Natural Sound Stereo Amplifier. Normal/Hi/Lo filters, bass, treble, balance, tape, monitor, headphones jack. Speaker switches - A, B, C, A+B, A+C. Inputs - Aux 1, 2, tuner, phono 1, 2, mic. Low use, nice face & cabinet. All maintenance performed. Modified to defeat internal Class A switch, which is a weak design problem that must be corrected. #8+ condition.