... Coaxial and optical 24BIT/192K ,24bit/192K music playback C,Modular headphone-amp design , OP+BUF framework D,Aluminum chassis with vertical ... 1MM particularly porous used for LED , let the displaymore friendly . C. Single chip software control , coaxial and optical fiber to 24bit ... , the device can be used as a pure pre-amp F. Touch button control design , easy operation and display , embedded ...