there is. The same goes for the IEM it's used with of course, more natively technical IEMs are going to be improved proportionally more.


New Head-Fier
Tansio Mirai X - Bassy hybrid IEM that could be better
Pros: - Switch tuning iem which is not gimmick
- All around type of iem
- Musical and fun sounding iem
- Good technical capabilities with a holographic stage
- Easy to drive iem
- Coherent and quite natural sounding iem
- Authoritive and quality bass at the same time
- Smooth and inoffensive mid and treble
Cons: - The layering and separation could be better
- The vocal presentation could have more dynamic, more sweet or syroupy sense
- The treble is still slightly plasticky and lacking a bit extension. But it's only a nitpicked cons imo
I got this IEM on loan from the Indonesian tour which was sent from the BTM Store.

When the iem arrived to me it was in incomplete packaging, because I was only sent the case and the iem without any tips. The cable used in the iem is a Jack 4.4 cable with good and thick material.
The housing material is considered solid with materials that feel premium. It feels expensive when you hold it.

As for the fitting itself, I think it's quite comfortable, although I have to adjust it first before fitting it to my ear.
Because when it was sent to me there were no tips, so I used Divinus Velvet tips.

This IEM is relatively light to use using a weak source. This IEM is a multi driver hybrid IEM with a 2dd+4ba+1 custom film configuration.
With this 7 driver configuration, we also add the option of 3 switches which makes it easy for us to change the sound. Switches that we can set for example:
100: The bass is boomy and tends to have a warm vshape sound character. Enter for bassheads
010: Tends to balance with a mild vs warm sound direction
001: Tends to be a bit warm with a focus on the treble. Even though the focus is on treble, it's still not enough for trebleheads

This combination of switches can be further tweaked, for example like switch 011 which makes the sound bassy but also ringy. In this review I used a balanced 010 switch.

What's a more complete impression of the sound? Check it out...

This IEM has a mild, warm sound direction with a focus on really deep sub bass. The bass quantity feels a bit big. The quality that is highlighted in this IEM is in the sub bass which has rumbling vibrations and a steady texture from the combination of the custom film and DD drivers. These subwoofer flavors make a magnificent impression in the sound presentation.

The mid bass isn't as big as the sub bass, but it still has good quality and texture. Yes, although for people who are fans of mid bass, it definitely feels like the bass lacks impact. It feels like it's holding up with the big sub bass.

The sub bass decay feels long, but the control is still quite good at fast speeds. Even though it's a bit bleak on other instruments, fortunately it only feels like this in songs that have a rich combination of sub bass and bass, like the Abyss-Yungblud song. If it's for pop, rock and top 40 songs, it's still safe.
Overall, the bass presentation helps make this Mirai X feel fun and musical.

The mid position feels behind the bass. The weight is thick with equal male and female vocal positions. The uppermid is slightly boosted to make the vocals seem clearer and looser. So the vocal presentation can be clear and sweet with a smooth sensation.
Sibilance and peaks feel minimal here.

But unfortunately the vocals feel a bit less swinging, so it feels like it lacks emotion and fun. But I can understand this because this IEM really focuses more on bass quality.
As for the timbre in the mid, because it uses a good BA driver, it feels natural and not too plasticky. When I listen to acoustic guitar, piano, etc., it feels like the weight and timbre are right.
Even my Juzear 41t feels a bit plasticky after listening to Mirai x, because the BA presentation is so natural.

The treble of the Mirai X tends to be laid back, smooth and relaxed in presentation. The cymbal ring feels a bit thin in weight, with pretty good extension even though the ends roll off a bit.
The aggressive impression of the cymbal hits is a bit lacking for trebleheads, but for other people it feels right. Peaks and grainy are also safe in this treble with a quite natural timbre from the good BA driver. The plasticky impression in the treble is only felt in songs where the treble is dominant and aggressive.

One of the things that Mirai X stands for is its good technical skills. The stage is quite wide even though it is not a wide stage.
The stage presentation relies more on balance. So it feels like the width, depth and height of the stage are the same.
Make precision instrument imaging and get a 3D impression

The detail, resolution and micro details are really great. In my opinion, it is at the same level as Blessing 3 and slightly above S15, MP145, Wind, and P1 Max 2. The clarity is also quite clear. So it makes the musicality of Mirai X even better.

The transient speed is fast even though the bass is a bit big. It's still suitable for metal songs that are a bit heavy, although it will feel lacking in rock songs that rely on sub bass, because the sub bass is a bit long.

Actually the sound layering is good, but unfortunately the separation is a bit lacking in my opinion in songs that are busy with loud sub bass and mid bass booms like the song Abyss - Yungblud. But in songs that don't have dominant bass that responds, the separation is good.

I can say that the Tansio Mirai
The price is affordable (around 400), it can be used as an option for straight end games for fans of warm IEMs that can go all around, or for non basshead maniac

The flexibility in the switch function which is not a gimmick is also interesting to try. There is no ivory that doesn't crack, and so does Tansio Mirai x.
The vocals are a bit less swinging and the separation is less separable in bass-dominant songs, which can also be taken into consideration for those who want to buy this IEM.


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New Head-Fier
Tansio Mirai X : Blissful and Perfection
Pros: +Balanced tuning
+Versatile tuning switches
+Realistic timbre
+Full, deep, visceral bass (Reference
+Smooth and transparent mids
+Excellent airy and treble response non fatiguing (Reference grade)
+Impeccable technicalities
+High quality cable
+Excellent build
Cons: -Source picky
-Modular cable can be a treat (subjective)


This TSMR - X immersed me to sonic bliss for almost 2 weeks now. This is the first time I audition a 400$+ IEM it is different from the budget-fi experience I can simply say this TSMR - X is one that I want to keep as reference IEM. One thing is to take note is the tuning switches which customized the IEM in 3 different personalities.


I would like to thank bhai Sandeep Agarwal for loaning this incredible gear for me. My opinions are unbiased, and I haven't been influenced or instructed to praise these IEMs. Every detail in this review is actual experience made by listening for hours everyday.



Driver: 2 x dynamic + 4 x balanced armature + 1 x custom film retarding driver

Material: 3D printing high quality resin shells.

Frequency response: 5-30kHz

Impedance: 10Ω

Sensitivity: 103dB

Connector:2pin 0.78mm

Cable: SPC OCC Cable 4.4mm Balanced

Cable Length:1.2m


Build and Comfort

The build is sturdy made in crystal green resin it gives a more premium feel. Its unique design in the faceplate makes me always amazed whenever I see it. It is also comfortable enough without discomfort in long listening session.


Sound Aspects

Source used :

Realme 9 Pro

Kiwiears Allegro

Ibasso DC04 Pro

This iems spend 7 days with me before taking details of this review

The TSMR X is a Balanced set in my taste. With Deep, full, visceral, well textured bass (Reference grade), nicely smooth and tranparent midrange, great treble response without the sign of fatiguing. I'm really enjoying this set.

To take note

I haven't touch the tuning switches. The tuning 020 is enough for me to evaluate this gear.



PENON Lacquer Orange

This is my favorite tips as of now. It adds bass and warmth to my gears without compromising the clarity.

PENON Lacquer Black

It adds treble energy ,clearer vocals and great resolution without reducing the bass quality.


The bass is the specialty of TSMR X. It shows clean, full and realistic bass response with enough impact. It's satisfying rumbles makes me wanting more when I'm listening to some EDM music it got my taste in every impact it leaves a trail in the presentation. I never heard an IEM as good as this. This is definitely a reference grade.


The mids is smooth, airy and transparent, the male vocals sounded a little lacking in texture. I prefer female vocals here it does sound fuller and richer compared to male vocals. The midrange instruments are lush , clear and detailed the strums of guitar is tastefully done. The realistic timbre of instruments here is addicting imo.


It is exceptionally refined In a sense it has enough sparkle, air and extension without sounding harsh or sibilant. One more thing impressed me is the treble good note weight it provides enough energy and shimmer to the presentation to become engaging enough to enjoy the music.


The soundstage, layering and separation I can't flaws here tbh. It is exceptionally good to portrait the music. Soundstage is wide and spacious. Layering and separation is good you can easily pinpoint where the instruments is placed in the stage without feel congested itt makes a clear picture of the presentation.



This TSMR X gives me chills everytime I play my entire music library it is definitely an all rounder. Its realistic timbre across the presentation is one thing to take note it gives you pure bliss you didn't noticed the time 5 hrs had passed because how good it is. If I have the chance to purchase one I will do it without hesitation. This is a Must Buy.
David Haworth
Well summed up. I agree


New Head-Fier
𝑻𝒂𝒏𝒔𝒊𝒐 𝑴𝒊𝒓𝒂𝒊 10𝒕𝒉 𝑨𝒏𝒏𝒊𝒗𝒆𝒓𝒔𝒂𝒓𝒚 𝑬𝒅𝒊𝒕𝒊𝒐𝒏: 𝑿 𝒎𝒂𝒓𝒌𝒔 𝒕𝒉𝒆 𝒔𝒑𝒐𝒕
Pros: Amazing build quality
Eye-candy IEM shells
Innovative removable drivers
Tuning switches that actually change the sound drastically
Great quality accessories
Amazing bass performance
Lush and warm sounding mids
No sibilance
Relaxed highs
Competent technicalities
Cons: Treble fanatics will want more treble energy
The included case could have been a bit bigger
𝑻𝒂𝒏𝒔𝒊𝒐 𝑴𝒊𝒓𝒂𝒊 10𝒕𝒉 𝑨𝒏𝒏𝒊𝒗𝒆𝒓𝒔𝒂𝒓𝒚 𝑬𝒅𝒊𝒕𝒊𝒐𝒏: 𝑿 𝒎𝒂𝒓𝒌𝒔 𝒕𝒉𝒆 𝒔𝒑𝒐𝒕

|| 𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 ||

Tansio Mirai is one of the more boutique brands that had been in operation for quite a while now but was typically not in the mainstream spotlight. They offer a wide range of items from cables and IEMs from $39 all the way up to $2999. I will be referring to the 10th Anniversary edition as ‘ TSMR X ‘ for convenience sake.


They are now celebrating their 10th anniversary with a limited edition 10th anniversary set for the price of $399, making it settle in the midrange category of the hobby. Tansio Mirai packed the TSMR X 2DD + 4BA + 1 Custom Film Retarding Driver.

Their custom driver is removable and seems to be adjustable, which I find unique for an IEM in itself. Not only that, they opted to have the TSMR X made with tuning switches to future tweak the sound for one’s liking.

|| 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 Tansio Mirai 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 𝗔𝘂𝗱𝗶𝗼 𝗚𝗲𝗲𝗸, 𝗕𝗿𝗼𝘁𝗵𝗲𝗿𝗵𝗼𝗼𝗱 𝗼𝗳 𝗔𝘂𝗱𝗶𝗼𝗽𝗵𝗶𝗹𝗲𝘀 𝗴𝗿𝗼𝘂𝗽 𝗲𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗹𝘆 𝘁𝗼 𝗠𝗿. 𝗦𝗮𝗻𝗱𝗲𝗲𝗽 𝗔𝗴𝗮𝗿𝘄𝗮𝗹 𝗳𝗼𝗿 𝗽𝗿𝗼𝘃𝗶𝗱𝗶𝗻𝗴 𝘁𝗵𝗶𝘀 𝗼𝗽𝗽𝘂𝗿𝘁𝘂𝗻𝗶𝘁𝘆. 𝗜 𝘁𝗿𝘂𝗹𝘆 𝗮𝗽𝗽𝗿𝗲𝗰𝗶𝗮𝘁𝗲 𝘁𝗵𝗲𝗶𝗿 𝗴𝗲𝗻𝗲𝗿𝗼𝘀𝗶𝘁𝘆 𝗮𝗻𝗱 𝘁𝗿𝘂𝘀𝘁 𝘁𝗼𝘄𝗮𝗿𝗱𝘀 𝗺𝗲 𝗮𝗻𝗱 𝗼𝘁𝗵𝗲𝗿 𝗿𝗲𝘃𝗶𝗲𝘄𝗲𝗿𝘀.

| 𝗣𝗮𝗰𝗸𝗮𝗴𝗶𝗻𝗴, 𝗨𝗻𝗯𝗼𝘅𝗶𝗻𝗴 & 𝗔𝗰𝗰𝗲𝘀𝘀𝗼𝗿𝗶𝗲𝘀 |

It comes in a small hard box with a unique coloring. It has your typical text and branding on the front and manufacturer’s details on the back. It has a straightforward unboxing experience, sliding off the initial cover and removing the top cardboard lid will reveal the IEMs themselves encased in dense foam. In the same layer is the provided case and underneath where the IEMs sit is the stock ear tips.



𝗜𝘁𝗲𝗺 𝗕𝗿𝗲𝗮𝗸𝗱𝗼𝘄𝗻:
TSMR X drivers
2-core 2-pin SPC OCC cable(4.4mm BAL)
3-pairs of white translucent eartips(S/M/L)
3-pairs of black translucent eartips(S/M/L)
Off-white faux-leather zipper hard case
Cleaning brush tool
Tuning switch pick tool
Custom driver pick tool

The set of inclusions is good. It is nice to see they included a brush for cleaning the IEMs along with the appropriate tools for tweaking the driver and the switches. The included eartips are your normal stock tips, and I can’t say much about them as they are not that exciting.


The quality of the cable is also amazing, it may not be as braided as others but I actually prefer sleeker cables like this. It doesn’t weigh you down, not stiff and not thick. The gold finish on the fittings also adds a little bit of pop onto the cable. One problem though is the lack of left and right indicators to be able to easily have the correct polarity.


The included case feels nice and high-quality. The look of it definitely gave it a “boutique” feeling but I wish the size would be a tad bit bigger to be able to hold IEMs without much cramming.


Overall, the inclusions are more than enough to get you started. Tansio Mirai definitely prioritizes the accessories that matter to the actual use of the IEMs.

| 𝗕𝘂𝗶𝗹𝗱 & 𝗗𝗿𝗶𝘃𝗲𝗿 𝗖𝗼𝗻𝗳𝗶𝗴𝘂𝗿𝗮𝘁𝗶𝗼𝗻 |

The TSMR X’s body is made entirely out of a translucent green resin which feels really premium. It has heft to make it feel substantial and is nice in the hand. They only offer this in this colorway but the design is really nice. It is subtle with a nice splash of green.


The faceplate has this wavy smooth texture along with the circular driver that you can remove or adjust. The custom driver also acts like a nice design accent for the quite mundane faceplate.


Overall, the design of the TSMR X is minimal yet unique. I'm really fond of this colorway and am amazed with the build quality.

Form-wise, the TSMR has a universal fit, it doesn’t have any deep grooves or protrusions that can annoy others but benefit some. The 2-pin slot is located on the top and the array of switches along with a vent is located on the rear. The nozzle is quite stubby(wide and short) and has no lip to aid in keeping the ear tip in place. This made me require the use of longer eartips during my testing.


Tansio Mirai packed this set with a 2DD + 4BA + 1 Custom Film Retarding Driver, to cover the frequency range. The custom drivers in this one have a neat ability to be removed or adjusted, I noticed that this driver can adjust the ventilation and bass response of the TSMR X.


Another way to change the sound is with the tuning switches. In other IEMs, such switches barely have noticeable change with the sound, the TSMR X switches though, make a world of difference in the sound.

| 𝗜𝘀𝗼𝗹𝗮𝘁𝗶𝗼𝗻 |

Isolation on the TSMR X is the middle of the pact. It doesn’t leak outside sound in but at the same time doesn’t isolate them out entirely. I’m not quite sure if the custom driver affects this but isolation of the TSMR X is more than usable.

| 𝗖𝗼𝗺𝗳𝗼𝗿𝘁 |

With the right eartips, the TSMR X provides amazing comfort in the ears. I never once found myself removing them due to ear fatigue or had to readjust them due to discomfort. The fit is nice and snug with my ear and is kept in place even after some drastic head movement. The occlusion effect isn’t an issue either.

