Teac AI-501DA-S Integrated Amplifier with 192kHz USB Audio Input (Silver) Integrated Class-D Amplifier by ABLETEC, Norway: High-Quality Sound, High Output Power, and Low Power Consumption Fully Digital Path via USB Cable allows 192kHz High-Res Audio Playback BurrBrown PCM5102 D/A Converter for a Variety of Digital Sources Large Capacity Toroidal-Core Power Transformer A Full-Metal Construction and Small Footprint for Any Desktop Set-up