2 channel amplifier was tested both channels when testing had low volume 

Serial Number S10 10699

THE Integral Systems Model 200 stereo power amplifier is rated at 100 watts per channel into 8 -ohm loads. Although its continuous 4 -ohm power rating is also 100 watts (determined by power -supply considerations), the shortterm output is about 150 watts per channel. The Model 200 is relatively compact and light in weight for an amplifier of its power, but its large heat -sink area enables it to operate at safe temperatures even when both channels are driven to full power for up to 15 minutes.

Selling AS-IS for parts or Repair