** 𝟳𝗛𝗭 𝗛𝗘𝟬𝟴 𝗦&𝗦 𝗲𝗮𝗿𝘁𝗶𝗽𝘀(𝗦𝗺𝗮𝗹𝗹) | 𝗞𝗶𝘄𝗶𝗘𝗮𝗿𝘀 𝗔𝗹𝗹𝗲𝗴𝗿𝗼(𝟰.𝟰𝗺𝗺 𝗕𝗔𝗟) **

| 𝗗𝗿𝗶𝘃𝗮𝗯𝗶𝗹𝗶𝘁𝘆 |

Even with the wide assortment and quantity of drivers, I never had an issue with the TSMR X requiring more power. There was no issue for me getting my desire volume without much push with the gain.

|| 𝗦𝗼𝘂𝗻𝗱 ||

Overall sound is pleasant and amazing. They offer a great performance all across the board be it from the lows all the way to the highs. The TSMR X offers a familiar yet unique sound that has something to offer for everyone.


| 𝗕𝗮𝘀𝘀 |

One of the key highlights of the TSMR X. These offer amazing bass for both midbass and subbass. Kicks and hits sound full, fast and have quick decay, as if you are hit but something with mass. Subbass goes in deep and is really rumbly. Texture of the rumble is really good whilst keeping it clean.


Definitely one of the best IEMs in terms of bass. Nothing I’ve ever tried sounded this full and satisfying whilst not sounding overbearing or smeary. This can easily impress even bass heads with the nice balance of quality and quantity.

| 𝗠𝗶𝗱𝘀 |

The streak continues as the TSMR X also has good mids. Vocals sound full, warm and have enough air. It never sounded as if the vocals were choked or pre-emptively cut-off. I never encountered any instance of sibilance either. Feminine vocals do tend to be a little bit more forward that their masculine counterparts. Instruments have amazing note weight. They sound full and lush. You can really feel the heft of instruments being played. Air and extension is no slouch either on the TSMR X. Timbre sounds as natural as natural sounding can get.


There is no hint of weird unnatural sound during playback even with the diverse driver selection the TSMR X has,

Overall, a great sounding mids with no sibilance and natural sound. This may not still be enough for midrange fanatics but it is almost at the point of performance.

| 𝗛𝗶𝗴𝗵𝘀 |

Treble on the TSMR X is no slouch either. It has a very nice and unobtrusive sound, yet these provide a very detailed and refined treble performance. They have good clarity, detail, extension and a little bit of sparkle to top it off. It never sounded fatiguing or harsh.


In totality, good treble performance. It can provide ample amounts whilst still on the safer end in terms of energy. Extremist will probably yearn for more but I think the majority will find these appealing

| 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹𝗶𝘁𝗶𝗲𝘀 |

Despite the safer treble forwardness, the TSMR X still offers amazing technicalities. Layering, separation and staging are all exceptional. Never once the TSMR X sounded congested or all over the place even with the busiest parts of songs on my playlist. Immersion with the TSMR X is top-notch, I can whole-heartedly do this for both kinds of gaming along with being great for movies.

|| 𝗖𝗼𝗻𝗰𝗹𝘂𝘀𝗶𝗼𝗻𝘀 ||

This is definitely quite an experience for an IEM. The amount of little quirks it has all concluded in the overall sound performance that is exceptional. It ticks all the right boxes in my opinion and never once left me wanting for more.


I can recommend this for anyone that has the ability to do so. It has performed extremely well on all instances that I’ve tested it with so far. This is different from hyper-specific set like ones made and marketed for bass heads, treble heads, or anything similar but if you are looking at something that performs good in all instances, this is a definitely must worth a try even if it’s a loaner unit.


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David Haworth
Fantastic IEM. Well summed up


Headphoneus Supremus
Pros: -coherent warm W shape tuning
-incredible bass quality with plenty of quantity
-tactile, vibrant, dense and elastic bass response
-generous amount of grunt and rumble
-weighty slam which is round yet non fatiguing
-bassist specialist (you can even follow infra bass line)
-among best bass performance i've ever heard (near on par with Firaudio X6)
-lush, upfront and fully bodied male and female vocals
-energic yet smooth and creamy mid range
-tone fullness for every instrument and vocals you can think of
-holographic soundscape your part off
-organic balance with no spike or unwanted texture noise
-supremely versatile tonality
-switch that work and can add either bass rumble, warmth or treble bite and energy
-good technical performance even if non technical sounding IEM
-back passive radiator tech is a game changer
-excellent cable
-great sound value
Cons: -lack a bit of sparkle and air on top
-no end game in sharp clarity
-i wouldn't say no for cleaner bass separation
-not for bass shy listener
-back module is detachable yet we don't have more than 1 pair (missed opportunity i feel)
-short nozzle make the fit a bit capricious
434402154_315583641300817_1473724531294676430_n (1).jpg

TIMBRE: 8.8/10
IMAGING: 7.8/10
MUSICALITY (subjective): 9.5/10


TANSIO MIRAI (TSMR) is an IEM company from China that has neasr 10 years old of audio engineering experience but seriously begin to create their own IEMs in 2018.
I have review their TSMR Feat about a month ago and it was such an intense love affair that I make everything possible to test the X which seem logical upgrade of the Feat.


Because it use the same incredible dual coaxial DD than feat, but with more BAs, a back passive radiator module and 3 switch. All this for only 160$ more.

Priced 400$ (with an elusive MSRP of 700$), the X is an hybrid IEM using 2DD + 4BA + 1 Custom Film Retarding Driver Hybrid Audiophile IEM with Switches.

The tuning is explained like this:

''"X" as the 10th anniversary of the establishment of TSMR is a collection of years of technical accumulation, we continue to learn from experience, countless fine tuning, ten years of grinding a sword, through this work, complete self-breakthrough, and interpretation of our new understanding of sound.

The film slow pressure driver creates a more comfortable and relaxed listening feeling, which not only expands the sound field, but also makes the overall sound more natural and smooth, and the bass is more flexible.

Hollow coaxial structure dual dynamic driver, the rear driver through the hollow’s hole complete sounding, and produce a certain push-pull force on the front driver, not only to ensure sufficient energy, but also to provide a richer sense of layer, so that the quality and quantity of low frequency are greatly improved.

Using more efficient filtering technology, the background sound is cleaner, the mid-frequency vocal is clear and pleasant, the spatial stratification and positioning are clearer, and the high frequency is smooth and non-irritating.''

While i'm not sure how ''Limited'' is this TSMR X edition, it sure is one of a kind of an IEM that push sound technology to it's limit, at least bass wise due to all this sophisticated tuning care that use both driver and acoustic technology to boost both performance, quantity and presence of bass response.

Yes the expectation are sky high with the X, since the hype is real and invade my ChiFi Love group with praise.

But is it a legit hype?

Let see in this review what are my personal thoughs about this very promising hybrid earphone.




The construction design of the X is like no other IEMs have own or see and look very exotic and unique, the housing is all made of 3D printed thick resin plastic that feel extremely sturdy. It’s translucent blue so you can see all drivers inside the shell.Their a wave like texture on the back plate that creates beautiful light reflection.
Oddly, the TSMR X gold logo is on the front part of the housing in contact with the ears so not visible when you wear them.
At the side we have the tuning switch deeply embedded in the shell, which means you need a tool to change switch position: something I personally find both annoying and too common. I literally bring nails in my pocket when on the go to be able to use those switches. I guess the nicest solution would be to hook the included switch tool to your key ring.

The housing shape is organically ergonomic and naturally sits inside your ears but the nozzle is very very short, so these are thinked solely for shallow fit, you can’t push those deep.

yet the passive isolation is very good, this is due to the unique passive reflector module that block sound from entering the back of IEM since it's not open venting.


To note: you can pull off this module and in fact it seem designed to be swap. Oddly, TSMR hasn't exploit this incredible extra tuning opportunity that could modulate bass dynamic in different way a bit like the 64audio doe with it's (less sophisticated) apex back vent module. I've try the X without the film module but the result was bass weight less and apart for instrumental without drum the musicality wasn't natural. Conclusion: better letting the module in it's place and waiting for TSMR to offer proper extra modules if it ever happen.

All in all, while the aesthetic look will be hit or miss depending of subjective consumer taste, the construction of X is very impressive due to complexity of it's acoustic design. It seem very sturdy too. The translucent plastic permit a captivating look of all this complex audio engineering which is a plus.


The cable is excellent (as well as very same model included with the Feat). Its a thick 2 core cable that seem to be high purity silver plated. Their no official info about it but it feel very high end and would suprise me to find this kind of cable quality at less than 50$ since it's near on par with Simgot LC7. The construction look invincible, the core is soft and flexible, the 2pin connector are made of metal and the balanced 4.4mm jack is heavy duty, promising long durability.
In fact, this is among best cable ever included with an IEM i've encounter.


Then for the unboxing experience, it come in a small eco friendly box with no bling bling presentation, as I like.
Their 6 pairs of silicone eartips, which is a bit underwhelming, including short wide bore eartips would have been very welcome since it's what I use with both the X and Feat.
TSMR seem to love ultra small carrying case, i can understand practicality of such mini case but not with this very IEM due to big and thick cable, so yes I find it too small even if both the look and construction is excellent.
Other accessories is cleaning tool and tuning switch too. All in all, good accessories quality but i would like more eartips included.



Tonal balance can be described as warm and bassy W shape with the 3 switch that can boost sub bass, lower mids-high bass and mid treble up to 10khz. When 3 switches are down, it means NO BASS mode which is the only switch choice I suggest to fully bypass due to lack of dynamic and wonky distant musicality that doesn't feel natural.
These are the kind of IEM that can please both basshead and mid centric lovers but these will not be bright and analytical enough for treble heads nor neutral enough for purists.
Even if warm, I can see bassist and vocalist using those for on stage purposes because of how focused and well layered these are within an holographic and intimate spatiality.

Switch Flavor:

100 is warmest, darkest and bassist
020 is most balanced tuning
003 is most U shape and clean sounding
120 is darkest, thickest and most mid centric tuning
103 is bassiest U shape

Bass lovers rejoice because we are in quality meet generous quantity territory here without much of the guilty pleasure cons it should imply. The dual coaxial DD is incredible in the X and deliver an elastic attack like no other DD i’ve heard: it’s dense, weighty, rumbly and very round in punch without being to fatiguing in hard thumping impact due to this special back driver film that rebound and densify the infra bass extension and impact. This makes the mid bass creamier and heavier but most of all add meat and highly addictive vibrancy to bass lines that become more tactile and rounded in presence.
This is the wow effect here, at least for me, being able to follow bass lines even in busy rock, being able to appreciate its pure tone flesh that digs so low yet doesn't get lost in diffuse resonance nor feel too compressed.
The electric bass has both the textured attack lead that mixes naturally to the juicy bass release, we can see more frequencies under 50hz since it’s not suck out of soundscape and get captured and magnified by the unique acoustic design of the X.
It’s rare that in a rock track the electric guitar and bass line are as full sounding yet perfectly articulated and separated with their own singular space, and that…without feeling detached or artificial and staying smooth.
Then as a cello lover, i’m spoil here, this instrument can’t be confound with violin because bass is all but thin and sub bass isn’t just about dry presence, it’s warm and rich in texture, so the cello sustain is lush and wide in dense presence with this flexibility of attack that permit a life like rendering as if you were very close the instrument.
The kick is round and slightly warmed with extra air in and around it’s presence envelope, acoustic drum has this needed note weight and tuck that permit proper definition, the resonance don’t bleed over mids but blossom around naturally adding macro dynamic cohesion and richness, their no scoop in lower mids to make its presence sharper nor tame it’s natural attack-release, so those seeking colorless bass might find mid bass not clean or lean enough.
The X deliver a multi dimensional musicality that never feel static or too lean, the bass inject dynamism, note weight and density to lower mids instrument which become lusher without going too dark or warm, thanks to excellent macro layering of hybrid drivers configuration.
As a bass lover that feel always underwhelmed either by lack of flesh around the bass or tone naturalness due to this nowadays harman tuning obsession that is all about presence boost and sub boom without soul, the X is the ultimate solution to fully enjoy all aspect of bass goodness from electric bass tactile grunt, to vast weighty rumble to proper punch authority kick drum as well as proper articulation of low range instrument.
I will go as far as stating the X is the budget alternative to the incredibly over priced (yet great sounding) Firaudio Xenon6. Like with X6, once you get addicted to this kind of bass quality and fullness, you can't forget about it.

Keywords: Natural, Tactile, Weighty, Meaty, Vibrant rumble, elastic transient, bassist and cello specialist, warm lower mids transition


When you don’t listen to big bass music, you can think the X are mid centric because we have both lower mids and upper mids boost here, glued together with the bass and lean yet intense enough treble. This is why I conclude X offers a W shape tonality, because it’s a ‘’Jack of all trades, master of Bass’’.
Both male and female presence is lush and loud, the female are a notch more forwards and bright so people that are very sensitive to upper mids might find it too upfront even if not shouty nor sibilant, for warmer smoother mids i’ll suggest the little brother TSMR Feat which is even more mid centric yet darker in term of resolution.
Piano lovers like me are very spoiled with those X, we have the note weight and fullness, the natural warm tone when it comes to fundamentals, piano do sound papery or thin or too grainy in texture, and good treble extension permits natural note release too. Listening to Adam Baldych violinist playing in duo with Leszek Mozdzer pianist is pure bliss, each instrument layers is dense and wide in presence with organic layering, it sound bigger than life, so those preferring distant cerebral listening might find himself too invested in music here which is what I seek personal: being part of music. Lower note register of the piano has next level realism and fullness that few IEM can achieve. It's rare I can say piano has rumble and grunt unless I play on my own with the top open.
And this violin is mind blowing, even when it goes pizzicato and mixes in speedy playing with higher pitch piano note we have this well felt attack lead and release, and the BA speedy controlled attack is fully shown. As well, violin never sounds harsh or metallic, it has bite in a softly crunchy way, it doesn’t have abrasive harshness. Those who hate thin violin are in heaven with the X.
Again, we have a bit more loudness energy in upper mids, this makes the higher note of piano a bit more focused and sharply rendered, but not to the point of being piercing, just affecting the otherwise very mellow dynamic, without this boost I think macro dynamic will be too lean.
To note that if you choose 003 switch it does make attack of violin and other instruments more edgy, mids a bit more open, airy and crisp, but a notch thinner too, suddenly piano fullness isn’t as dense and vibrant. Most mid centric switch choice is 020, it's the one with fuller lower mids too, it mean vocal are more focus and dominant in the mix as well. Overall more organic balance too and more natural timbre.

