With a three-stage inverted Darlington amplifier and great care taken in damping vibration, the Onkyo M-80 power amplifier drives large speakers powerfully and delivers dynamic full-range sound that will captivate and move you. + Engineered for ultimate distortion-less sound with hi-fi inputs and modern streaming and control features, the Onkyo P-80 Network Preamplifier is fully equipped to deliver a sublime audio experience through your amplifier and onto your ears.