64 Audio A12t > 12 Driver (1964 Ears) > Acustoms
Custom In Ear Monitors - we work with the best brands in the world: 1964 Ears, JH Audio, Inspire Audio, Unique Melody, Westone, we got you covered!
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64 Audio A12t

Twelve driver custom.

64 Audi Audio A12t

The 64 AUDIO A12t Custom In-Ear Monitors with patent-pending tia™ technology are the ultimate monitors for professional stage, in the studio, and the most demanding audiophile applications; it features 4 low drivers, 6 mid drivers, and the incredibly smooth tia high and high-mid drivers. In the tia single-bore, sound from the low and mid drivers blends with amazingly-detailed highs from the proprietary open balanced armature tia high driver. The lower-mids have been refined while the familiar low-frequency response remains intact, providing the warm and inspiring sound of the A12 legacy.


Features include the patent-pending apex™ technology that relieves air pressure for fatigue-free listening and a protective mesh cover at the end of the sound port for easy maintenance and improved resistance to debris. Apex modules are removable, allowing you to customize the isolation level and sound flavors to provide a personalized listening experience that simply cannot be achieved by traditional Custom IEMs. While there are other 12-driver products on the market, nothing comes close to the transparency, agility, and power of the A12t with tia technology.

Frequency Response - 10Hz to 20kHz

Driver Type - 12BA

Crossover - Three-way

Impedance - 16 Ohms at 1kHz

Configuration 4xHigh – 4xMid – 4xLow

Bores - Quad

Sensitivity - 116 dB SPL/mW at 1kHz

-6 to -26dB

30 day fit guarantee + 2 year warranty



The 64 Audio A12t will reveal undiscovered layers of sounds that you couldn’t hear with conventional IEM’s. While there are other 12-driver products on the market, nothing comes close to the transparency, agility and power of the A12. This product is ideal for studio or stage musicians and the most discerning audiophiles.








—64 Audio Personalized Protective Case
—48 or 64” Detachable Cable
—Cleaning Tool
—Shirt Clip
—Round Sticker
—ADEL Auto Module

Currently starting at $2899