Advanced Ultra-High Current (UHC)-MOS single push-pull circuit delivering 2 x 140W (4 Ohm). Includes DAC mode with isolation, USB-B, 2 optical and 1 coaxial digital input, DSD up to 5.6 MHz, Advanced AL32 Processing Plus, high dynamic D/A converter PCM1795, DAC master clock design, direct mechanical ground construction, and leakage-cancelling twin transformers.