Keywords: Lush, mid centric, colorful timbre, no harsh edge, good macro layering, intimate, male and female vocal specialist

Unlike the Feat, the treble of X isn’t too dark at all, the use of 2 sonion BA for highs sure permits a full presentation with plenty of crunch and snap though not a lot of sparkle and brilliance. This is to be expected with BA, but this time we have enough air, especially when going 003 switch choice that adds an attack edge as well as sharper and more forwards percussion which is great for classical symphony, rock and jazz with complex percussionists.
The resolution is very good with the X even if not analytical nor the cleanest on top when you use bass boost that adds euphonic resonance in the background.
The snare has plenty of energy and snap, while metallic percussions sound full with well controlled release extension but have softer attack lead. This means fast drum rolling will not be crispest in articulation and super speedy percussions line will not be tightened up in microsecond separation, it’s no EST treble here, yet it never sounds thin or unbalanced too.
The Percussion brush has this texture richness and natural release that truly impress, so the X shines even more with snare hits of all types than ultra highs percussions needing brilliance bite for proper attack definition, we can appreciate the drum texture while it’s hitted in different positions or with different sticks.
I think this underlines how rich the treble is but most of its energy comes from the lower and mid part of the treble then after 10kHz we get a smooth roll off, not a plain scoop or drop, just like using a slow filter instead of a sharp one on a DAC.
Sound info is plenty to be found but not forced on the listener.
Lack of brilliance will affect acoustic guitar and harp sharpness in note definition mostly as well as sens of air release, fingerpicking will feel tamed in attack, making string pulling movement hard to perceive and feeling scooped in energy, but fullness of instrument will be preserve some time with a peak in high pitch sustain then soften in release energy.
Electric guitars sound better and very rich in both harmonic and non harmonic sound info.
Overall treble is free of spike yet energic enough, it's not boosted in brilliance nor the sharpest in attack edge, the highs don't dominate the mix yet if we go 003 tuning choice these will sound quite bright and clear too.

Keywords: Balanced, crunchy, thick, speedy, smooth, not very sparkly-airy

The soundstage is above average, wide and tall, but not very deep especially when big bass hits occur. It's spherical in its shape and surrounds the listener like a cocoon. You're in the middle of music, center stage not being too recessed or compressed in presence density.

While not bad, Imaging isn’t a highlight of the X. It’s very holographic so it does not monitor like a realist to precisely pinpoint instruments which surround you closely. Bass lines are the main focus in terms of easy positioning, this means even in a busy track you’ll be able to follow it but mid and treble will not be as tactile and well rounded in layering.



You might think that the X are very easy to drive due to their 10ohm impedance but their low sensitivity of 103db ask for proper power to fully wake up dynamism as well as bass fullness joy.

A minimum of 200mW@32ohm is suggested to fully appreciate soundstage openess and macro dynamic energy, as well, clean crisp source will improve imaging. Too warm or too dark source as well as too lean source isn't suggested, especially source with mid bass euphonic boost that will blur even more bass and mids separation.

Due to very short nozzle, these can't be deeply inserted and foam tips lover might struggle. Proper shallow fit that don't block 4 nozzle hole of the nozzle end is suggested to fully avoid spatial compression, macro muddyness and tonl unbalance. Short wide bore eartips like the one seen in my pics is my go too, the Penon Fan2 blue eartips is a good choice too. I get good result with the Tangzu Sancai too even if not a short wide bore inner tips nozzle isn't too long and it's plenty wide.

Then when it come to cable, i find the stock cable good enough and not justifying urgent upgrade. Yet, depending of your need you can get slightly warmer or crisper resolution as well as more laidback or energic dynamic if you select a cable like Simgot LC7 (crisp and lively W shape) or Letshuoer Nebular (more mid centric, warmer but transparent sounding still).




The Feat is a warmer, darker and slightly more mid centric version of the X, which means going to X is a logical upgrade since it is superior in technical performance like resolution and imaging and offers a more energetic W shape balance.

The bass is extremely similar in both quality and quantity since these 2 use the exact same (excellent) dual coaxial DD. But the back passive radiator module connected to the DD of the X improves separation, clarity, transparency, texture details and layering as well as speed coherency of the X, it makes bass less thicken by warmth but a notch less weighty and punchy too. The Feat is chunkier and weightier in mid bass but more sloppy too, not as clean in separation nor as well defined in bass line delivery.

The Mids are darker but lusher with the Feat, vocals are a bit wider and more upfront in presence but in a less edgy way than clearer X. Mids' sound layers are more mushy and laid back in attack energy than more open and bright minds of the X.

The treble is more rolled off, less airy and snapp than the X, sound info are notably lower as well as percussions can get lost in the mix more easily.

Soundstage is superior in sense of openness, it’s wider and deeper while the Feat is taller and more closed on the listener.

Imaging is from another league with the X even if no end game in that department.We have more space between sound layers in both X and Y spatial positioning, separation is edgier in definition and less foggy.

All in all, I try to convince myself to get rid of the Feat but just can’t since I love that fully rounded tonality which is warmer, bassier and more laid back than the X. For people very sensitive to treble and aiming for a lush, dark and natural tonal balance i’ll suggest the Feat while i’ll suggest the X for warm W shape end game.Again, those 2 are very similar and the X is logical technical performance upgrade and offer even higher sound value due to this aspect as well as 3 and up tuning choice covering wider musical genre.


The X offers a warmer and darker W shape balance which feels smoother, more buttery and natural in balance.

The bass is chunkier and weightier, both mid and sub bass has more corpulency, attack is less boomy and more flexible. Slam has less resonance and lower mids are feed by warmth instead of getting veil by inner acoustic resonance that isn’t part of recording, bass line are juicer and more tactile with more natural tone and less presence boost that favor texture over substance more with the thinner boomier bass of Okavango which ultimately sound more out of place and more detached than more liquid, warmer tone of X.

The mids are lusher, warmer and thicker, more natural in timbre, less edgy and prompt to sibilance as well as slightly darker than dryer and thinner mids of Okavango. Oka is more transparent and open sounding in mids, it has more BA timbre grain and less cohesive transition in terms of lower mids which are less present. Mids attack has more bite and is overall crisper but more recessed too.

Treble is leaner and less crunchy with the X, the Okavango has more air around percussions as well as more accent in attack lead, level of micro details is superior too. It sounds thinner and more grainy too, it’s not as refined in both balance and timbre matching as the darker X.

The soundstage is similar in width, but taller and more holographic with the X, while it’s deeper and a notch airier with the Oka.

Imaging of both these IEMs isn't their main highlight, but the Oka have a more edgy definition of instrument presence as well as more space between them, so I conclude it’s superior in this department.

All in all, both musicality and balance coherence goes to X hands down, while technical performance can be concluded as on par yet the bass quantity and quality is superior with X as well as its impact control is less resonant and sloppy. Balanced armature used are superior too in terms of distortion and timbre, but tuning isn’t as analytical on top, it’s not as spiky in treble region which dig out more percussions and micro details presence with the Okavango.

VS ORIVETI OH700VB (1DD+6BA-1switch-700$)

The OH700 is more U shape sounding as well as crisper and more open in spatiality.

The bass has more sub bass boost and focus and less mid bass weight and punch (wtv switch choice). Punch definition is less edgy and rounded and bass line dominate more the balance which seem L shape in dynamic. The sub bass has longer rumble sustain than more dense, grunty and vibrant bass line of the X which is more tactile and meaty. X packs way more punch too but doesn't have as clean separation with kids, lower mids being less scooped and overall balance more warm and V shape.

The mids are clearer, more open and multi-layered with the OH700, macro dynamic is better articulated and upper mids are smoother and leaner. Vocals are a bit thinner and brighter, less lush and sirupy than the X. Male vocals especially sound less smooth and thick in timbre, as well it’s more prompt to sibilance with problematic tracks. Definition of instrument is crisper with the OH700 too which make polyphonic instrument ensemble better articulate.
X offers thicker, lusher and more natural mids that favor tone color over presence texture.

The treble is snappier and sparklier with the OH700, percussions have more bite and sharper presence, we have greater amount of sound info and micro details. X sounds less airy and smoother on top, more organic and cohesive together in balance, treble doesn't distract from mid range instrument and make overal X feel more mid centric and warm in macro dynamic.

The Soundstage is just slightly wider and deeper with OH700 but less tall and holographic, with the X your more in the middle of the music.

This means imaging goes to OH700VB, in that regard more BAs do improve sound layering which is more transparent and edgy in definition.

All in all, there is no doubt I prefer the lusher and more mid centric tonality of the X which sound more cohesive and natural as well as versatile for low and high pitched vocals and instrument. In terms of technical performance, the bass is superior with the X and mids is better tuned due to fuller covering that doesn't bypass lower harmonic as much. The OH700 is superior in clarity and imaging as well as treble extension and spatial cleaness.
The 300$ price difference doesn't offer a notable sound benefit, here it’s more about the more U shape tuning choice.



The TSMR X truly blew my mind with its utterly addictive musicality and capable technical performance that don’t go clinical or overly bright and analytical.

The X focuses on music and injects it with a bassy and vibrant dynamism that favor tone fullness and naturalness over texture grain and noise artifacts we often call micro details.

The balance is fluid and full of lushness, yet the X main highlight it’s is incredible bass quality that is generous in quantity too. Should you be a bassist seeking to monitor your bass line in lowest range, a bass tactility and density lover or even a basshead, you’ll find yourself mystify by the dual DD acting in tandem with it’s passive radiator to offer both a physical and musical delivery of blossoming low end.

But don't worry if your not just about bass, the X is a maestro of mid range naturalness and fullness too, with very impressive male and female vocal versatility as well as an energic focus on presence that avoid sibilance, shoutyness and harshness even with loud upper mids.

All in all, it's rare I have intense IEM crush like I did with the TSMR X, the Feat as well as Oriveti OH700VB come to mind, but one lack the technical greatness while other the tonal fullness and mids density.

So the TSMR X seem to be my favorite 2024 IEM for now, and this explain why it get a 9.5 for subjective musical enjoyment.



PS: I want to thanks Penon for sending me this review sample after my interest about X was too overwhelming due to TSMR Feat sincere love. As always, i'm not affiliated nor get $ compensation to write this review. The X is now part of my 300 IEMs collection. Here to stay.

You can order the TSMR X for 399$ here: https://penonaudio.com/TANSIO-MIRAI-X-10th-Anniversary-Limited-Edition.html
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Awesome photos !

David Haworth

Previously known as J Weiner
Tansio Mirai X A Feast for the ears
Pros: Medium sized shells that are comfortable to wear
Immersive sound with a choice of three bass levels via switches
Very good detail resolution
Wide soundstage
Easy to drive but responds well to amplification.
Excellent stock cable and very usable supplied tips.
Cons: Slightly small length of nozzle demands an ear tip with a longer core. ( Supplied green tips are perfect )
TRN T tips got left behind in my ear canal!

TheTSMR X was provided for our honest reviews and impressions, as part of an ongoing audio review tour in Australia. We would like to thank Penon audio for their generosity.
TheTansio Mirai X 10th Anniversary Limited Edition is configured with 2DD + 4BA + 1 Custom Film Retarding Driver Hybrid with switchable bass profiles
"X"as the 10th anniversary of the establishment of TSMR is a collection of years of technical accumulation, we continue to learn from experience, countless fine tuning, ten years of grinding a sword,through this work, complete self-breakthrough, and interpretation of our new understanding of sound.
The film slow pressure driver creates a more comfortable and relaxed listening feeling, which not only expands the sound field, but also makes the overall sound more natural and smooth, and the bass is more flexible.
Hollow coaxial structure dual dynamic driver, the rear driver through the hollow’s hole complete sounding, and produce a certain push-pull force on the front driver, not only to ensure sufficient energy, but also to provide a richer sense of layer, so that the quality and quantity of low frequency are greatly improved.
Using more efficient filtering technology, the background sound is cleaner,the mid-frequency vocal is clear and pleasant, the spatial stratification and positioning are clearer, and the high frequency is smooth and non-irritating.

The driver configuration is as follows. One side with 7 drivers, both sides total 14 drivers

Low frequency: 2 x 8mm strong magnet dynamic, hollow coaxial structure,Carbon mixed diaphragm
Mid frequency: 2 x Knowles balanced armature
High frequency: 2 x Sonion balanced armature

Full frequency effect: 1 x custom film retarding driver (this driver is detachable design, frequent disassembly is not recommended)
Low frequency control switch settings
Default standard tuning mode is 020, recommended to use this mode as a reference. If you do not want to use the bass tuning function, please ignore the tuning switches to use standard mode all the time.

0 indicates that the switch is closed downward,

1/2/3 indicates that the switch is opened upward.
Standard tuning (020 Mode), control factor: 1.0
Bass enhancement (100 Mode), control factor: 0.51
Standard tuning (020 Mode), control factor: 1.0
Low frequency attenuation (003 Mode), control factor: 1.47
The higher the control factor, the lower the low frequency energy.

All switches are turned off to NO BASS mode. Literally, with all switchesoff the bass disappears! Weird! I used Standard tuning (020 Mode), which gave me ample bass levels and a pleasing balance across the frequencies.


Source.F lac Files on my Hiby R3

Dacs used JCally JM10 and Hidizs S9 Pro Martha

Stock pale green tips and cable were used as no advantage was found using others from my collection.
Synergy was perfect with supplied kit.

Sound Impressions.

Big stage with great width and depth. Every album I listened to gives me the sense of the room it was recorded in and live tracks put me right in the auditorium. Audio is underpinned with strong visceral sub bassand solid mid bass with drums having a physical impact and cymbals with a great crash and decay. This two DD’s do a great job of producing some truly thunderous bass. And the great feature is with three switches controlling only the bass you can chose the bass that pleases you. Switch 1 gives max bass enhancement. Switch 2 is the standard tuning which I preferred and I would describe this setting as still being pretty bass heavy. Switch three attenuates the bass from the standard setting and some will find this give the best of all worlds. Note, the switches are NOT designed to be used in combination. They provide three bass settings only with the rest of the frequency untouched. Turn off ALL the switches if you want to hear an IEM with no bass!! Note number two. By describing the X asshaving heaps of bass, it does, but not to the detriment of the midrange and certainly you don't describe it as a basshead IEM(unless you switch on switch one! ) The sound remains balanced and mids and trebles hold their own in the mix.

Piano has realistic tone and weight and piano tracks are natural and very enjoyable. The treble levels are spot on, with plenty of details and extension, without pushing the envelope. I never felt like I was being assaulted by overly boosted highs. The word to describe the integration of the treble with the rest of the range is balanced.

Vocals exist in a spacious and airy environment and are neither forward orrecessed to my ears. Female and male artist's voices have correct timbre and emotion is conveyed naturally and very enjoyably. Let'shave a listen now to some of the tracks I used to highlight the X's chops. Check these tracks out if you have the time. You will see what I mean.

“On and On” by Australian artist Grace Cummings is a track with great percussion and cinematic orchestration with keyboards and horns.Grace has a voice that appears to spring from a deep well connecting her diaphragm to the massive tectonic plates below, with gravelly edges concealing its true power. The overall impact of this combination is a powerful, dense yet transparent sound which theTSMR X portrays to perfection.

Lighter indie pop of “Cardinal” from Kasey Mulgraves showcases close miked acoustic guitar followed by a driving bass and crisp snare percussion. Her vocal is recorded and presented close to the listening and the overall effect is a coherent and enjoyable listen.

“Charlie Patton Songs” by the band Gomez is a good test track for cymbals,percussion and high frequency flourishes. The TSMR X renders these with exquisite detail and a lightness that never strays into harshness or sibilance. Instrument separation and positioning is first rate.

“Billie Bossa Nova” by Billie Eilish has a smooth cruisy production with a slinky low bass and clicks and taps in the percussion that are very tactile and physical. Although the TSMR X supplies plenty of bass and the sound is very full, it's still a neutral presentation, without being warm as some double DD IEM's can.

“Sundream”by Rufus Du Sol an Australian alternative dance group from Sydney, is melodic House and Techno music with a silky smooth vocal over synthsand electronic drum beats. This dives deep with soaring vocals over washes of synth sounds and great pulsing sub bass. The TSMR X works perfectly with this track. Bass with the X is felt as well as heard.No need for bone conduction in this unit.

Other types of music including Daft Punk and good old Ozzy Osbourne felt at home with the TSMR X. I think they will do a great job with any type of music. I don't do Jazz but with that piano, drum and cymbal sizzle and an upright bass almost seduced me! This IEM will immerse you in the music and if there are emotions being emoted prepare to use the teary emoji!


