Using the flagship DAC ESS9018Q2M, with ultra-low distortion, ultra-low noise OPA1612 high class amp chip, makes the sound stage broad. In order to seek excellent sound performance, X20 uses 4-way LPF circuit, 6-way amp circuit design, 4 balanced output, 2 single-ended output, the maximum output of each drive current, is up to 140mA, greatly improved the output signal dynamic range, high-quality music playback, enjoy to more delicate dynamic voice and the surging bass energy. X20 not only goes further on the tuning, but also comprehensively upgraded the functions and playability: hard solution DSD256, Hiby Link connection, bi-directional Bluetooth transmission, bi-directional USB transmission, balanced headphone port output, all kinds of interfaces are prepared for you to enjoy music anytime, anywhere.