AudioSource has produced a distinguished line of stereo power amplifiers. AudioSource's amps provide high sound pressure levels, as well as subtle details with accuracy and transparency. You won't find better sounding amps at anywhere near the price. A torodial power transformer keeps stray magnetic fields to a minimum and the discrete output devices ensure pure signal fidelity. Separate channel level controls allow for individual adjustment. A defeatable peak limiter circuit protects speakers form distortion at high volumes and an auto-circuit power up the unit with a preamp signal and powers it down when no signal is present.