Balanced 2x AKM AK4377A
The BTR3K's Bluetooth chip is accompanied by a duo of AKM AK4377A DAC chips, offering very good sound performance, with an extremely low distortion level of -107dB and a high signal-to-noise ratio of 122dB.
These two chips are integrated in balanced mode and each dedicates all of its computing power to its own channel. In addition to compatibility with balanced headphones, this type of design significantly increases performance in terms of crosstalk (118dB on its balanced output).
This chip also acts as a headphone amplifier delivering 25mW under 32 Ohm oni ts single-ended output and 78mW under 32Ohm on its balanced output.