Wisdom in mind,   enthusiasm at heart.

Reference-10.32（USB applied USB-32）
Discrete  DAC + Headphone amplifier / Preamplifier

Built in DSP-1 data processor
32bit / 384K Asynchronous Transfer  USB-32 Chip
Built in 4 Pieces Hi-grade PCM1704UK Chips
OCC wires and TCXO built in
　

1, Replace the RCA coaxial by BNC socket:
     The RCA coaxial input sockets can replace by BNC sockets , cost is USD10/per  without shipping delay .
       
2, Custom order two pair RCA outputs:
      If customers don't want ACSS output , replace by RCA output without shipping delay   .

3, Custom order the display dark at around 7 seconds after operated.
     +USD1,without shipping delay.

4, Custom order High Gain model for the HE6 and low sensitivity headphones:
      +USD80 and 2 weeks lead time. If connect with other high sensitivity headphones, may turn few steps volume but had quite loud .