The third generation of the X7s which adopts class-A biasing design, and has both single-ended and balanced output. With the high sound quality and great power and compatibility to drive most headphones and earphones, it is a high-performance headphones amplifier.

Slightly bigger than a CD, the X7s 2021 can be placed in various listening environments. It can also work as a pre-amp. With the X7s 2021, a desktop HiFi system building is easy. Eight pieces of BJT, four independent amp circuits, positive and negative power supply ... X7s 2021 aims to extract full potential of the headphones. The special class-A amplification gives the sound a bit of warmth and richness. Touch the notes, and be touched. After four PCB optimizations, the actual measurement of frequency response (20-80k) reaches +-0,3dB, THD+N reaches 0,0002%. Broad soundstage, dark background, abundant details.