Denon PMA2000IVR Stereo Integrated Amplifier 80 watts x 2 channels into 8 ohms (20-20,000 Hz) at 0.07% THD - or 160 watts x 2 into 4 ohms Ultra-high-current MOS single push-pull circuitry Heavily shielded, 6-block chassis design Advanced anti-resonant construction Twin transformers with leakage-canceling mount