Double top grade PCM-1792 D/A chip from Texas Instruments   9 Inputs: USB, AES-EBU, optical (Toslink), coax (S/PDIF)   24bit/192kHz asynchronous USB (XMOS technology)   DSD (up to DSD128) capability (DSD over PCM)   I²S interface for CD Box RS (sonic2data transfer technology) with additional clock synchronisation port (BNC)   2 selectable digital filter settings   Fully balanced analogue audio circuitry   Tube output stage & solid-state output stage (switchable)   Ultra linear & ultra low noise circuitry   IR remote control included   XLR & RCA line level output sockets