Description
Enjoy reference-grade sound from the 64Audio Trió. This gorgeous IEM is fitted with 1 dynamic driver and 2 balanced armatures for a smooth sound signature. The incredible LID, tia and Apex Core technologies enhance the laid-back playback and immersive 3-dimensional feel in your music.
Say ‘No’ to Distortion with tia
The 64Audio Trió’s patented Tubeless In-Ear Audio (tia) system reduces unwanted resonance and distortion for a transparent and lifelike sound. This is achieved by allowing the single dynamic driver and 2 tia balanced armature drivers to radiate freely in the single large tia bore with no obstructions in front of the drivers. It features special acoustic chambers instead of tubes that constrict the sound of the drivers.
The Apex IEM
The Air Pressure Exchange (Apex) Core allows a seamless airflow and is fitted through the entire solid aluminium shell. A perforated grill on the elegant brushed aluminium faceplate prevents the obstruction of air for the effortless reproduction of music. This patented vent releases air pressure for better comfort and lesser fatigue while enhancing noise isolation that’s similar to the m15 module.
Pick Any Source Device with LID
The different source amplifier output impedances of smartphones, DAC/Amps, Hi-Res Audio Players and more, can cause the frequency response to vary across devices based on the increase in resistance. A patented Linear Impedance Design (LID) circuit corrects the non-linear electrical resistance of the multiple driver-sets to restore proper interaction with the source device. It preserves the desired sound signature while staying constant and reliable.
Driver Type/Count: 2 precision BA drivers, 1 dynamic driver
Driver Configuration: 1 tia high, 1 high-mid, 1 dynamic mid/low
Frequency Response: 5Hz – 22KHz
Sensitivity: 104db @1kHZ @1mw
Impedance: 5.5 +.5/-1.5 Ω from 10Hz – 20kHz
Crossover: Integrated 3-way passive crossover
Isolation: -15dB internal apex technology
IN THE BOX
Trió Universal In-Ear Monitors
64 Audio Sticker
64 Audio Premium Leather Case
TrueFidelity Eartips (S,M,L)
Silicone Eartips (S,M,L)
48" Detachable Premium Cable
Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form
64 Audio is a leading manufacturer of high-end in-ear monitors for audiophiles, musicians, and professionals. With a focus on innovation and craftsmanship, 64 Audio delivers unparalleled sound quality and precision. Discover their range of custom and universal-fit models at The Audio Store and experience audio like never before. Shop now!
I got the Trio as an upgrade to my ThieAudio Monarch MKIIs. The Trio is a fantastic step up and superb IEM that complements (and trumps) the MMKII. I couldn’t agree more with 64 Audio’s definition of the Trio when they say that it is a perfect balance of analytical reference sound that’s also dynamic, fun, and engaging while being extremely comfortable for long hours of listening (thanks to the compact size and APEX). It presents a sweet spot between reference-level clarity and a smooth sound signature for extended listening. It is a light IEM and extremely well-built. And believe me, APEX makes an enormous difference. It causes almost no fatigue and pressure build-up in my ears and makes the listening experience even more relaxed. The imaging and soundstage are also top-notch as I can hear each individual instrument's sound and where it is playing from on the stage. I am using the Trio paired with my Qudelix 5k and Shanling UA3. My next plan is to upgrade to a balanced cable. On the topic of cables, if there's one thing that I disliked, it is the absence of a Balanced Cable after paying so much. 64 Audio can surely do better for the money they are charging for this IEM.
One more thing- initially I had planned to buy the U12T but after auditioning it, I realized that I prefer a hybrid drivers-based setup instead of an all-BA drivers-based one. Hence, I strongly recommend that you try out various IEMs before paying so much money.
In a collection of many big hitters, I find Trio to be my best IEM. It has the sweet spot between musicality and reference tuning, and the bass is quick and tight.
Holographic soundstage adds to the magic.