Obviously from the above you can tell I have really enjoyed my audition period with theTansio Mirai X. The company has produced a superb earphone that works supremely well with all genres and to my ears has no flaws. There is one major problem. I have to send it on to the next audiophile is our tour group, sob. So, should you avoid it, short list it, or go right ahead and buy it? My advice is go for it if it's in your price capability!


100+ Head-Fier
The Midfi King
Pros: Visceral, addictive bass presentation
Gorgeous shells
Innovative tuning switches
Exceptional technicalities
Spot on timbre
Cons: A bit underwhelming packaging for its price point
Getting the right fit might be a bit tricky. Be prepared for some minor adjustments on ear tips.
Non modular cable (subjective)
Hailing from 2014, TSMR (Tansio Mirai) takes its name from the Tang and Song dynasties, a period synonymous with the zenith of ancient Chinese culture. This is my first foray into the brand, despite having stumbled upon the TSMR abbreviation while lurking in online audiophile circles. Let's just say it hadn't quite piqued my interest – until now! With the company celebrating a decade of sonic exploration, it's natural to wonder if their latest offering, the X, will be a special edition worthy of the milestone. Will it live up to the hype and carve its own niche in the crowded IEM market? Buckle up, as we delve into the X and see if it strikes a harmonious chord.

  • The gear on hand has undergone at least 10-15 hours of use before it was assessed.
  • No EQ is ever applied in my reviews.
  • For the sake of convenience, I try my best to use a stock setup. Not everyone has access to personal ear tips or cables. If personal ear tips, cables, or accessories are used, you will be notified.
  • As I try to be objective, my claims inevitably will be subjective and biased to my personal preference. I cannot stress more that you should take this with a grain of salt for we have different perceptions to sound and what we hear.
Maker: TSMR (Tansio Mirai)
Model: X
Low frequency: 2 x 8mm strong magnet dynamic, hollow coaxial structure, Carbon mixed diaphragm

Mid frequency: 2 x Knowles balanced armature

High frequency: 2 x Sonion balanced armature

Full frequency effect: 1 x custom film retarding driver (this driver is detachable design, frequent disassembly is not recommended)

Impedance: 10 ohms
Sensitivity: 103db


The X arrives in a modestly sized box, its color mirroring the IEMs themselves. While the price tag might have you hoping for a more extravagant presentation, it gets the job done without unnecessary frills. Let's delve deeper and see what sonic treasures lie within.


The included carrying case, while undeniably adorable in its compact size, does necessitate a bit more mindful cable management for the X. However, the clean white aesthetic and convenient zipper closure make it a practical choice for portability. While it won't accommodate extensive accessories, its slim profile ensures it'll slip easily into a pocket or small bag.


The X comes equipped with two ear tip options, distinguished by their color – a clean white and a classic gray. The white tips, ever so slightly softer than their gray counterparts, take the cake when it comes to comfort. While the stock tips deliver a decent sonic experience, I highly recommend exploring the world of "tip rolling." This audiophile practice allows you to experiment with different ear tips, shaping and enhancing the sound signature to perfectly suit your listening preferences.


The X's cable is a real looker, boasting a glamorous white finish accentuated with gold accents. It exudes a sense of luxury that's undeniable. However, a minor hitch arises in the lower half's stiffness. It tends to retain the coil you give it, which can be a slight inconvenience. On the upside, the cable has a satisfying weight that reinforces its premium feel. And to cater to your specific needs, the X offers terminations in both 3.5mm and 4.4mm flavors.


The X's visual appeal is undeniable. Crafted from a luxurious resin, it boasts a captivating teal hue that shimmers with a life of its own. A subtle vent strategically placed near the dynamic drivers hints at the sonic prowess that lies within. The faceplate itself features a circular vented design, adding a touch of intrigue. But the true star of the show is the translucent shell. This ingenious design choice allows you, like a fellow connoisseur of transparent marvels, to peek into the X's intricate inner workings. It's a visual feast that complements the sonic journey to come.

While the X undeniably boasts a head-turning design, a slight ergonomic hurdle presents itself. The nozzle diameter is larger than your average IEM, which is precisely why I needed to downsize from medium to small ear tips for a secure fit. Opting for softer tips would have likely addressed this issue as well. Despite this initial hurdle, I managed to achieve a comfortable seal after some experimentation. However, it's worth noting that the larger nozzle size may necessitate a different tip size than you're accustomed to. Just a heads-up for fellow audiophiles out there – a little trial and error might be required to find your perfect comfort zone with the X.

TSMR has a well-earned reputation for incorporating tuning switches into their products, and the X is no exception. Now, full disclosure – I've always been a bit wary of these sonic dials. They felt like a gimmick, a way to mask underlying flaws rather than true sonic mastery. However, the X's implementation forced me to re-evaluate my stance.

The switches are refreshingly simple. Switch 1 unleashes the bass beast, Switch 2 strikes a harmonious balance, and Switch 3 caters to detail-oriented listeners who crave a prominent midrange and treble presence. The sonic shifts between each setting are undeniable – a testament to the effectiveness of these switches. Switch 2 became my default choice.

Now, a caveat from my fellow X explorers – you can't activate these switches simultaneously. It's a pick-one scenario. But therein lies the beauty – the X offers a level of adaptability that caters to your ever-evolving listening moods. While I may have initially approached the tuning switches with skepticism, their undeniable impact has me singing a different tune (pun intended!).

Note: so what happens if you switch on 2 or more switches? I'll leave that to others to discover. I'm a “set it, leave it” kind of guy. I like to keep things simple and not over-complicate things.


The X's technical prowess is nothing short of a revelation. The soundstage boasts impressive width and spaciousness, offering ample room for every sonic element to breathe and shine. This expansive presentation can likely be attributed to the cleverly implemented vented driver. Depth, height, and width are all distinctly rendered, creating an immersive sonic environment that pulls you into the heart of the music.

Imaging precision is another feather in the X's cap. The placement of instruments and vocals is remarkably accurate, allowing you to effortlessly pinpoint their location within the expansive soundstage. But the true star of the show might be the X's timbre. Here, we encounter a remarkable level of realism, devoid of artificiality or unwanted coloration. Instruments and vocals resonate with a lifelike authenticity that's simply captivating.

Coherence is another area where the X excels. The drivers work in perfect harmony, delivering a seamless and unified listening experience. There's no muddiness or dissonance to be found, just a beautifully balanced sonic tapestry.

Moving on to separation, the X strikes a masterful balance. Instruments are distinct and discernible within the mix, but the overall presentation prioritizes musicality over extreme isolation. The separation is there to be appreciated, but it doesn't overshadow the song's natural flow.

In essence, the X's technical capabilities are truly exceptional. It delivers an impressive level of detail and precision, but it never loses sight of the emotional core of the music. This isn't a sterile, analytical IEM; it's a technical powerhouse that prioritizes musicality and sonic enjoyment.

The X's bass performance is nothing short of awe-inspiring. Words like "visceral," "captivating," and "full-bodied" barely scratch the surface. It's a clean, realistic, and surprisingly nimble low-end that leaves you wanting more. And the beauty lies in its flexibility. Thanks to the ingenious tuning switches, you can tailor the bass response to your heart's content. Whether you crave the bone-rattling power of Switch 1 or the more balanced approach of Switch 2, the X delivers. But even with the bass cranked up (courtesy of Switch 1), the X never loses sight of the midrange and treble. It's a masterclass in low-end control, where every bass guitar note and drum kick resonates with impressive resolution and texture. The bass presence is undeniably prominent, a detail that will leave bass heads grinning from ear to ear. But here's the shocker – even for a self-proclaimed "neutral head" like myself, the X's bass presentation is undeniably seductive. It's a sonic indulgence that's hard to resist. This powerful low-end makes the X a perfect companion for both music and movies, immersing you in the action with every sonic boom. Dare I say, it's the most captivating bass performance I've ever encountered in an IEM.

The X's midrange is a revelation. Vocals and instruments residing in this crucial frequency range are rendered with remarkable transparency, boasting a satisfying density that keeps them firmly anchored in the mix. The presentation leans ever so slightly forward, a touch that I found particularly delightful. It adds a hint of intimacy to the music, drawing you closer to the emotional core of every performance. Once again, the X's exceptional resolution and textural prowess shine through. Timbre is impeccably lifelike, with instruments and vocals sounding natural and uncolored.

Here's where things get interesting – the X's midrange deviates slightly from strict neutrality, adding a touch of flavorful magic. It avoids the sterile, flat presentation that plagues some IEMs. The X isn't afraid to infuse its sound with a touch of personality, and it succeeds admirably in doing so. Orchestral pieces and jazz arrangements come alive with this touch of vibrancy, making them an absolute joy to listen to. However, it's worth noting that the X's midrange might not be the ultimate choice for purists seeking absolute neutrality. It prioritizes musicality over pinpoint precision, a characteristic often associated with balanced armature drivers.

The X's approach to treble is undoubtedly smooth and refined. It avoids the fatiguing shrillness and sibilance that can plague some IEMs, opting instead for a relaxed, gentle presentation. This doesn't translate to a lack of detail, however. The X manages to present a surprising amount of treble information, ensuring that every nuance shines through. However, for die-hard audiophiles who crave the aggressive bite of piercing cymbals and raspy hi-hats, the X might feel a touch too polite. Conversely, those with sensitive ears will find solace in this smooth, non-offensive treble response. Ultimately, the X treads a careful line, ultimately leaning towards the warmer side of the spectrum. This might not be for everyone, but it delivers a fatigue-free listening experience that prioritizes sonic comfort.

Here are some tracks I usually listen to when reviewing:

That’s the way of the World by EWF
Africa by TOTO
The Girl in the Other Room by Diana Kral
Balmorhea album All is wild, All is Silent
Sila by Sud
Smooth Escape by D’Sound
Never too Much by Luther Vandross
P.Y.T by Michael Jackson
Ain’t no Sunshine by Eva Cassidy
Shoot to Thrill by AC/DC
Another one bites the Dust by Queen
Good times bad times by Edie Brickell
Alice in Wonderland by Bill Evans
Ain’t it Fun by Paramore
Redefine by Incubus
Far Away by Nickelback
Lovesong by Adele
Lingus by Snarky Puppy
Harvest for the World by Vanessa Williams
Love Bites by Def Leppard
No Such Thing by John Mayer
As by Stevie Wonder
Whip Appeal by Babyface
Ain’t Nobody by Chaka Khan
Futures by Prep
Landslide by Fleetwood Mac
Every Summertime by NIKI
SADE tracks
AC/DC tracks
Queen tracks

And many more… I always listen to High resolution format, being the least quality 16bit/44khz FLACS be it offline or online.

The X marks my inaugural foray into the world of TSMR, and what a delightful journey it's been. This IEM strikes a perfect balance between unadulterated musicality and a hint of analytical prowess. The implementation of the tuning switches is a masterclass in simplicity and effectiveness – a testament to TSMR's understanding of this sometimes-controversial feature. While I may not have initially embraced the concept, the X's straightforward switch design won me over.

The X's bass performance deserves a special mention. It's a revelation, a sonic experience that redefined my expectations for in-ear monitors. This is, without a doubt, the most captivating and well-controlled bass I've encountered in an IEM. Even for a self-proclaimed "bass-light" listener like myself, the X's low-end magic was undeniable. It adds a layer of depth and satisfaction to the overall sound signature, making every listening session a joy.

Considering its price point and exceptional performance, the X rightfully earns a crown as a champion of the mid-fi IEM segment. It's a fitting tribute to TSMR's decade of sonic exploration, a testament to their dedication to crafting audiophile-grade experiences.

A heartfelt thank you goes out to the Audio Geek group and its leader, Sandeep Agarwal, for providing the opportunity to experience this sonic marvel. The X has left a lasting impression, and I have no dou
bt it will leave fellow audiophiles equally enthralled.

PS: special thanks to @Dsnuts for walking me through the tuning switches. 😎
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What happens if you use more than 1 switches? A sound will ring in your ears telling "Fool! I said only 1 switch!". :sweat_smile:


Headphoneus Supremus
Pros: Shells are 6 grams a piece and on the smaller side of medium
First mainstream tuning here, different from the 3 other TSMR IEM products I have heard
Middle of the road tonality, showcasing a balance of even/complete and correct ideas
Totally detailed bass from 2X 8mm DDs in action
Full-on mids from selected Knowles BAs X2
Careful yet complete treble, due to the choice Sonion BA drivers X2
A seventh CFRD (Custom Film Retardation Driver) adds airflow and resonate abilities
Fun and careful like dating a librarian, yet provocative and sexy (like) when she lets down her hair
Somehow every aspect of BA timbre is addressed, meaning BA timbre is only slight
Tuning DIP-switches add a choice of bass replay
This is TSMR's commemorative 10th Anniversary Edition, won't you join in the fun?
Cons: On the verge of too small a nozzle, which I overcame with a longer ear-tip
Redcarmoose Labs
April 4th, 2024


Who is Tansio Mirai (TSMR)?
Tansio Mirai is a Chinese manufacturer who currently makes a number of specialized IEMs. TSMR or TANSIO MIRAI was registered as an IEM maker in China by the Beijing Tang Song Bouyan Technology Company in 2016.

The TSMR name is actually a play on words originating from the English language translation of “Tang Song era”. The Tang Dynasty and The Song Dynasty was an era of immense social change, scientific, agricultural and artistic progress. The Chinese invented gunpowder during that time as well as the printing press and the magnetic compass. The first paper money was invented in Song Dynasty in China during the 11th century. The name TMSR is in remembrance of such eras, ultimately bringing such values and dynamics into the future.

TANSIO MIRAI production as of today
TANSIO MIRAI TSMR 10 - 10BA $1029.00
TANSIO MIRAI Spark - 4EST + 7BA Hybrid $1499.00
TANSIO MIRAI Land - 2EST + 3BA + 1DD Hybrid $599.00
TANSIO MIRAI Akiba - 7BA + 4EST Hybrid $1550.00
TANSIO MIRAI Sands - 1DD + 3 BA Hybrid $319.00
TANISO MIRAI FEAT - 2DD + 2BA Hybrid $239.00
TANISO MIRAI X - 2DD + 2BA + 1 Custom Film Retarding Driver Hybrid $399.00
TANISO MIRAI HALO - 8BA + 4EST Hybrid $1,999,00
TANISO MIRAI RGB EST - 9BA + 8EST Hybrid $2,999.00

I only have personal experience with 4 TANSIO MIRAI IEMs. The first was the Sands, then the Land and then the TSMR 5 and now this X or 10th Anniversary as its called. Where in hindsight it seems (from my limited brand exposure) that this X is a slight new focus. Much like Penon did with their 10th Anniversary model, TSMR has aimed at the mainstream with this one. Shrugging-off any of that TSMR elitist (hyper) treble detail, to thrill only a fraction of the listeners out there…………….TSMR with this latest tuning is aimed at bringing the mainstream to their factory doorstep. That means it’s a party of sorts, an Anniversary party. In doing so they have adopted new technology in the form of 3D printing the shell. And brought forth a new style of driver which has that big duct you see on-top. As such it uses passive repetitive vibrations which in turn increases vibration amplitude. To celebrate their tenth anniversary they also reduced the price by 43%. Now whether you go along with the 7th driver being called an actual driver or not is questionable? Questionable too is the sale price (for a limited time) of $300.00 off? So the 10th is a limited Edition……..where that could mean that they will make less of them than regular models. Which in a way has me questioning the logic here. If the 10th sells so well, which it has turned out to do………..why would you only make a limited amount? Unless of course advertising………creating buying motivation through implied scarcity.

So whatever the marketing concepts are the TSMR-X or X as I will refer to it, is a small wonder. The X is a phenomenon here at Head-Fi, so much so that I’m not sure this review is even needed for it?

