Here are some of the great features of Matrix M-Stage Headphone Amplifier USB

Matrix M-Stage Headphone, Introduction The M-stage is a fairly basic headphone amp. It features 2 sets of RCA inputs on the rear, which are selectable via a switch on the front panel. It also has a line out which enables the unit to be used as a pre-amp. Aside from the input selection switch, the front panel features a single 1/4" headphone jack and a volume control knob. A power switch is located on the rear, just next to the IEC power cable receptacle. It really is a very simple design. The only somewhat unique feature is the pair of gain selectors on the bottom. Users can easily switch from 0, 10, 18, or 20 dB of gain, independent for each channel, with the simple flip of a few dip switches. Features · New 2011 version with upgraded newly designed casing and USB input module · USB input module is based on TAS1020B and PCM1793 which provides 24 bit / 96 KHz high quality DA conversion · Powerful output that can drive high impedance headphones (up to 600 ?) · High quality components including ALPS VR, Nichicon caps, OPA2134 Op-Amps, etc · 2 sets of line inputs selectable on the front panel · Can be used as a pre-amp with the line output on the back panel · Gain selectors can set 0, 10, 18 and 20 dB gains · Solid build with aluminum faceplate and steel case · Fully dynamic and well balanced sound on a dead quiet background