More on Amazon.com : http://www.amazon.com/gp/product/B002NZV7X4?tag=purrfectcatdi-20 <br /> <br />Music Hall DAC 25.3 USB Digital Audio Converter <br /> <br />Electro-Harmonix 6922 tube output 8x oversampling digital filter and <br />Ti SRC4192 Asynchronous sample rate converter whigh precision active crystal oscillator master clock <br />Sophisticated asynchronous re-clocking and anti-jitter control system <br />4 digital inputs coax SPDIF optical XLR or USB and Headphone output with adjustable volume control <br />110v220v voltage selectable transformer and detachable power cord
