The 64 Audio Trio are triple-driver hybrid earphones. A dynamic driver handles low frequencies and the lower midrange, one balanced armature driver is responsible for mid to high frequencies, and another tia driver handles high frequencies. The 3-channel passive crossover system ensures that the drivers work together harmoniously.
Features:
- 1 x Tia driver for high frequencies
- 1 balanced armature driver for midrange
- Dynamic driver for low frequencies
- Tia, Apex Core, LID technologies
- 3-way passive crossover
- Solid aluminum housing
- Premium 26AWG silver-plated copper cable
The 64 Audio Trio are uncompromising monitors for listeners seeking a balance between studio-grade accuracy and comfortable sound for extended listening sessions. These earphones are perfect for audiophiles looking for honest, soothing sound across all music genres.
The Trio utilizes Frequency Expansion Chamber (FXC) to precisely control the midrange. The volume of air in the dynamic driver with reverse venting is accurately regulated, delivering perfectly positioned mid frequencies for amazingly natural vocals and instruments.
Tia Technology:
The unique design of the drivers and housing without acoustic bores ensures clear and realistic sound. This system reduces unwanted resonance and distortion, allowing the high-frequency tia driver to freely sound in a single large waveguide. The Trio utilizes the full Tia system, allowing its three drivers to freely radiate sound into the Tia aperture without any obstacles for the drivers.
Apex Core Technology:
This technology aims to reduce listener fatigue by decreasing excess air pressure on the ear canal. This ventilation allows musicians and music lovers to use the earphones comfortably for longer periods. Integrated into the earphones' housing, Apex provides the same pressure relief and isolation as the m15 module, resulting in easier music playback and minimal physical fatigue.
LID Technology:
The Linear Impedance Design (LID) corrects the non-linear electrical resistance of the driver group in the Trio. Changes in the amplifier source's output impedance, such as smartphones, portable devices, DAC/amplifiers, and DAP modules, usually lead to variations in their frequency responses based on the resistance increase. Maintaining proper interaction with the source and preserving the desired sound characteristics ensures stable and reliable sound reproduction.
Each ergonomic Trio housing is handcrafted from solid aluminum. The internal compartments are precisely milled to accommodate the driver units and shape their sound. Its understated neutral color palette is complemented by an elegant matte aluminum faceplate.
Package includes:
- Earphones
- 3.5mm cable
- TrueFidelity foam tips (S, M, L)
- SpinFit tips (S, M, L)
- Silicone tips (S, M, L)
- Premium leather case
- Cleaning brush
- Manual

































































