I have this amplifier that has the capability to hook up numerous speakers. I tested it with a Sony Tuner that is fully functional and connected equally healthy speakers (2 ea.). Yet, when turning up the volume to a normal level, the amplifier doesn't respond to the dial. It stays at a level that one might hear in a doctor's office waiting room. It doesn't matter whether the tuner is replaced by a tv for testing, the low volume level governs the test result as a 'fail' right from the beginning. The fuse under the cap looks fine. I have seen this amplifier operate up to 8 speakers without even a struggle and the performance was staggering. It was a dvd and I felt I was at a cinema. Tons of high end/chair shaking bass. The Serial Number for unit is 806203. Lastly, I thank you in advance for any guidance on this.

Candice Grant, April 2011

check the back of the amp where you would connect if you had an equalizer and play with the 2 small u connectors and see if that helps. that happened to mines, one channel was good while the other channel sounded as you explained as if in a doctors office.

Alex, May 2011