Word got around early on that the X brought something new to the table. That those 2DDs were put into action for a sonic reason, that those 4 BAs were selected carefully, and this CFRD is implemented correctly. The thing is TSMR maybe didn’t invent the CFDR (Custom Film Retarding Driver), yet they have used the theory here in a successful manner. A little on-line research enlightens us that a structure has in-fact been used before with 64 Audio and their APEX system. But sure, that’s the thing……..utilize every tool at your disposal to reach sonic success, and TSMR did.

There are three DIP-switches that alter the bass. Standard tuning is with the middle 020 switch up, and that’s my favorite, so all the music tests in this review will center around that tuning. Then there is 100, which means the left switch is only up, that produces the most bass. Then the opposite with only 003 up, that is full bass attenuation. Then finally there is a setting of 000, which is no bass at all…..I didn’t try it, nope not even curious about that setting. :)



The TSMR-X set-up:
Low frequency: 2 x 8mm strong magnet dynamic, hollow coaxial structure, Carbon mixed diaphragm

Mid frequency: 2 x Knowles balanced armature

High frequency: 2 x Sonion balanced armature

Full frequency effect: 1 x custom film retarding driver (this driver is detachable design, frequent disassembly is not recommended)

Model: X
Driver: 2 x dynamic + 4 x balanced armature + 1 x custom film retarding driver
Material: 3D printing high quality resin shells.
Frequency response: 5-30kHz
Impedance: 10Ω
Sensitivity: 103dB
Connector: 2pin 0.78mm

Cable Length: 1.2m

You may be curious if the 64 Audio APEX driver will slip into the port at the top? OK, maybe you’re not curious about such experiments? The APEX M12 module is slightly smaller so it won’t fit. Yet Penon says CFRDs are removable, except “frequent disassembly is not recommended” I guess they need to tell you in case for whatever reason they move? But truthfully I have no burning desire to take the CFRD modules out, especially out of a perfectly working IEM. And I’m pretty sure they don’t move at all………I’m not going to try, except I have done all kinds of bullying around with the X in the few weeks I’ve had it on hand and no, the APEX module, I mean CFRD module doesn’t move one bit.

2 Knowles middle frequency BAs
2 Sonion high frequency BAs
2 8mm Coaxial Carbon Mixed DDs
1 CFRD “Driver”

7 drivers in all


Cable comparisons:
I'm starting-off with cables as they are a great way to introduce an IEM and its sound signature. Sure many are skeptical of those darn (cable) things doing anything, so if you’re one of those types skip this section.

The review in many ways is the same without the cable descriptions. Except for me cables are maybe the most fun, as it is easy to get excited when a certain cable moves forward to enhance a particular sound response? Now I should probably disclose the most important statement of this review so far?

The X is so well balanced that it works with every cable in use today!

Yep, what that means is we are not trying to change the response to put out any fires or start any fires, so to speak. The TSMR-X is fine the way it is and absolutely great with the included cable. I say this as the TSMR Land and TSMR Sands were not the very best with the included cable. And it just so happens…..I’m almost certain this is the same cable that came with the Land and Sands? All this is because the X is incredibly middle-of-the- road as far as playback goes, also this style of easygoingness was also found with the Penon 10th Anniversary as well. And I will let you in on another secret early on here……..both 10th Anniversary models are both some of my very favorite IEMs to come out recently. While the Penon 10th gets me a little closer to my sound, there is a provocative sexiness in what the X does on a regular basis. Such findings have made this review super easy to write……..much like a simple diary of experiences.

And you may wonder how does the X pull this off? I will slowly get to that, but in short it is even, correct and complete in tuning and has very good technicalities to boot.

DSC_2035.jpegone one .jpeg

1)The Penon ASOS+ 8 wire, 24 AWG 99 cores Silver Plated Copper with Litz structure and special Purple Plug (Palladium) $215.00

2)The ISN GC4 Single Crystal Copper Gold Plated 4 stand 16 core $179.00

3) The Penon OSG Graphene infused Silver Plated Copper 4 stand 71 core Litz structure $299.00

4) The ISN S4 4 strand 63 cores totaling 252 cores silver plated copper $55.00

5) The ISN G4 Type 6 Litz configuration Graphene silver plated OCC with Graphene Gold paint, 4 shares 180 cores per share $99.50

Here is the thing, each cable offers a slight personality all to itself, and the charming thing is to find out just how the X displays such character. And I might add, some IEMs are in need of correction, yet the X is a kind where each and every cable property was focused in the purest of ways, gaining insight into the very center of each cable's attribute! Meaning in the regular 020 setting the X was behaved and went with every cable used today.

Probably my curiosity got the best of me to test where the included cable lands in comparison to the $55.00 ISN S4? I mean that would be a starting point just to see both if the ISN S4 was something or if the included cable was just that good?


ISN S4 above

The included cable v the ISN S4:

There is a specific reason why I choose the S4 to try out here. Call it curiosity, or maybe I’m simply too into this hobby, but the S4 is a rare bird. My first introduction was to the MMCX version of the cable included with the ISN D10, back in mid April of 2022. Even then I knew this S4 was a specialist cable, allowing for a style of bass control and clarity through diminishment of the lower midrange, clearing the path for vocals to emerge. The S4 also added stage from many cables, maybe very reason it was a mandatory inclusion with the D10. By its nature the D10 is an L shaped jaunt into ISN's idea of the perfect DD driver, and what came out the other end of the review was a capable IEM that actually had a profound midrange and even treble itemization………and was not foggy or really missing pace with the S4.

My next introduction to the S4 was the 2Pin edition which (all of a sudden) was an included cable with the ISN Neo 5. A week after the Neo 5 was released in the wild with the ISN S8, it was determined that the S8 was too sleepy of a combo with the Neo 5. And sure enough the S4 became a stark (vivid) turnaround due to cleaning up the Neo 5 bass fog and adding a wonderful stage, plus doing this magic with the vocals, making the Neo 5 one of the single best deals of the year. As more and more members contact me for advice on the Neo 5, I interface with it more and more, even after the review, to view the Neo 5 as even better at response qualities.

Even using the Neo 5 as a contender to future IEMs showed how the Neo 5 is not pulling any punches, and basically destroying the competition with realness of vocals, stage and vividness of presentation. When doing side-by-sides such completeness of stature ends up being something to remember. Therefore, look for the Neo 5 again later in this review as a comparison to the TSMR-X!

The included cable v the ISN S4:
I have chosen to compare these two as a question of could you upgrade your included cable by simply getting the ISN S4. I will spill the beans right off at the start to give you a heads-up to where we are going. Money spent on the other cables in this grouping would be money well spent. Still, what do we have as a cable included with the TSMR-X and what is the ISN S4 really like as an option?

The included cable is visually incredible, just like the TSMR IEMs are visually profound, and it is true that the included cable with the X is the same one that came with the Sands and TSMR Land IEMs. What this cable does is boost the 5-7kHz range, and was instantly found to be too bright with the Sands and the Land. So other more pure copper based cables are a way into success with the Sands and Land. Before even laying hands on the TSMR-X word on the street said the included cable works out well. That was my first clue that we may have a new and different sound signature with the X.

A more mainstream success story with the X……..and that is the fairy tale this review is about.

In fact you may not want to read any further……………just buy the X and be done with investigating it, and save yourself some time.


The included cable above


Screen Shot 2024-04-04 at 1.11.37 AM.png

Liberace style gold :)

Oh, you’re still here….? The included cable is first of all absolutely (physically) beautiful and I have to say the members who stated that the included cable works out are definitely on to something here. It has nice ear-hooks, and this Liberace style gold hardware with the white wire. The included cable means business here. Only still it is too 5-7kHz boosted with the X and will still make the X little thin sounding. Yes, it will work if it is all you have, and it is incredibly resolving, just it is holding back the bass notes.

The ISN S4:
Surprisingly the ISN S4 has even more bass thrusters going on. And while not as dramatic or as vivid as the other cables in this test today, the S4 was an ounce or two better than the included cable. Still I would save your money and not spring for the $55.00 S4, but wait and add a little to the cable fund before partaking of the winner-cables to come. Still this was a great side-by-side test.



Included cable above


The Penon ASOS+:
Look, this has been a cable that is so balanced, it goes with everything. The stage, the pace, the feel of it. The weight of the ASOS+ is 53 grams in 4.4mm, very close to the 44 grams of the 4.4mm TSMR-X included cable.

Yet somehow the ASOS+ shows better ergonomics, seemingly heavenly………….going into a more pliable and fluid demeanor all the time, in every direction, and on every day of the week. Sure the price for admission to the ASOS+ movie is $215.00, slightly over half the price of the TSMR-X, yet it actualizes it. Yep, it makes the X all it can be, within reason. I mean you don’t have to read any more of this review, simply buy the X and the ASOS+ and be done with it. Walk your dog maybe (give your cat a small fish maybe) as you don’t have to read any more words (in this review) here?


OH, your back? I guess I need to explain myself. Now we are jumping to the next level. Bigger stage, deeper, thicker and wider……so more involving.........and exciting. The vocals are pushed into farther existence forward, the bass (really the whole low-end) is now coming from a blacker background and more separated, holding bass textures. But really the best part is two fold, dynamic imaging and separation inside the midrange.

There are synth embellishments that are flowing into position into their very own separate stage on the outskirts of the stage. I could go on for a few more paragraphs, but this review is already way to long……….

And this isn’t a matter of sound signature preferences here, no...........the TSMR-X is so middle-of-the-road that most everyone has a chance to find happiness, except maybe the extreme bass heads and the treble heads, you know who you are. :)

But to put it into one sentence…….the ASOS+ causes the X to blossom into full actuality into what it has potential to become.


The ISN GC4:
Another wildly different cable here, and creating to its very own character. A very thin cable that performs like a thicker cable..............way above anything you would guess. As at rare times looks can be deceiving in the cable world. Weighing in at only 20 grams, the GC4 becomes not only lightweight but super thin. Yet the optical illusion here is reproduced by gold, yep……the GC4 has a Rhodium plated plug. Simply a build with copper and gold, except there is some silver in the solder. Before in the cable tests we were using the mid-centric WM1A with MrWalkman’s firmware.

Now we are going to jump to the thicker and more bass laden WM1Z. Also I’m doing this to prove a point, that the X goes with pretty much anything I own to parley wonderful results, why? Because it is even, complete and correctly tuned. So here now with the 1Z we are given (besides the bass) a fishbowl of imaging of treble around your head. I mean now we are really reaching a form of involvement. While the imaging is actually more dense in the midrange, the parley of elements sits further outside than maybe even the ASOS+ only because it is of less energy, and of less clutter. Sure maybe most of this is the DAP, as it can be argued that ear-tips and the DAP make more difference than the cable..............I won’t totally disagree with those folks. Yet here there is also the signature bass sculpturing of the GC4, that and a structure of treble and midrange elements. In fact I’m using one of my most treble laden songs, and it is absolutely fantastic.


Theater of Tragedy
Assembly (remastered)

44.1 kHz - 24 bit
Here we are experiencing the GC4 with all of its character intact! Yet that particular character goes to promote a style of listenability and image-density due to gold and copper. This is one of my brightest songs, yet everything is parlayed with style and finesse. And while imagine all the elements being thicker and holding a weight, stuff is still fast moving, and even faster due to the (low-end) tightening effect in the resulting 2X 8mm DD lows.

That in fact we have the bass in the pocket, thumping and yet holding exquisite pace and spacial clues to hear all this stuff.

While no way do we have the treble expansion of the ASOS+, yet this here is a different part of town………you know when you had a shot of the town's best Scotch and took to the streets……..that amber glow and fun makes me want to stop and postpone this review…………and simply listen for the rest of the day. I’m a guitar player and this exact guitar tone is simply great, crunchy and yet not too forward, in places like the bass. This once again cements our ideas of balance and predictability from the X, only there is room for exploration, to where we may never know what we will find with cable rolls, yet it is all good.


The Penon OSG:
Last week I did all these same cable rolls (before) and even wrote about it in the forums. I do this as testing cables on two different days (a week) hands you clarity of results. As we hear IEMs at times, we are not comparing IEMs we think, only subconsciously referencing the last IEM we reviewed, on the day before.

Time is the cleaner of tonal ideas to move and become more objective through spreading your reviews out into longer time-frames. Basically giving your ears and brain a rest.

The OSG was one of my favorites from last round, so let’s see where it lands. Using the WM1Z and the same ear-tips. Remember the Penon Quattro review I did near the last day of January of this year? No? Well that review covered the steps that were needed to be taken to reach audio nirvana. And sure some may be lucky enough to find that happiness on the first Quattro date, yet I found the Quattro had to be courted before she put out.

Here is the opposite really, easy to find access and involvement as the X goes with everything. The OSG once again shows how the X is a cable demonstrator. An IEM that lets the pure character of the cable through. And here with the 1Z the OSG are starting to come-off even more separated than the Sony WM1A from last week. Cleaner and more vibrant. Again less midrange energy than the ASOS+, yet holding its very own special charms to enjoy.

With Graphene we encounter a full sculpturing of bass, a smoother, more white and delineated midrange than the ASOS+, yet not holding as large of sonic footprint. The ASOS+ has its own ideas about size, and the thickness that the Purple Copper Plug and 2Pin plugs bring to the table. Where really they could be thought of as almost opposite. Where sure the ASOS+ is slightly more dense sounding with midrange itemization than the standard ASOS cable, yet there are other qualities to the OSG that make it a keeper. Sure this review will ramble-on with a comparison of the ISN G4 cable, another Graphene experience. Sure both the OSG and the G4 have this Graphene sound, especially in the bass sculpturing and midrange stage positioning, but the $99.50 you pay for the G4 only gets you in the Graphene doorway. The $299.00 OSG goes to proclaim a clearer pool of water, and looking into that pool we can see the depths of imaging, the further sculpturing of bass, and the fine details brought forth into midrange textures. There is this shiny white polish that really looks like the jacket of the OSG encasing the vocals, and separating them from the background stage.

The Penon OSG:
Where here there is a thickness...........thicker than pure silver that the Graphene proclaims.

It is separating and adding its own more detailed crunch to the guitars. The free-flowing and approaching stage elements show us where your extra hard-earned cash went. In fact it is this treble character that I can’t even describe, except it is a slight tone down from pure silver, but goes ahead and has its own style of transparency and energy. It is in-fact this separation that has me fascinated.............endlessly fascinated going along for the ride.


The ISN G4:
Only after the Penon OSG I had to double check (this G4) to see if the IEMs were not out of phase or something. Here we are experiencing a more linear G4 example of vocal playback, the midrange elements are there and spread-out from the vocals, but hold a lack of luster in comparison to the Penon OSG. Thinner of a more congested manor. And in the end, I have to (once more) try the included cable and the S4, just for schiits and giggles.

The palate cleanser:
Not sure if you have seen food testers at work, but they always have a beverage to equalize their tongue chemistry after trying a food sample. They will often use a mouth-full of Coke (as mouth-wash) to somehow reset their perception for the next food sample. At times these people work for large corporations and will help a company align the food or beverage taste to mainstream likes, or have the food item changed with more or less salt, or more or less sweetener. As trying the ISN G4, and ISN S4 (once again) showed more down to earth examples to where I have made a list of the results.

To rate these cables from best to worse on a scale of 5 being best………

Penon ASOS+ - 5 stars
PENON OSG - 5 stars
ISN GC4 - 4 stars
ISN S4 - 3 stars
ISN G4 - 3.5 stars

Included cable - 2.5 stars


IEM comparisons
Now we include a few IEMs as side-by-side tests

The Neo 5 came out recently and has pushed its presence into the limelight, being many a Head-Fi members favorite IEM as of late.

