... /192K ,24bit/192K music playback C,Modular headphone-amp design , OP+BUF framework D,Aluminum chassis with vertical and horizontal display ... G,Multi-point MCU and dual LED control, with upgrade interface H .Synchronous switching three kinds of audio inputs and one ... fiber to 24bit /192 K D. Add the optical input interface E. Add the pure pre-amp function , the device can ...