64 Audio A6t Custom are custom in-ear monitors for performing musicians and discerning music lovers. The A6t Custom offer detailed highs, smooth mids, clear lower mids, and deep lows.
Features:
- 1 x Tia driver for highs;
- 1 balanced armature driver for mid-highs;
- 2 x balanced armature drivers for mids;
- 2 x balanced armature drivers for lows;
- Tia, ApexCore, LID technologies;
- 3D printed solid acrylic shell;
- 6-channel passive crossover;
- interchangeable Apex filters;
- unique materials.
The A6t Custom in-ear monitors are custom earphones with six drivers. Designed using the full system incorporating Tia, Apex, 3D Fit, and LID technologies, the A6t presents 64 Audio's signature balanced sound in a completely new way. The simple design of the earphones immerses the listener in the experience of live music, almost forgetting they are wearing IEMs.
Tia Technology
The special design of the drivers and shell without acoustic sound tubes provides transparent and realistic sound. The system reduces unwanted resonance and distortion, allowing the high-frequency Tia driver to freely sound within one large sound tube. The U6t Custom are equipped with two key elements of the Tia system: the Tia driver and single-bore construction.
Apex Technology
This technology aims to reduce listener fatigue by decreasing excessive air pressure in the ear canal. This ventilation allows musicians and music lovers to use the earphones comfortably for longer periods.
The freely moving air expands the soundstage and provides more natural sound. It also preserves bass frequencies and helps the listener distinguish individual instruments. The Apex module is available in three variants: mX, m15 (-15 dB), and m20 (-20 dB).
LID Technology
By adjusting the non-linear impedances of the drivers, LID ensures the proper interaction with different sources. Whether you are a musician connecting to various devices at different concerts or studios, or an audiophile listening from low-impedance sources, LID guarantees that your IEMs will sound consistently high-quality.
3D Printing and Hand Assembly
The main shell is printed on a modern 3D printer using hypoallergenic solid acrylic. The colors and materials used in 64 Audio products are specifically selected for durability. These materials also allow digitally applied images to maintain detail.
Once the shell is printed, the production team assembles the remaining components by hand. All custom earphones are tuned and assembled manually based on your unique impressions. Wearing specially fitted earphones helps isolate external noise and provides more comfortable listening compared to most universal earphones.
Package includes:
- Earphones;
- mX, m15, m20 Apex modules;
- Cable;
- Storage case;
- Cleaning brush;
- Cable clip;
- Manual.




















