Description
Enjoy reference-grade sound from the 64Audio Trió. This gorgeous IEM is fitted with 1 dynamic driver and 2 balanced armatures for a smooth sound signature. The incredible LID, tia and Apex Core technologies enhance the laid-back playback and immersive 3-dimensional feel in your music.
Say ‘No’ to Distortion with tia
The 64Audio Trió’s patented Tubeless In-Ear Audio (tia) system reduces unwanted resonance and distortion for a transparent and lifelike sound. This is achieved by allowing the single dynamic driver and 2 tia balanced armature drivers to radiate freely in the single large tia bore with no obstructions in front of the drivers. It features special acoustic chambers instead of tubes that constrict the sound of the drivers.
The Apex IEM
The Air Pressure Exchange (Apex) Core allows a seamless airflow and is fitted through the entire solid aluminium shell. A perforated grill on the elegant brushed aluminium faceplate prevents the obstruction of air for the effortless reproduction of music. This patented vent releases air pressure for better comfort and lesser fatigue while enhancing noise isolation that’s similar to the m15 module.
Pick Any Source Device with LID
The different source amplifier output impedances of smartphones, DAC/Amps, Hi-Res Audio Players and more, can cause the frequency response to vary across devices based on the increase in resistance. A patented Linear Impedance Design (LID) circuit corrects the non-linear electrical resistance of the multiple driver-sets to restore proper interaction with the source device. It preserves the desired sound signature while staying constant and reliable.
Driver Type/Count: 2 precision BA drivers, 1 dynamic driver
Driver Configuration: 1 tia high, 1 high-mid, 1 dynamic mid/low
Frequency Response: 5Hz – 22KHz
Sensitivity: 104db @1kHZ @1mw
Impedance: 5.5 +.5/-1.5 Ω from 10Hz – 20kHz
Crossover: Integrated 3-way passive crossover
Isolation: -15dB internal apex technology
IN THE BOX
Trió Universal In-Ear Monitors
64 Audio Sticker
64 Audio Premium Leather Case
TrueFidelity Eartips (S,M,L)
Silicone Eartips (S,M,L)
48" Detachable Premium Cable
Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form
64 Audio is a leading manufacturer of high-end in-ear monitors for audiophiles, musicians, and professionals. With a focus on innovation and craftsmanship, 64 Audio delivers unparalleled sound quality and precision. Discover their range of custom and universal-fit models at The Audio Store and experience audio like never before. Shop now!
I got the Trio as an upgrade to my ThieAudio Monarch MKIIs. The Trio is a fantastic step up and superb IEM that complements (and trumps) the MMKII. I couldn’t agree more with 64 Audio’s definition of the Trio when they say that it is a perfect balance of analytical reference sound that’s also dynamic, fun, and engaging while being extremely comfortable for long hours of listening (thanks to the compact size and APEX). It presents a sweet spot between reference-level clarity and a smooth sound signature for extended listening. It is a light IEM and extremely well-built. And believe me, APEX makes an enormous difference. It causes almost no fatigue and pressure build-up in my ears and makes the listening experience even more relaxed. The imaging and soundstage are also top-notch as I can hear each individual instrument's sound and where it is playing from on the stage. I am using the Trio paired with my Qudelix 5k and Shanling UA3. My next plan is to upgrade to a balanced cable. On the topic of cables, if there's one thing that I disliked, it is the absence of a Balanced Cable after paying so much. 64 Audio can surely do better for the money they are charging for this IEM.
One more thing- initially I had planned to buy the U12T but after auditioning it, I realized that I prefer a hybrid drivers-based setup instead of an all-BA drivers-based one. Hence, I strongly recommend that you try out various IEMs before paying so much money.
In a collection of many big hitters, I find Trio to be my best IEM. It has the sweet spot between musicality and reference tuning, and the bass is quick and tight.
Holographic soundstage adds to the magic.
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Let customers speak for us
from 5213 reviewsThe soundstage and imaging in games is awesome. I can hear every minute detail
Very detailed sound and wide sound stage
The quality of the product really good and audiostore experience as well
The audio quality was great... And this is the first time I m buying from audio store... It was good experience and it came very faster than i expected !
The resolution of audio has improved drastically due to the balanced cable. The cable makes my Shanling UA2 Plus DAC + Amp to provide more power to the drivers of my Sennheiser HD620S headphones. So, the volume of the headphones has doubled.
The build is solid and the most impressive thing is the flat sound stage.It is recorded to use a portable DAC to get the best sound possible.Not recommended for bass lovers

Good
Very prompt response
It's very good very energetic sound
Audio quality is too good
The fitting and impact of sound quality and comfort is amazing I would love to buy more this kind of eartips
Most convenient

This was a gift for a friend of mine. The shipping took some time but when it reached them it was shipped the same day and after two days it was received. It came in perfect condition. I'll copy my friend's review below:
"This is most balanced IEM with a touch of warmth among everything out there. The Bass is just a bit much and with a 3db high-pass filter it became perfect. It doesn't get much better from this. The soundstage and imaging is decent and competes with +800$ stuff. The tuning, resolution and timbre is one of the best even under 2k. I'm very much in love with them. The comfort is pretty decent. I haven't got tired of them even after long hours."
The audio quality is very crisp and refreshing
The sound just amplified after using this with my kz castor pro IEMs....it is amazing.