Teac UD-301-BK Dual Monaural Digital-to-Analog Converter with USB, Black 2.8MHz/5.6MHz DSD native playback (via USB input) 24bit/192kHz PCM file playback ; Distortion - 0.0015%(1kHz, in the case of 192kHz sampling frequency 192kHz up-conversion option (with On/Off selection) 2 x Burr Brown PCM1795 digital-to-analog converters Headphone output (standard stereo jack)