And maybe you already have the Neo 5 and want to know how the X compares? Or you have the X and have become curious as to the inevitability of a Neo 5 in your life?

I can say right off they are complementary and you could possibly get results owning both. Here I’m bringing out the ASOS+ cable and the Sony WM1A, as really together they offer a slightly mid-centric yet correct way to hear all three IEM tests today. The only other difference is a more donut type ear-tip (on the Penon 10th, and Neo 5) as I don’t need the length of the slightly longer wide-bore X ear-tips.

The ISN Neo 5:
Man this style of playback becomes a bigger stage and a wider illustration of the song.

Really the ASOS+ and Neo 5 are a force to be reckoned with. And truly there is better involvement here…..to me anyway. Just the size of the stage, and the size of how there is a thickness front to back, and even a little top to bottom? Vocals are bigger and more out front, becoming a style of unarguable clarity. Sure there may be a slight timbre tilt to the Neo 5 that travels upwards in comparison to the truly dialed in timbre of the X. But to me with the ASOS+ the Neo 5 is more IEM at a cheaper price. Yet you need the ASOS+ to get here.

The ASOS+:
The Neo 5 is so resolving of cables that you have to spring for the ASOS+ to climb to this particular mountain-top……but the view from the top is real and moving. Yet you can often change to Neo 5 adding a different tone by using the ISN CS02, or the wildly more clear and vivid yet smooth RENATA, really all three give you a window cleaning to delve into the true depths of the Neo 5 experience!


The Penon 10th Anniversary:
The 10th is a literal party between your ears, my favorite Penon ever!

The Neo 5 is now probably my favorite ISN, maybe gaining ground on the ISN EST50? But one thing I know for sure is the Penon 10th is by far the best thing they have ever made. Now keep in mind the 10th is not in any way........ perfect. The 10th is a hybrid and owns a guilty pleasure of not being anywhere near as cohesive as the Quattro, I mean really they are very different. But, but the main thing about the 10th is its well roundedness.

The 10th plays every music genre and goes with every device possible to gain fun. When I say fun, it's probably the most fun you could have legally? Slightly sloppy with the bass, yet even Hybrid dislocated in disbursement of imaging, it is this rolling party!

Here the 10th is even more itemized and clear than the Neo 5. Those EST drivers, they are not for looks here. A little more careful than the Neo 5, and more sophisticated and pure. Actually I take back that trash talk about the sloppy bass, cuz the ASOS+ cleans it almost right up. It’s probably the full lower midrange I was mentally referring to as there is a section where it is more musical than analytical?

This is music playback.............a sway and swagger that pushes through to get you grooving, forgetting about analyzation, or any other of those big words.

Compared to the TSMR-X the Penon 10th is bigger staged, more dramatic, and more fun. Where the X is quieter and more reserved. But to put it clearly, the 10th is the better IEM, simply a bigger and a more involving stage, heck even the vocals are bigger, closer, and holds more detail. What can I say, it is what it is.


Music tests:
Here for the music tests I’m using the SONY WM1Z and X, with the slightly longer wide-bore ear-tips and ASOS+ cable.


Theater of Tragedy
Assembly (remastered)

44.1 kHz - 24 bit

Time stamps only are reference to the digital file not the YouTube video.

As such this song goes about showcasing both treble items, vocals and bass, not to mention the timbre experienced here. This in-fact is one of the brightest songs I own, so it also is a sink or swim test due to any glare shown or stridence preformed. The opening (lol) is a cymbal crash at 00:00. I mean there is no lead-up or introduction here, this song starts out in full-force throwing everything and the kitchen sink at you. With-in that first two seconds we are transported to exactly where the producers what us, engulfed into the mood, rhythm and tone that is unavoidable here. Probably the coolest feature (right-off) is the interplay of both guitars and the bass. And that is the thing, this X replay has some of the very best timbre out there for a Hybrid. The guitars are correct in tone and timbre............showing a multitrack soundstage. Where inside of that soundstage is the first glimpse is the various multitracks tracks, then at 00:07 a cymbal splash way out to the center and right.

Though here the tone is not exactly played down or exaggerated, but correct. Surprisingly I used this same song with the Quattro replay and described it in the recent review. To where the Quattro was responsible for slightly better timbre, cymbals are made of metal………so that metallic quality is talked about when Head-Fi members say they are embracing the BA timbre, and there are no arguments here on that fact.

Typically Hybrids will dislocate the tone, only because much of the time it really is coming from a different driver and not from a full-range DD. So that driver is a small reed of metal and it is vibrating back and forth, it can start and stop faster than most DDs, therefor gaining transient response milliseconds over the DD brothers. This attack is cutting through both in attack, note-edge and tone….......separating itself inside the mix. The keyboards are almost ringing in effect right at 00:20. This decay with spice is made to cut through the mix, and it does with flying colors. Maybe they are using a slight distortion to give it a kick. Whatever they have done this keyboard section is not at the vary start, but is an introduced melody just as the Raymond Rohonyi’s vocals start around 00:20. The bass is also sounding like keyboards, and is given this distortion treatment, either playing though (something like) a Fender Twin Amplifier or directly to the soundboard.........or both. Then you figure out the melody was introduced at the start as a set-up to the full take-off of the song at 00:39. I mean sure everything is both slightly compressed and processed, yet this is the style of this music…….a departure Gothic Heavy Metal into this strange Euro-pop.

There is even remnants of Kraftwerk here, yet with the female vocals that are about to be introduced bring us fully home and into a groove. Theater of Tragedy became one of the best known Gothic bands upon introduction in 1995, but the year now is 2002. This album isn’t always accepted by fans, as how can you change your style to such an extreme?

A change of style:
You are probably goin to alienate your original fan bass, and take on a whole new crowd………that is if you don’t go down in flames first. This is introduced as a (as previously mentioned) dirty sounding Pop with an add of Industrial, yet is neither. To me it is unique and will always be remembered as an attempt at something different, almost like its very own sub-genre of music.

The melody and choruses are really holding the darkness of gothic music, only the lyrics are Pop. And to tell you the truth I’m not sure why I like this so much, I guess because it’s catchy? The TSMR-X is in the zone, but more careful and in-control than the Penon 10th Anniversary or ISN Neo 5 ever thought of being. Polite and careful, technical and correct, but not taking any chances. Slightly more straight-laced, prim and proper, yet holding that realness that gets us involved. Not as much reverberation as the Neo 5, nor as heavy of a lower midrange. Yep, everything is cookie cutter careful and exact. Interesting too that carefulness travels all the way up into the treble, as nothing is overly bright or even forced, and this song is forceful, if it's anything at all.

Female vocals:
Female vocalist/star of the show Liv Kristine Espenæs was the male vocalist's girlfriend at the time, and you can feel the playfulness in this album, as when it is her time to sing…….well she gets the spotlight. At just 00:54 she makes her entrance! Though the male vocals set-up everything........like building the house for her to thrive in. And while I have heard Liv Kristine Espenæs at times more forward, I have also heard her more (dull) behind the scenes too? But looking into her further, her voice holds a lot of detail, though not as much as the Neo 5. Still the Neo 5 does other things different too. The sung vibratos the character she creates is herself, and that is super important with BAs, to gain realism to where her voice sounds normal with-out the drama of off timbre.


Hans Zimmer
The Dark Knight Rises OST
Mind If I Cut In?

192 kHz - 24 bit
A long time IEM test favorite here. I mean this is a track that I have used for years and years. It is both well performed, well recorded, and never seems to get old. Plus I know this song like the back of my hand.

The heavy bass holdover at 00:00 is exactly that, a holdover from the last previous song. Yet somehow that impulse is a thrill to have at the start……like it is setting up boundaries right off……what nonsense am I spewing, it is simply gorgeous bass, and a great recording of gorgeous bass, even if it lasts for a mere moment in time.

This dark cello work and strings is also how the previous song “Gotham’s Reckoning” starts off too. Where remember this is a soundtrack, so the songs often segue from one to another. Still that initial bass physicality was a hint here of more drama to come, kind of like a sonic guarantee of performance.

Our listening mind:
That just goes to show you how our mind works. If we are provided......even a beginning appetizer, we are in attention, hoping to get more........actually re-assured more is on the way. Because the TSMR-X can do this, it can jump out of nowhere to provide the bass notes, if they are there in the song. At 00:15 we are immersed in cello work, a violin recording, and the space provided to offer separation, so that each constituent has its place in the recording.

I’m in wait for the piano keys, like a dog waiting for his treat…......he knows is coming. Yet at 00:31 I’m sidetracked here, it is the extra texture of that cello, and a hint of the piano to come! I mean the volume changed on us, and I can feel that volume change with the X. As simple emphasis does in recording energy...........which also corresponds to the playback emphasis by the musicians draw of the Cello bow….....…showing conclusion, or better yet transition in the song.

And yes, there is a faint recorded and processed set of metronome key strokes. These backing rhythmic elements are always used by Zimmer, though they come in as many different ways as pieces of his music exist. As this is the backdrop adding tension and propelling the song forward, as this is the first hint of rhythm, at least this style of rhythm. This simple one note over and over............maybe Zimmer learned (this technique) from previous scores (as a student) to use as a tool, as it is both simple and effective here. As at 00:42 the real piano notes take place. Simply out of nowhere they are our lead now, taking our attention. And with the TSMR-X the notes are very very close to perfect timbre……….I mean this is what you are paying for, and the timbre progress that forces older IEMs like the 2018 Fearless brand, to be placed into bedroom dresser. Really the interplay of the metronome sound and the forward piano here make-up 100% of the song.

At 02:06 it hits and does it ever accomplish the work at hand………glorious bass…......giant bass. But the deal here is that we can here both inside the bass note and hear the details of the texture, but more than that there is super precise volume changes going on with this note. And it is careful and detailed, not sloppy in any way. In fact I think this is what they call audiophile. A far cry from car-audio. None of that bass bleed into the midrange, just clear and precise, actually far better than I was expecting from the little TSMR-X?

So first and foremost this is Hybrid playback and what is gifted with that is that the DDs sound separate, only the bass is so very controlled and tight, that it become a part of the whole here. All the way past 00:21 that bass rolls and the recedes, and the push forward................ to take new alternate positions inside the stage. Remember I have been hearing this for years, and this is some of the cleanest I have heard this prolonged bass drop.

.............at 02:28 we are still living with that single prolonged note. Only there is of course the piano and what is becoming into focus, dynamic contrasts………just the fact that the low-end bass note is now large in size and (just by contrast) making the piano seem brighter. Here we are rewarded with an IEM that maybe just because it is a Hybrid, or maybe TSMR chose the drivers well........... yet here is the full deal……and.........the technicalities. The technicalities to pull this number off, and not just do it well, but do it justice.


About 80% solid 3D printing. With looking at it there must be a resonate chamber but it is near the top (guessing 20%) of the structure. I mean there are not just sound tubes (up there) as there is a single vent, that is delineated in a red ring or blue.

The CFRD sound tube:
There is a sound tube for this CFRD, there is a sound tube for the 2X 8mm DDs, and a separate sound tube for the two Sonion 2X tweeters and a sound tube for the 2 midrange Knowles 2X BAs. While the nozzle is slightly short, I was instantly able to remedy the situation with a different ear-tip, and I’m sure you could do the same if it was a slight issue. With the wrong donut ear-tips the X gets in a little to close and the actual ear gets in the way of finding an air-tight fit. The tuning switches are great if you use them, yet even adding the 100 setting for bass simply added more bass and didn’t affect the stage like some DIP-switch set-ups do. The size ends-up finding itself on the smaller side of medium and at only 6 grams a piece in weight they are the very definition of small. Sure the back-side of the X shows a semi-custom curvature, and a-top of that is the only printed nomenclature……the wording “TSMR-X” identical to both sides.

Looking inside with transillumination we can view two sets of crossover circuits on two opposing sides....maybe? Looking down at the nozzle end we can see 4 sound tubes with a small filter set-up on the two bigger tubes. And of course the two woofers are designated to allow for resonance being they are mounted near the top, right under the hollow faceplate area. Where all four of the BA devices are submerged in the solid 3D printed resin section.












Maybe I’m right that the X is totally well rounded…..no actually I’m sure of it, the X is the very idea of balanced going with many sources and all genres of music. As it turns-out this is TSMR’s entry into the total mainstream tune. The way they did the treble and midrange is much smoother than previous TSMR explorations…….it even allows use of the included cable. This tune could endanger the X into being boring or owning a lack of character which would make it homogenized, sounding like any other run-of-the-mill IEM out there. But no, the X is unique, Jeez, just look at it? Does this look like any IEM you have ever seen before? The X is special and somehow relays the best of every cable attached to it, due to transparency. This transparency allows for your music to come alive, that you are simply closer to the reality of playback, with no off timbre getting in the way. You see when those members say they want to embrace BA timbre, they really don’t mean embrace awful BA timbre, what they mean is they want to use it as a tool to kind-of create dynamics through contrasts……..and that is exactly what the X does. Just the amazing big and spread-out feeling my Batman OST did prove this IEM is more than just six or seven drivers, that they are masterfully placed and each driver, each sound tube being there for a reason. Just like all of us TSMR is still learning and even though this is their 10th Anniversary model, it is also an example of how they are greeting the next 10 years. This is an IEM I hope they springboard off into a new bolder direction, even a chance they will parlay this tune into a TOTL Flagship? Truly there is no reason they can’t pull this off, they are TSMR in the end. There is a level of build imagination here that shows progression in design and IEM ideas……….I mean who ever thought of making an IEM that has the BAs sitting farther down submerged in 3D resin and the woofers X2 8mm sitting on a separate level having access to the venting system? Such arraignments allow TSMR to locate the trim and careful ideas found in playback. This bass is big and full yet the very definition of textured and detailed. It’s way more detailed than the Penon 10th Anniversary and of course more controlled than the Neo 5 puts forth. The TSMR-X is more polite, it is more grounded, it is more even, complete and correct in playback. Call it sanity in replay maybe?

Yet what about the opposite, not everyone can marry a wild exotic dancer like the Neo 5 or Penon 10th claim to be. :)




I want to thank Penon Audio for the love and for the TSMR-X review sample.

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

Equipment Used:
Sony WM1A Walkman DAP MrWalkman Firmware 4.4mm balanced
Sony WM1Z Walkman DAP MrWalkman Firmware 4.4mm balanced
Sony TA-ZH1ES DAC/AMP Firmware 1.03 4.4mm balanced
Electra Glide Audio Reference Glide-Reference Standard "Fatboy" Power Cord
Sony Walkman Cradle BCR-NWH10
AudioQuest Carbon USB
HiBy R3 II DAP 4.4mm balanced
ifi GO bar Dongle in 4.4mm balanced
Samsung Phone 3.5mm
ifi GO blu in 4.4mm balanced with wired Type-C USB
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No, @vadinoy, they were some silicone aftermarkets.
David Haworth
You state. Specialist cable, allowing for a style of bass control and clarity through diminishment of the lower midrange, clearing the path for vocals to emerge... Is this the main mechanism that cables can alter the perception of the sound in you opinion? Got a link to any cable comparisons you have done/
@David Haworth,
Well, the cable change can do a number of things.

And not specific to the X....................
We are all looking for either a style of balance with an un-balanced IEM. Or maybe looking for a wider stage.........it can be so many things, maybe someone wants a diminished bass response. So a more expensive cable doesn’t always work as maybe the two personalities of IEM and Cable don’t mix, or you don’t get what you are after? Changing the vocal placement and texture could be one advantage.

My cable comparisons are throughout most of the reviews I write, I couldn't possibly put them into one place..........I'm too busy writing the next review. Good idea though.

