Tansio Mirai TSMR-3 Pro IEM Review








Tansio Mirai TSMR-3 Pro IEM Review      



Tansio Mirai is Chinese Company located in that is specialized in the production, design and development of IEM’s (In-Ear Monitors).

The TSMR-3 Pro features a Triple Balanced Armature Driver (3 BA’s on each monitor) configuration with 1 x Knowles ED29689 and 2 x Knowles 22955 type Armature drivers.



I would like to thank Tansio Mirai for providing me this sample via Penon Audio for review purposes. I am not affiliated with Tansio Mirai and Penon Audio beyond this review and these words reflect my true and unaltered opinions about the product.





The actual price for the Tasnio Mirai TSMR-3 Pro for the Universal model with standard faceplate/shell color is 219,00 USD and can be purchased from Penon Audio under the following link:


Purchase Link: https://penonaudio.com/tansio-mirai-tsmr-3.html                            

You have also the option to buy the Custom (CIEM) variants which are available in 3 different categories; Custom Fit (+60,00USD), Custom Type A (+35,00USD) and Custom Type B (+55,00USD). You can visit the link above for more information or can contact the Penon Audio Customer Service.



Package and Accessories:

The Tansio Mirai TSMR-3 Pro came in a simple white cardboard box with a small branding the top and a sticker with model specifications at the bottom of that box.


This box is including the following contents: 

  • 1 pair x Tansio Mirai TSMR-3 Pro (In-Ear Monitors)
  • 1 piece x Detachable Cable with 0.78mm 2 Pin Connector
  • 3 pairs x Green/Grey Silicone Eartips (size S/M/L)
  • 3 pairs x Black Silicone Eartips (size S/M/L)
  • 3 pairs x White Silicone Eartips (size S/M/L)
  • 1 pair x Double Flange Silicone Eartips (size M)
  • 1 piece x Cleaning Tool
  • 1 piece x Metal Pin (for switch tuning purposes)
  • 1 piece x Large Zipper Case
  • 1 piece x Carry Pouch
  • 1 piece x User Manual

The accessory package is very rich, while the zipper case of the TSMR-3 Pro is pretty large in size and quite useful.



Design, Cable & Build Quality:

The Tansio Mirai TSMR-3 Pro is a nice looking IEM with a semi custom fit and a transparent acrylic shell. The transparent acrylic material allows you to see the inner parts like diver, cables PCB etc of TSMR-3 Pro. The overall build quality of the TSMR-3 Pro is very good especially for an IEM at this price category.

On the front of the IEM shell is the part that we describe as faceplate which can be customized while placing your order. My review unit came in turquoise blue which looks quite beautiful.

On the left faceplate is the TSMR branding in silver, while the right one featuring the “Tansio Mirai” logo which reminds an Egyptian hieroglyph symbol.

At the back side of each monitor shell are 3 (three) tiny switches that have markings to guide you while tuning the sound. You have the option two switch between 7 possible tunings, which is a nice feature of the TSMR-3 Pro.

On the top of the monitors are the 2 pin (0.78mm) female connectors.

On the inner part is the slightly angled sound nozzle that features two sound bores. They is no filter that could prevent the insertion of dust or earwax, so you need to clean the bores with the cleaning tool that comes as standard accessory.

The TSMR-3 Pro is coming with a 2 Pin detachable cable which is braided and made of 4 cores.

The 2 Pin male connectors have black plastic housings with left and right indicators.

The cable sports on both sides heat-shrink ear guides, which are offering an extra comfort.

This cable features also a metal Y-Splitter in black color and a transparent plastic chin slider.

The 3.5mm TRS (unbalanced) headphone jack has a metal housing which is L profiled that I prefer over a straight one.



Fit & Isolation:

The monitor shell has an above average size and fits perfectly in to my ears. It offers a pretty good isolation which is on of the best in this price range, especially in the Universal Shell category and reminds me to my old InEar Stage Diver 3.



  • Unit driver                   : 1 x Knowles BA ED29689 + 2 x Knowles BA 22955
  • Frequency range        : 15Hz-20 kHz
  • Features                     : 3-way crossover 2 tubes
  • Impedance                 : 15ohm
  • Sensitivity                   : 113dBL/mW
  • Reduce noise             : 26dB
  • Connector                  : 2pin 0.78mm




The Tansio Mirai TSMR-3 Pro is an IEM with a pretty low impedance of 15Ω and a sensitivity of 113dB which makes it very compatible and easy to drive with weak sources like Smartphone’s, Tablet’s and DAP’s with low amplification.


