Music Hall 25.3 digital to analog converter - Silver usb input accepts 24bit/96kHz signal, electro-harmonix 6922 tube single-ended (rca) output, solid-state differential balanced output ti PCM 1796 24bit/192kHz DAC, ti SRC 4192 asynchronous sample rate converter, high precision active crystal oscillator master clock user selectable 96kHz or 192kHz upsampling, asynchronous reclocking and anti jitter control system, 8 x oversampling digital filter 4 digital inputs: coax (s/pdif), optical, XLR (AES/EBU), or USB, 2 gold plated outputs; single ended (RCA), balanced (XLR), headphone output with adjustable analog volume control large high current oversize r-core power transformer, thick brushed aluminum fascia and solid chassis, 110v/220v voltage selectable transformer, detachable power cord