Marijn Riz

New Head-Fier

The Tansio Mirai TSMR X came in on the 1st of match as of a Pre-Order at Penon for 400USD. For me it was worth the blind buy. I heard a lot of good things from Tansio Miriai so when I saw these coming on pre-order I jumped the gun.
Quick the switches there 7 different tunings and 3 recommended tuning Tansio Miria themselves. I left the graphs at the end. Personally I stuck with the 100 mode lifted the bass a bit + a lower mids got that little kick. With Easytips wide bores

Driver: 2 x dynamic + 4 x balanced armature + 1 x custom film retarding driver
Material: 3D printing high quality resin shells.
Impedance: 10Ω
Sensitivity: 103dB

Tonality: i felt it takes on more of a L shape on the 100 possession while the 003 becomes some more of a natural signature. 020 goes into a U shape. Very well done in my eyes. The bass hits the decay is quick, a very nice attack on string instruments. The dip in the mids didn’t bother me at all since I mostly listen to rock, new-metal, metal and 80-90’s rap and some Jazz, Soul and Blues. Vocals where nice Female or Male, Females are a tad bit more forward then Male, Male Vocals get that extra warmth from the bass region. I want to find out what every type of singing that Chester Bennington did felt really lively. For the saddish songs all the way to the long screams he can hold and do. RIP my favorite artist.

Bass: nice thumpy bass, quick in decay that does not linger in your ears, the rumble is also very well controlled. Bass hits one the bass hit is done and it also leaves the stage. and makes place for the other notes that are following. Even though it looks like a Heavy bass I found it personally very nice and done in a very controlled manner. The heavy deep hitting notes on a guitar like the E at about 83 Hz. Those are well executed even going up the range in notes the attack remains the same controlled manner. I didn't feel like the bleed that much into the mids like the graph shows us.

The Mids, lower mids are a bit recessed. There some instruments and notes can have lesser energy. after around 600-700hz already start to rise in until the upper mids. Due to the real rise of the mids there comes back that detail that can be given into the mids. Are these mids for everybody no, and not for every genre. The upper mids makes the Female vocals pop there is a nice balance then between the bass and the upper mids to give them equal note weight. They blend them well into each other. Some prefer more mids and I can understand why. some genres aren’t gonna be played back as well then others. But the driver in this case is very much in control, ruling it with a kinda a “iron fist”. They are rigid but yet clear in presentation.

Treble: after the pinna peak this rolls back off. so make room for the treble and give this IEM a very nice openstage effect. it’s not sibilant in any shape or form to me. It also feels nice and controlled by the driver in place. So you have the Vocals more upfront and the lead signings a bit pushed back and this I found to be really nice that it keeps the soundstage nice wide and open so you don’t get the feeling that it’s forced and cramped in space.

The Technicals. there in my eyes far above average of what i heard so far. Special with that Custom retainer bin to control the back pressure. It feels that the drivers in general have more air to breath and they can play more easily and in a controlled manner. it really scales well with mid-fi and probably scales even better with high end gear. I personally used a Fiio KA 17 connected to my laptop with Tidal and some local files. Even on busier tracks it holds its own stays in control.
Tansio Mirai did a good job to keep the soundstage nice quite open, in my book an above average for the soundstage. doesn’t feel cramp. Even on older tracks and somewhat worse recording it still tries to keep it open. Where other fall flat

But all said and done. Is this gonna be for every one i think not. if you want a very good bassy IEM that does things well this is one to grab. and ofc i can only speak for what i have in my possession. Some Genres of music will shine far, far more than others. So it’s gonna depend on your library of what music is in it. I have one nit pick with the package. The case is sooooo tiny how I'm supposed to fit them in there, so crammed and stuffed in there. I wish it had a slightly bigger case in the back.
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Headphoneus Supremus
TSMR-X, 10th anniversary edition.
Pros: Solid all resin build.
Good ergonomic shape for universal fit
Easy to drive.
Venting module affecting the entire sound.
Venting module preventing vacuum build up.
Scales to higher end sources
Scales to higher end cables
3 distinctive tunings via bass boost switches
Superb airy sound signatures.
Superb bass driven sound signatures
Audiophile bass IEM, L signature
Audiophile U signature
Audiophile neutral signature
Versatility on a different level
Full weighty, well-balanced trebles
Dimensional highly technical mids
speedy, tight full impactful quality coaxial bass.
Value for the price.
Cons: Tips, sources and cable sensitivity- need to find synergy
Included stock cable enhances the full treble end of the TSMR-X
Not the best for vocal lovers but has a unique vocal presentation due to an airy sound.
Trebles can sound a bit harsh for treble sensitive folks- different cable required
Bass can be a bit too much for some folks- #3 switch will reign in that bass
Tansio Mirai-X

Tansio Mirai has been making hand crafted premium IEMs for 10 years. How we know that is because they just released an IEM apply titled the 10th anniversary or simply TSMR-X .

Any IEM that titles a product with an anniversary edition in theory should bring the best efforts from said manufacturer regardless of who it is. I mean you don’t call it the 10th anniversary for no reason right? This is basically that company telling you. This is one of their finest efforts to date.

It is my firm belief that if you have been making audiophile grade IEMs for the past 10 years then you should by the end of that 10 years of experience come out with something substantial. Something to live up to the name of the 10th.

The new TSMR-X has a host of trickle down tech from the drivers chosen to the way it uses venting for its overall sound to bring something not only new but something very substantial for the audiophile. In this report I will go over the details of why I consider the TSMR-X a very appropriate title for this product. If you follow along the discovery thread I posted a few impressions about them giving an early depiction of how they sounded even out of the box. I feel I got enough time to figure out what the sound is all about and here are my findings.

The TSMR-X introduces something new from the company, a venting module they call “Custom film retarding driver” which affects the full frequency sound of the TSMR-X. This in conjunction with dual Sonion BAs for treble. Dual Knowles BAs for mids and 2x8mm carbon mixed/ composite dynamic for bass. Essentially it is a 6 driver IEM but Tansio describes the IEM as having a 7th with this vent module. I know there is some debate regarding this newer venting driver they have used on the TSMR-X but it does have an affect on the sound and your overall user experience in the end so it's not a wrong descriptor that it is using a 7th driver.

On top of what you get for the premium drivers used on the TSMR-X, Tansio Mirai incorporates an effective 3 switch instant bass sound eq system via tiny switches on the shells. The Switches adds legit variability to the sound profile for the TSMR-X. If you didn’t know, the tuning switch is not new to Tansio Mirai. They have been doing tuning switches on basically all their IEMs from TSMR-2 all the way to the RGBs. So these guys have had 10 years of know how to do this right. Will go into that much more so in the reader.

I asked what the vent module does and this is the answer.
“ The film slow pressure driver creates a more comfortable and relaxed listening feeling which not only expands the sound field, but also makes the sound overall more natural and smoother, and the bass is more flexible. Using more efficient filtering technology, the background is cleaner, the mid-frequency vocal is cleaner, the spatial stratification and positioning are clearer, and the high frequency is smooth and non-irritating.”

So apparently this vent driver affects the overall tonal character, technicalities: imaging, staging, sound separation and details. Also helping out the bass get more air and trebles to become a bit more smoother in presentation. And this is the aspect that really sets the TSMR-X to be different from your garden variety hybrids especially at the price it is being sold for. The venting driver also relieves any type of pressure build up that can happen to all BAs or hybrid sets that are closed in design. The end result is a comfortable listening environment where it's just you and the sound.

What it comes with.
TSMR-X comes with 2 sets of standard silicone tips. A smaller white square zip up case and what has become standard for Tansio Mirai. A very transparent SPC OCC cable that I am very familiar with. This is the same cable that I have seen Tansio Mirai use for the Akiba, RGB and the Sands.

I will go into why it might be a good idea to dig into your cable collection on this one. What's included in the box is actually a nicely transparent cable. However this is a case where transparency, while always a good thing for an included cable, does not match exactly well for the IEMs sound tuning. Some may not like how the cable enhances treble aspects of the TSMR-X tuning. Hence a highly transparent cable does not necessarily provide the best synergy when it comes to the sound profile of the TSMR-X. I will go into that much more in the cable pairings toward the bottom of the read. To be fair this SPC OCC cable that was included is a better option than what they have used in the past so this is a case of giving the consumer what they had on the shelves vs creating a new cable just for the TSMR-X.

I don’t find it necessarily as a negative, but for something that is lauded as a 10 anniversary limited edition. You figure they would match the cable up a bit better for better synergy between the IEM and the cable. In any case it is worth exploring different aftermarket cable options and this was also the case for the Lands, Sands and the RGB. The cable does a great job at leaning the sound a bit toward the Xs analytical side but much less in the way of musicality or warmth. And that is my reasoning for exploring different cable options. Folks that are dealing with IEMs at this level will roll cables anyhow so just know the TSMR-X will sound even better with better cable matchups that will suit your taste in how the TSMR-X can sound for you. As you will find out in this reader, variability is one of the TSMR-Xs strong points. With the inclusion of your favorite cables, even more so. This report however is mostly based on what was included so you know what to expect from the stock accessories.

Disclaimers. I would like to thank Penon and Tansio Mirai for the early review sample of the TSMR-X. My report here is strictly based on how I perceive its performance. The sample was burned in for a period of a week's time and is now ready for evaluation. You can order a set for you on penonaudio.com. I always review IEMs based on a minimum of 5 sources to test how they do with various source pairings and source signatures. The TSMR-X was tested using my Fiio K9 pro ESS, Fiio M15S, M15, Ibasso DX300Max, PB5 amp, Fiio BTR7, and IFI signature.

It seems 100% of the focus for this TSMR-X project was in the tuning and the RnD it took to get the vent driver to work for the sound they are going for. And they are also using a coaxial dual push pull bass design for the first time and much of the attention for its design was focused on these bass drivers and how it affects the rest of the sound tunings for Tansio Mirai. The accessories seem like it is the stuff they had on hand. The tips aren’t bad here and certainly usable but once again not exactly perfect for you and or how you want to hear the TSMR-X. I am sure you will dig into your canister of tips to try out. As all things that are worthy. Try this and try that to get the best sound experience using the TSMR-X which goes without saying.

How much you will like the included cable will depend on if you want the most detailed version of the TSMR-X. Let me explain. The tunings- I say tunings as the switches on the set will give great variability on the sound design on the TSMR-X is fantastic but the included cable enhances technical aspects with a skew toward trebles and detail. Which means you might think I am smoking something when you first hear these out of the box. Ya burn them in, smart guy! If you know what's good for you. They don't require a large burn in but some music played through the drivers for a few days will do wonders for overall sound coherency. Trebles do seem to smooth out a bit as well. Bass becomes more defined and tighter after some run in and here is where the TSMR-X needs that music to burn in. It will be the dual 8mm dynamics that will benefit the most.

How they sound?.
The TSMR-X are using some of the most effective switch systems I have seen since the InEar ProPhile 8- Look these up on the google if you're not familiar. And more recently the Penon Turbo. The default switch gives the most balanced take on the Xs sound and will be called reference as this is the mode the TSMR-X comes with. This time there is not a big variety of mix match switches. Each of the 3 switches gives you different levels of bass engagement. The 1 switch is roughly about 10dbs of bass and an increase of lower mids, the mid switch is about 7-8dbs of bass which is balanced with its upper mids region giving the most tonally balanced take on the TSMR-X sound. The 3 switch gives a more neutral leaning sound with a mild 5-6dbs of bass performance increasing clarity with a focus on treble and upper mids.

So to get it straight, you can’t mix and match these switches as it will default to the most boosted bass switch. The good news there is that. Each switch gives you a different sound profile that is not an afterthought on how the TSMR-X was designed. The #1 switch gives an effective bass focused sound that works great for EDM, hip hop, Reggae and RnB for example. A more L shaped design. The #2 switch gives a nicely balanced U shaped tuning that gives the best tonally balanced character and also a much cleaner mid band which works wonders for something like jazz, rock, metal, acoustical, pop, vocal and orchestral music. The #3 switch is the most technical as it has the least amount of bass from the 3 switches which effectively focuses the sound balancing toward details, upper mids and treble emphasis for acoustical, classical scores, vocal and even monitoring.

The default mid switch is on when you first get the TSMR-X and this is the best balanced tuning out of all the switch combos. What is interesting is you can make them sound absolutely ruler flat neutral with the switches all in the down position, which I believe turns off the bass altogether. But then you can add a big boy bass amount for the dual 8mm carbon dynamics for a bonafide basshead level of bass by throwing the bass or 1 switch up. It is madness just how different each flick of the switch will get you for sound. It's interesting that the bass switch tips the bass end which already has an ample 7-8dbs of bass and sub bass in reference mode to roughly 3dbs more. That is a legit bass boost from 7dbs. Not is all good however as the bass in this configuration brings instant attention to the bass area, but some folks like that. If you're the type that sacrifices other aspects of sound just for that big bass then this can be a good thing. Think audiophile basshead mode. I always tell fellow enthusiasts. You don’t include two powerful dynamics in a sound design to get you a paltry 5dbs of bass is my point. But then for those folks that want that, that's what the # 3 switch is about.

For an eclectic music listener you might want to stick with the mid #2 switch in the up position and the rest down which gives you what Tansio Mirai was intending you to hear from the TMSR-X, but then when your in the mood that #1 switch is always there for when you feel you need some extra boom for your music or the #3 switch which effectively drops that big bass end to more neutral levels. This brings a legit variability that you can’t say you get from your typical hybrid IEM.

In its reference form, the sound of the TSMR-X utilizing all of its drivers plus vent system sounds like a neutral harmon reference type tuning with a slight upper mid skew and bass emphasis leaning toward sub bass. Has extended treble emphasis with a rich, punchy rumbly very high quality dynamic bass end for a U reference balanced tuning. Tansio Mirai has always tuned IEMs with treble emphasis, monitor like presentations and always with bass. Their vision of sound balancing is not just about trebles and the details associated with the region.

Mids of the Xs reference tuning takes a step back in the mix to give a grander scope of what your hearing vs something more intimate. These might not appeal to folks that love their mids more forward in the mix. If you listen to larger set pieces that grander scale of sound comes into play with this type of balancing. TSMR IEMs have always excelled at classical orchestral pieces and the new TSMR-X is very exemplary due to its tuning.

I am used to having Penon tuned IEMs where mids are more forward with more prominence which are always a part of the Penon house sound. It is quite refreshing to hear a contrasting IEM where mids are not exactly forward in the mix, however this does not mean the mids are somehow lacking or are 2nd place to the trebles and or bass here. I wouldn’t call it recessed mid range on the other hand either. But more neutral in balancing. Even though the mids are not as forward as today's harmon tuned IEMs can be, what it does have is a crazy sense of air, imaging and some outstanding spacial qualities to the sound that seems to be a part of its design make up. Perhaps due to that vent driver and partially due to the relaxed nature of its balancing. You get a nicely wide above average stage with some really good depth to the sound. The real surprise with the TSMR-X even though I make it sound like it is more tuned for classical music. Which it excels at. Is just how versatile the TSMR-X is. It can be very precise and detailed for classical, it can give you a speedy bass end and that edgy guitar presence for something like speed metal, then it can give you the room filling low end proper for hip hop, EDM and reggae. Its versatility has everything to do with having a legit bass end and an addictive sparkly treble end to go with that reference level of technicalities.

