... also works as a stand-alone AMP, DAC, or USB soundcard. Also, the D12 has a new pulverization finish and ... for OPAMP rolling.Main Features:- PCM2906B, converts USB into a S/PDIF signal- CS8416, DA-receiver chip - Dual ... inputs, line out, and stereo output- Works as a combo or a stand-alone AMP, DAC, USB soundcard- Built-in ... up to 30 hours (30 hrs for AMP, or 18hrs for combo)- Measures 55*24*103mm, and ...