This is a McIntosh MC2120 stereo power amp. It is in perfect working condition, and has been recently serviced by a McIntosh factory certified technician. The amp has a few scratches here and there, but is in very good shape for it's age. It has gain controls on the front for headphones, or plugging a source directly into it. It provides 2, 4, 8, and 16 ohm taps to match virtually any speaker! Mac amps are conservatively rated as well, it has a minimum of 120WPC with both channels driven at ANY of the listed impedances, and 240 in mono. It also has power guard, which prevents clipping, and makes this a very tough amp. The unit comes with original manual, service receipt, and has service tags on the back from previous Mac factory service.