There is some variance to the mid bands when you add the #1 bass switch with the rest of the switched down. This also adds some lower mid forwardness which actually works better for male vocals. Adds a slight warmth to the lower mid tonal character while adding body in the region. Once again showing the TSMR-Xs variability. Usually with tuning switches we get a very mild boost here and there and that is that however, the TSMR-X has to be the most versatile Tansio Mirai IEM to date due to how effective the switches are. You want 10dbs of bass for out and about? You get it. You want the absolute best technical performance out of the TSMR-X for some detailed listening?. Go back to the reference tuning with the #2 middle switch. You want absolute detail from your TSMR-X sound? Go for the #3 switch. Just from my own experience with the use of tuning switches. Most of the time I set it to one configuration and I just leave it at that. Not so much the TSMR-X. The switches are there when you're in the mood.
Low rider gif.gif

Generally, when we talk about reference tuned IEMs we are talking about forking out a small ransom of your life savings for the privilege to own a pair. Not so much the TSMR-X. On the Penon site, you will see that they value the TSMR-X at $699 but then they are sold for $399. What gives? Tansio Mirai does not have to give you a discount. What have you done for them?

The price is the price. However what they are doing is making the TSMR-X more accessible at a price that folks can actually afford. I know $399 is not a cheap amount of money but a comparable product at $399 is just not something you will see on the regular. What I mean by that is. Even though folks have tried cheaper reference neutral IEMs and sold them for cheaper. There is always something lacking about the end sound. Take the Geek wold GK100 for example. This is a cheaper set going for a reference type tuning for half the price of the TSMR-X.

Its brighter upper mid skewed IEM got some good qualities about them but the piezo treble with thinner notes with a more warmer bass dynamic end does not make it sound too cohesive or natural. Not bad but you can tell each set of drivers used does something a bit different and not all together there. It does not have the same sense of air nor does it have the stage element down for a real reference tuned IEM like the TSMR-X. Its stage is decently wide but has almost no depth to the sound. It was a good attempt at a cheaper reference tuned IEM, but in the end its driver quality and tuning is not exactly what the TSMR-X is. TSMR-X is more comparable to higher end products and while you might read reviews saying this IEM is good as an IEM that cost twice as much.. I am gonna tell you from first hand experience. I do believe the TSMR-X is easily just as good if not better than a lot of IEMs costing a whole much more cus I regularly review and own much more expensive IEMs. So Tansio Mirai is not pulling some magical number out of the air when they say its value is stated to be $699. IEMs with 3 legit sound profiles and the level of technical sound performance you get from the TSMR-X is much more closer to IEMs that the RP price has listed. Not so much for the current going rate at $399. If you ask me if the IEM has value in mind at $399. Sure hows about getting 3 legit sound signatures all can be sold at $399 each if you do the math on that rounding off the price to $400, that would be $1,200 total for 3 different hybrids that the TSMR-X can represent.

Is Tansio Mirais specialty. These guys dare to give you a larger treble shelf injecting a well balanced weighty treble notes with airiness and extensions people chat about on the threads. These guys are not shy about bringing the treble. I am no treble head but I do appreciate a good treble end for a hybrid design and you can’t say you have a reference tuning with a weak rolled off treble end.Two Sonion BAs were tasked to do trebles for the TSMR-X and its trebles are balanced extremely well including a mild emphasis in the 6-8Khz region. I know what you're thinking. Wow these are gonna be sibilant and will poke my ear drums out with sharp trebles. Nope. That's not how I am hearing the treble end on the TSMR-X. The trebles do have some presence in this sensitive region from what I am hearing, but it does not have a dip in this area either, meaning it was deliberately tuned to cover this sensitive area. What this does is brings a more weightier treble note that for the most part does not step out of bounds. This is where the whole notion of the cable pairings will be so crucial to how you're hearing the TSMR-X. A warmer copper based cable will tip the treble scale to be smoother than the intended tuning or if you like the stock cable, actually brighter.

In its stock form, it brings an extremely well balanced treble end from lower trebles all the way to the upper trebles. The TSMR-X has the treble notes and definition it does due to a more complete coverage of the trebles vs using a dip around the region that can cause a bit of an unbalanced treble. I have yet to hear a Tansio Mirai IEM with a rolled off treble by the way and they certainly are not going to start with the TSMR-X. The balancing on the sparkly treble end is done exceptionally well and just enough emphasis of very resolving and borderline edgy but at the same time this tuning gives a much more complete treble without the use of piezos or EST drivers. The end result is, there will not be a treble note or treble tonal quality you will miss on the TSMR-X. It's all there in full glory with some very addictive sparkle and shimmer to boot.

One aspect I appreciate about that treble is that it has a solid note weight to the treble end and has that addictive sparkly treble note that makes you take notice. Don’t mistake ample trebles with treble fatigue. As much as I have grown to appreciate the masterful design of its coaxial bass end, it is the treble end that has steadily grown on me since listening to them for the first time. To be honest I was initially a bit worried as their last hybrid offering the Sands had one of the largest treble shelves of any IEM in existence that can cause hearing fatigue if you're using the stock included cable, which so happens to be the same cable included on the TSMR-X. The good news here is that this time around, the treble area has a much better execution, better balanced and works extremely well with all 3 bass modes at play. The switches do not seem to increase the amount of emphasis for the region but the #3 switch with the least amount of bass emphasis out of the switch options brings more attention to the upper mids and treble emphasis for folks that want maximum detail.


Mids are handled by a dual Knowles BAs and I can tell why this particular set of BAs was chosen for the task. Unlike Sonion BAs with their more richer tonal character, this set of Knowles BA is a bit more precise in its tonal and technical character and here we get a mids performance that suits the TSMR-X and its goal of tuning variability from flat neutral to a more musical take on sound.

Mids have just enough forwardness to the sound to not be recessed with a slight upper mid skew for solid clarity and presence at around 8dbs of emphasis for the pinna gain aka upper mids. Female vocals stand out just a bit more so than male vocals but this aspect can be mitigated by using the 1 or bass switch which gives a bit more emphasis for the lower mids region. Again the variability on the sound is strong with this one. The mids tonal character is just ever so slightly on the dry side, which is not a bad thing especially if you're a tonal purist. While some of that rigid BA character comes through with its performance, what makes the mids bands stand out is not necessarily how the mids are so technical and clean or how it is balanced overall in the scheme of things. It is its dimensional and airy quality.

Well recorded tracks in larger venues you can actually hear the air and size of the venue, the patrons clapping in whichever area they are sitting. The plucking of strings. The breathing of the vocalists. The subtle strum of the brush work. Macro and micro details in space at this level is something you do not associate with IEMs at the price and here is my reasoning why these can easily be worth that $699 price point. I have yet to hear just how ambient the sound performance can be from any IEM I have heard at the $399 price point. Well, the Taniso Mirai Sands can sound like that but it has its share of flaws the TMSR-X does not thankfully share with. It is the sound layering in space that is spectacular on this IEM. Then you add a very high level of precision and that dimensional imaging and you get some spectacular results for larger Orchestral scores.

But then if you're in the mood for some grunge rock. Ya these excel at that as well.

The mids don't have the most realistic timbre which does show your typical slightly hard-edge timbre from BAs. However, its tonal character from anything for vocals, acoustics and synths sound exceptionally clear, vibrant and precise. Then add this crazy level of sound separation with layers you would expect for using two dedicated drivers for the mid bands that all have a part in a grand scheme of the sound profile.

I have plenty of IEMs with either forward mids or mids being the focus for the IEM sound tuning which takes a bit of that spaciousness and air out of the equation with a more intimate stage at the same time. Tuning an IEM is such an art form. If the sound is too forward, you don't get a grander sense of stage. But then on the other hand if you tune with recessed mids you get that stage element but then music sounds a bit unnatural. The TSMR-X has a nice balance of a broad stage with good depth and a true dimensional character to the sound that can make the TSMR-X regularly sound. Spectacularly immersive. This is yet another aspect that you have to explore with cable pairings. Mids can have more note weight and forwardness in the mix with the right cable.

Then there is its Bass.
Two very capable 8mm carbon based dynamics were stacked on top of each other in a coaxial push pull configuration. My prior experience from this dynamic design dates back to some old school Audio Technical days circa year 2014, the ATH-CKR9 and CKR-10. I still own. More recently Dunus, DM480 & Vulkan IEM. Just know the bass in this configuration doesn't mess around. Faster tighter bass, better texture with some very satisfying impact. This configuration for bass gives some clear advantages vs the standard single dynamic taxed with the low end.

First of all the whole entire sound tuning hinges around just how much emphasis the bass end the TSMR-X has. But what it has is a doozy. Push pull coaxial bass is something to behold, it isn't just two dynamics bringing the boomstick. It can do that but more so much like the rest of the sound signature, it is about precision. This configuration helps the speed of the dynamic. While speed is not exactly as fast as a pure BA bass design. It more than makes up for it with a speedy addictive highly defined bass end. With proper burn in the bass can be the highlight for the TSMR-X or play a clear supporting role depending on the switch you are using.

You're not going to hear a slow unrefined sloppy bass end here at all. The quality here ramps up just as much as how detailed the overall sound experience can be. The Bass end is one of the best in its class. If you wondered what your higher end all BA or hybrid set using BAs for bass could sound like with a very high quality potent dual dynamic bass in coaxial configuration can sound like instead. Look no further than the TSMR-X. If the broad wider sound profile and its breathtaking airy sound quality dont WOW you at first, the bass here certainly will.

Bass has the quality level yet once again that is not exactly common at the price you're paying for a set. Its sub bass reach is serious business. Its textured rumble is addictive and proper for any music that requires some authority down low. The TSMR-X variability is large in part to do with just how capable and complete the bass end here is. Not enough bass for you? Just flick on the 1 switch. I think even basshead folks will be impressed. In fact what you're actually getting is a bass quality akin to some of the better hybrids in existence and no one is going to think. Ok these could be better. Sure there is better but that's if you're willing to spend a whole lot more.

For what's included, the quality bass end and its variability is what truly separates the TSMR-X from the many me too hybrid IEMs that use a dedicated dynamic driver for the bass. This is how you do it right. This is how you give a choice to the end user. The bass end if anything gets an A+ from this bass head. Its tasty bass end makes this set a legit audiophile basshead set and I can’t really say that about too many IEMs I own. All IEMs include bass in the tuning process but not all of them have the quality level we are talking about here. Even at the big boy bass 1 switch we are talking about bass that is well controlled. It's bigger and controlled at the same time. It becomes a musical beast but that same bass can be moderate and delicate at the same time. How many IEMs you own that can do that with an adjustment of the switch? Is my question.

In the end I know this one went a bit longer than my usual review but hey these deserve every bit of praise you're going to read on the dedicated thread here. These are exactly the type of IEM we have to encourage manufacturers to come up with. It took a statement piece by a little unknown manufacturer in the scheme of things that bring so much value to really bring their name into the mainstream. Tansio Mirai is serious and if you can’t tell the TSMR-X is in fact a statement piece.I am here to tell you it does more than that. It raises the bar for hybrids sold anywhere near this price range that others will have to reckon with. It's the type of IEM you take on a long trip overseas as you can’t take. One IEM for EDM, one IEM for classical, and another for speed metal. No, you can just take the TSMR-X as it will excel at all of it.

I think the one area the TSMR-X will not be the absolute bees knees will be for vocal music. Believe me its broad spacious mids does a number on your favorite vocal tracks but I know most vocal lovers would prefer a much more intimate experience with vocal projection when it comes to listening to vocal music. But otherwise you want to talk about having 3 legit sound profiles in one IEM. These aren’t just slight tweaks to the same sound formula like what you see in most tuning switch varieties. The tuning switches will give you 3 different sounding IEMs in one. This do it all IEM is one of those rare IEMs that comes along that is so very much different from its peers in a good way that you have to take notice. If the sparkly treble and deep full impactful agile bass don’t get you into your music. Its airy broad holographic mid range will. Thanks for taking the time to read. Oh yea I am not done. Here are my findings for cable pairings.

Something this good in your collection deserves a better cable. These are my findings when it comes to cable pairings. The resolving nature of the TSMR-X means it will be very flexible to what type of sound you're going for more so than most IEMs. Cable matchups will make them sound a touch warm all the way to neutral bright. The cables I am pairing with the TSMR-X do not change what the essence of its sound signatures are but it will tilt the tonal character more towards how you prefer to hear the TSMR-X.

First off is one of the absolute best cables you buy at the $100 level. The ISN G4. This cable is a hybrid type cable meaning it uses both copper and silver plated copper but then it introduces some graphene in the mix as well. The end result is something that is both technical yet bringing the best of copper properties. This cable and the TSMR-X match extremely well as I feel it enhances and highlights the TRMR-Xs strengths. A better sense of bass impact. Adds some meat to the mids all while not degrading any of the detail aspects including its lovely sparkly treble end. The included cable is a similar makeup but I feel it's not exactly what the G4 here gives you. Love the spacious imagery of the TSMR-X the G4 actually enhances this aspect. These just synergizes with the X to the point where I thought it was one of the better matchups including higher end cable options.

Penon OSG. Ok so you want a cable that is a direct upgrade on what was included as you like what that cable does. That would be the OSG. The OSG is not only a more refined experience out of the TSMR-X but much like how the prior ISN G4 does not hamper any of the technical aspects of the X if not just outright enhance these aspects. Better stage, better depth, even better imaging, sound separation and details overall are all enhanced using these cables. What I like about this particular cable pairing is just how even handed the entire sound performance is using this particular cable. Very nice matchup. If you love the Technical aspects of the TMSR-X and want that as a highlight to your sound experience the OSG is one of the best in that regard.

The third is an Effect Audio cable.
The Cadmus X Ares S cable. Reason why this cable matches up so well with the TSMR-X is due to just how well balanced this cable performs for the 3 tunings on the TSMR-Xs sound profiles. The UPOCC copper type cable and the other half being cable cores from the Cadmus is something to behold on the TSMR-X. These cables give the best tonal character to the TSMR-X. Bass performance is just outstanding using this cable as its mostly high end copper cores it is using. Its mids have more substantial note weight to the sound. Yet at the same time, much like the prior cables there is absolutely no loss of technical aspects to the Xs sound profile. If anything this cable gives a distinct black background to your music which enhances that holography aspect of the TSMR-X. When a cable just synergizes with the TSMR-X. It just synergizes with it and that is what I feel this cable pairing is doing. The truth is I like all 3 of these cables and how they actually enhance the strengths of the TSMR-X but this cable pairing I felt is special.


I am continuing the experiment with cable pairings and some of you have expressed the need to mitigate a bit of the treble sheen on the stock sound of the TSMR-X. Again a lot of the cable pair ups I am posting about is subjective on my part but so I happen to own a lot of cables. The Effect Audio ARES S is an excellent match on the TSMR-X as it enhances its bass mids, retains its stage and its technical aspects but slightly smooths out the trebles. Gives a more tonally correct aspect to the TSMR-X sound. Instrument and vocal timbre is enhanced using this cable as it is a highly resolving UPOCC copper cable. I actually tried some of my other pure copper cables and I can tell a lesser resolving copper qualities that come from those pairings. Some actually make the TSMR-X sound a bit veiled which is a big no no.
In my opinion if your going to upgrade or enhance the TSMR-X a higher resolving copper cable is what synergizes with them. Not so much your garden variety cheaper cable that comes with many of your IEMs. If you want an enhancement of its tonal, timbral character with more of a focus for the TSMR-Xs mids and bass with a smoother treble note while maintaining that technical edge of the original sound. ARES S gets my vote for the best pure copper cable to use on the TSMR-X. If you can get a hold of the ARES S 8w that will be even better. Which will enhance the TSMR-X stage with even greater note weight. If you can't afford the 8w version. This impression was from just using the 4w version. It is very much a proper copper upgrade for the TSMR-x
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Recently, in spring sales, I got the NiceHCK OurLaura, and I would have to agree that it pair well, I also noticed with use that going back to the original cable, the treble ain't too bad either...
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I have to thank you to pave the path for TSMR X; lot of fellow brothers followed, myself included.

I have to say, this is my most expensive IEM but the sound worth every forint spent.