... and play and support USB 16bit B. Coaxial and optical 24BIT/192K ,24bit/192K music playback C,Modular headphone- ... chip software control , coaxial and optical fiber to 24bit /192 K D. Add the optical input interface E. Add the ... headphone –amp ,pre-ampInput SIF×1 USB(1.0)×1 OPTICAL×1 , Analog RCA *1 Output Output terminal , Analog RCA ... DAC& Headphone AMP & Preamp HIFI AMP COAXIAL/OPTICAL MINI DAC USB