Tansio Mirai TSMR-5 & TSMR-6

TSMR Twins!

PROS: Craftsmanship, build quality, shell customization options, hand painted shells, quality control and overall packaging. (TSMR-5) – More balanced and musical/fun compared to TSMR-6, micro-detailed with good extension at both ends. (TSMR-6) – Clean midrange, clinical, micro-detailed with good extension at both ends.

CONS: Though it depends on preferences, music one listens to and threshold of sensitivity, upper mids and treble can seem bright (TSMR-6 even more than TSMR-5; I find mode 100 & 123 most balanced). TSMR-6 can use more bass.


I got TSMR-5 and TSMR-6 at a discount and paid custom duty to import the IEM into the country. I am not affiliated with the company or any of its sellers and write this review with an unbiased opinion regardless of how the review turns out.

Main 1

Links – Tansio Mirai Official Taobao Store

Genre preferences.

I majorly listen to rock, acoustic, pop, metal, and sometimes popular EDM songs doing the rounds on the charts.

About Tansio Mirai.

Tansio Mirai is a boutique brand manufacturing in-ear monitors out of Beijing, China. TSMR is a few years old and is run by a young entrepreneur who was initially an artist and sculptor before turning to manufacturing earphones. Since he studied art and sculpting in college, you can see the finesse in his craftsmanship, designs and custom hand painted shells. He runs a tight ship and anything coming out of his laboratory guarantees high quality craftsmanship.

TSMR-6 Left

Technical Specifications

TSMR-5 ($419)

  •  Driver Tech –  5 Balanced Armatures per side
  • Crossover: 3-way crossover with 2 sound tubes
  • Impedance – 15-27Ω@1kHz
  • Sensitivity – 113dBL/mW
  • Frequency range – 20Hz-20KHz
  • Noise Isolation – 26dB

TSMR-6 ($529)

  •  Driver Tech –  6 Balanced Armatures per side
  • Crossover: 3-way crossover with 2 sound tubes
  • Impedance – 15Ω@1kHz
  • Sensitivity – 115dBL/mW
  • Frequency range – 20Hz-20KHz
  • Noise Isolation – 26dB

TSMR-5 Left

Included in the box.

I got both TSMR-5 and TSMR-6 pre-launch and only received the IEMs with common accessories. Since then, Tansio Mirai has upgraded the packaging and accessories. Here is a list of all the stuff that I know is included in the box along with pictures of packaging and accessories kindly provided by Tansio Mirai.

  • In-ear monitor
  • Silver-Plated Copper cable (2-pin | 3.5mm)
  • Zipper Case
  • Assortment of ear tips
  • Cleaning tool
  • Switch changing tool
  • Manual with warranty and technical information

Build Quality, Fit and Comfort.

The universal shells of the whole TSMR line up are the same. The shells are made from medical grade resin and are stunning to look at. There are innumerable customization options where sky is the limit. The shells are extremely well made and you can clearly see that the attention to detail is top notch. Also, if you order them in clear shells, you can clearly see all the drivers and wiring neatly packed inside. All TSMRs are equipped with surface levelled 2-pin sockets.

They recently upgraded the whole package and TSMR-5 and 6 now come with a much better cable compared to the cheap TRN cable that the 3Pro and 4 Pro came with. The new one is a 2-pin, 3.5mm silver-plated copper cable and is very supple with minimal microphonics. It looks pretty good and pairs decently well with both. It is certainly better built than Fearless and Moondrop stock cables, though not as flashy and good as the hybrid cable that comes stock with BGVP DM7.

Fit, like previous TSMRs I’ve tested is very comfortable and snugness primarily depends on the choice of ear tips. TSMR uses an original design for their shells, one that was developed by TSMR in house. They are not like the semi-custom shape that you see a lot of companies using (which all look similar). With the right ear tips, they provide great isolation and stay comfortable for long periods. I’ve used them while travelling in public transport and never knew what was happening around me aurally while listening to songs. Also, the nozzles aren’t intrusive and remain comfortable over long sessions.

There is no lip to hold the ear tips. What they’ve done is made the part of nozzle matte finish to act as anti-slip. This is quite smart as it keeps most ear tips in place but don’t expect every ear tips to conform to the design. Funnily getting the stock ear tips on once you’ve removed them takes a slight learning curve which took me 5 minutes to master.


Tuning switches.

Here is what the switches do, with my explanation in the brackets.

  •  020: Balanced mode (In reality, it is more like diffuse field with linear bass and boosted upper mids than balanced)
  • 100: Bass enhancement mode (Boosts bass while making mids a bit calmer)
  • 120: Mixed tuning (Bass Boost to Default 020)
  • 103: Mixed tuning (Bass and Treble boost with a mids dip)
  • 003: Mid-treble enhancement mode (Treble boost with mids dip)
  • 023: Mixed tuning (Treble boost to Default 020)
  • 123: Mixed tuning (Lowest impedance, also the most balanced in reality IMO)

TSMR Switches

Page 2 – Sound analysis, Comparison, and Conclusion.

5 thoughts on “Tansio Mirai TSMR-5 & TSMR-6

    1. Hey! Well, 4Pro and 3Pro share more similarities than 4Pro does with TSMR-5 & 6. From the top of my head, 5 & 6 have better resolution, more definition and presence in upper mids and treble. 4Pro is smoother and an easier listen with slightly more bass presence. Soundstage widths are 6>5>4Pro. Hope this helps! 🙂


    1. My favourite IEMs are constantly changing depending on mood. As for a balanced armature IEM with emphasis on bass under $500, try Fearless S6Rui. Fearless S8F has good bass too but has more energy in upper mids and lower treble which takes major focus.


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