64 Audio U12t (2025 Revision) Universal In-Ear Monitor

U12t 2025 Revision

New Look. Same Legendary Sound.

• Raised Metal Logos
  
• New Shell Color & Texture
  
• Chamfered Faceplate Bezel
  
• U12t silver color electroformed stainless steel faceplate chip
• Now comes with all current apex modules and two cables terminated in 3.5mm & 4.4mm. U12t is the first UIEM that will come standard with our Pearl Premium Cable
• Along with the cosmetic changes, U12t is now packaged in a newly designed unboxing experience seen launched with Solo

U12t does it all, delivering immersive sound and impeccable spatial imaging. Its articulate highs extend beautifully with a warm and engaging low-end response - just like its custom counterpart, the A12t.

Offering reference-level detail, this IEM has become one of the most highly regarded and sought after audiophile UIEMs. Each ergonomic shell is machined out of a solid piece of aluminum and finished with an elegant brushed aluminum faceplate.

U12t is the first UIEM that will come standard with our Pearl Premium Cable including both 3.5mm single-ended and one balanced 4.4mm.

Patented Technology

tia

Tubeless In-Ear Audio (tia) is a patented IEM design methodology that aims to reduce unwanted resonance and distortion for a transparent and lifelike sound signature. The tia system is comprised of three major elements: open balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers. U12t features two major elements of the tia system: the tia driver and the tia single-bore design.

Apex

Air Pressure Exchange (Apex) is a patented vent that releases air pressure in a sealed ear canal all while retaining standard IEM levels of isolation; enabling musicians and music enthusiasts to listen more comfortably for longer. This venting alleviates listener fatigue and allows for a much more realistic soundstage. Apex comes in three module variations for U12t: mX, m15 and m20.

LID

Linear Impedance Design (LID) is a patented circuit that corrects the non-linear electrical resistance of the multiple driver-sets comprising this 12 driver IEM. Varying source amplifier output impedance in devices like smartphones, body packs, DAC/amps, and DAPs typically results in varying frequency response across them, depending on the increase in resistance. Restoring proper interaction with the source and preserving the desired sound signature enables a consistent reliable sound.

Specifications

Color
Silver

Material
T6061 Aluminum Shell
Electroformed Stainless Steel Faceplate Chip

Driver Configuration
1 tia High Driver
1 High-Mid Driver
6 Mid Drivers
4 Low Drivers

Frequency Response
10 Hz - 20 kHz

0.78mm 2-Pin Cables
Silver Plated OCC Copper
7 x 7 x 4 Multi-Twist
0.23Ω - 26 AWG - SPC

Sensitivity
108 dB/mW @ 1 kHz

Impedance
12.6 Ω

Apex Isolation
-10db to -20db

Designed, Assembled, and QC’d by highly skilled technicians in the United States using components sourced both domestically and globally from trusted suppliers.

Included

• U12t Universal In-Ear Monitors
• Carry Case
• TrueFidelity Foam Ear Tips (S,M,L)
• SpinFit Silicone Ear Tips (S,M,L)
• Silicone Ear Tips (S,M,L)
• 3.5 mm Silver Premium Cable
• 4.4 mm Silver Cable
• Shirt Clip
• Cleaning Tool
• Cleaning Cloth
• Round Sticker
• Apex Modules (m20, m15, m12, mX)