Equipment’s used for this review:

IEM’s             : Tansio Mirai TSMR-3 Pro, Campfire Audio Comet, iBasso IT01s
DAP&DAC’s  : QLS QA361, Cayin N5II, xDuuo XD-10 Poke



Albums & tracks used for this review:

  • Gogo Penguin – Raven (Flac 24bit/192kHz)
  • Otto Liebert& Luna Negra – The River (DSF) – Binaural Recording
  • Vivaldi – Le QuarttroStagioni “The Four Season” (Wav 24bit/88kHz)
  • Elton John – Your Song (Flac 24bit/192kHz)
  • David Bowie – Black Star (Flac 24bit/96kHz)
  • Dave Gahan – Kingdom (Flac 16bit/44.1kHz)
  • Eric Clapton – Unplugged Album (Flac 24bit/96kHz)
  • First Aid Kit – My Silver Lining (Flac 16bit/44.1kHz)
  • London Grammar – Interlude (Live) (Flac 24bit/88kHz)
  • Laura Pergolizzi – Lost On You “Live at Harvard and Stone” (Wav 16bit/44.1kHz)
  • Rush’s – Leave That Thing Alone (Flac 16bit/44.1kHz)
  • Liquid Tension Experiment 2 – Acid Rain (Flac 16bit/44.1kHz)
  • Opeth – Damnation (Wav 16bit/44kHz)
  • Metallica – Sad but True (Flac 24bit/96kHz)
  • Megadeth – Sweating Bullets (Flac 24bit/96kHz)
  • Slayer – Angel of Death (Flac 24bit/96kHz)
  • Armin Van Buuren – Vini Vici (Spotify)
  • Lorde – Royal (Flac 24bit/48kHz)
  • Tom Player – Resonace Theory (16bit/44.1kHz)
  • Massive Attack – Angel (Flac 24bit/192kHz)
  • Portishead – The Hidden Camera (MP3 320kHz)




Switch Configurations:

The Tansio Mirai TSMR-3 Pro is an In-Ear Monitor which has 3 build-in sound tuning switches for fine tune the sound signature. These 3 swithes allowing the user to vary between up to 7 different sound signatures. You can increase or decrease the treble and bass quantity. People who listen to genres like EDM, Pop, Trance etc. can chose the Mode 1 with the combination 1-0-0. This combination is adding additional bass and body to the general presentation, without to chance negatively the amount of detail retrieval.

Those who want an increase of the midrange and treble region can chose the Mode 3 with the switch combination 0-0-3. But people who prefer a balanced presentation like I do have the chance to switch to Mode 2 with the switch combination 0-2-0, which I will use during my sound analysis for the TSMR-3 Pro.

Here is a table with detailed explanations for the possible variations;

(0 means switch down, 1/2/3 means switch up.)

  • Mode 1:
  • 100: Bass enhancement mode
  • 120: Mixed tuning


  • Mode 2:
  • 020: All balanced mode
  • 103: Mixed tuning


  • Mode 3:
  • 003: Mid-treble enhancement mode
  • 023: Mixed tuning
  • 123: Mixed tuning (lowest impedance)



The Sound:

The Tansio Mirai TSMR-3 Pro has a V shaped sound signature with a laidback presentation. The bass is strong and shows good depth, the midrange is smooth and pretty musical, while the upper midrange and treble is controlled, warmish and well pronounced.



The Tansio Mirai TSMR-3 Pro is showing a good subbass depth and extension for a In-Ear monitor that is producing its bass with a BA diver. The subbass has an entertaining and soft tonality and I was able to here the deep and strong subbass rumble in songs like Lorde’s “Royals”, Massive Attack’s “Angel” and Armin Van Buuren’s “Vini Vici”.

The subbass rumble is maybe not as strong like with bigger dynamic drivers but the quantity and intensity is pretty good, which is also quite controlled in its presentation.

The TSMR-3 Pro has some strong and pronounced midbass presentation that has a fairly neutral tonality. The midbass presentation has a soft and musical character and hits fairly solid. Instruments like trumpets or cross drums are pronounced, while bass guitars are slightly warmish and thick/bold in its tonality.

The bass of the TSMR-3 Pro shows a good level of warmness and has average speed. The bass is successful with genres like EDM, Pop, Hip-Hop etc.



