I have this powered subwoofer, a Cerwin Vega CLSC 12S. It is either off, or in the auto off/on mode. The thresh hold of the bass signal seems to be too high in the amp to keep the amp on. So I assume this signal detector detects the bass signal level and closes a switch to power on the amp. 120 volts I would presume. If I could find this switch, I'd like to jumper across it to keep the amp on all the time. I just bought a new sub that has a constant on feature, so this older Cerwin Vega is just sitting unused and would not kill me to modify it. Can this be done and is this a good idea? Thanks for all input.