The midrange of the TSMR-3 Pro is slightly recessed due to the V shaped sound signature and is showing a musical and slightly warmish presentation. The midrange has an average level of transparency and clearness.

The lower midrange offers good depth and warmness and doesn’t sound thin or dry. This makes male vocals quite natural and musical in its tonality. The male vocal presentation shows good depth and fullness, with average clearness and transparency. Here are no negative situations like muddiness.

The peak of the upper midrange is around 3kHz which makes it pretty pronounced. This is the reason for the sibilance free and musical female vocal presentation, which is also quite transparent and emotional. Female vocals are slightly more detailed than male vocals.

The Tansio Mirai TSMR-3 Pro has a slightly warmish and thick/bold instrument tonality with a musical presentation. Instruments like guitars sounding warmish, bassy and pretty clean, while violins are slightly bright and warm in tonality without to show any sibilance or sharpness. Other instruments such like violas have a thick tonality and sounding pretty emotional.



The treble range of the TSMR-3 Pro is slightly warm and a bit thick and is not too hot or too bright. The general presentation of this are could be described as quite controlled and musical.

The level of airiness is moderate, which is enough for a detailed and clean presentation.

The lower midrange of the TSMR-3 Pro is pronounced, while the quantity and extension is pretty good for this price category. The upper treble range on the other is less pronounced and the extension is noticeably shorter.

Instruments like cymbals are slightly bold/thick and warmish in its tonality, while hi-hats are lightly pronounced. Crash cymbals are shown with average intensity sharpness, while the hits are in general fairly controlled.



The soundstage of the Tansio Mirai TSMR-3 Pro shows a sufficient performance for a fairly precise separation and placement of vocals & instruments. The soundstage has an average width, while showing a bit more depth and the level of airiness is on a moderate level, while the general presentation is slightly laidback.



Some Short Comparisons:


Tansio Mirai TSMR-3 Pro versus Campfire Audio Comet:

The general tonality of the TSMR-3 Pro is warmer, fuller and more musical than the Campfire Audio Comet, which sounds a bit dry.

The subbass depth of the Comet IEM is on an average level, while the TSMR-3 Pro shows better depth. The midbass region of the Comet is lightly pronounced compared to the punchier, stronger hitting presentation of the TSMR-3 Pro.

The lower midrange of the Comet doesn’t showing much depth, which makes male vocals a bit thin sounding compared to the TSMR3 Pro. The upper midrange of both IEM’s is pronounced that makes them pretty successful with female vocals.

The upper midrange and treble of both IEM’s has a strong emphasis. The Treble detail, extension, intensity and airiness of the TSMR-3 Pro and the Comet are pretty close in performance.

The soundstage of the TSMR-3 Pro is slightly wider and deeper then those of the Campfire Audio Comet, while TSMR-3 Pro offers more space and neutral air between the instruments.




Tansio Mirai TSMR-3 Pro versus iBasso IT01S:

The iBasso IT01s is a pretty balanced sounding In-Ear Monitor with a slightly warmer than neutral tonality, while the sound signature depends highly to the used source and can vary from slightly V shaped to a wide U shaped or flat signature.

The Tansio Mirai TSMR-3 Pro is more successful in terms of subbass depth and midbass intensity, while the iBasso IT01S has the upper hand in terms of bass speed and tightness.

The midrange of the iBasso IT01S is more forward oriented compared to those of the Tansio Mirai TSMR-3 Pro. The TSMR-3 Pro is more successful with male vocals, while the IT01S has the upper hand for female voices.

The upper midrange and treble of the IT01S is more energetic and shows better extension than the TSMR-3 Pro.

The soundstage of the TSMR-3 Pro shows better depth, while the iBasso IT01S has the upper hand in terms of soundstage wideness.




The warm, musical and rather emotional sound character of the Tansio Mirai TSMR-3 Pro will satisfy many audiophiles looking for an in-ear monitor with sound-tuning capabilities, a good-looking, semi-custom monitor shell for an affordable price.



Pros & Cons:

  • + Warm & Emotional Tonality
  • + Musical Midrange Presentation
  • + Bass performance
  • + Forgiving Treble presentation
  • + Sound tuning switches (for up to 7 different sound tuning possibilities)
  • + High Quality / Good Looking Universal Shell


  • – A cable with better quality would be good


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