I think if there is an id**t, then it is you ,pp. This guy is asking for help, if you cant be constructive then keep your snide remarks to yourself.
Re the silent amp Michael. it could be anything from fuse to a blown speaker or circuit board .... it's impossible to give you positive help here, you need to get an electronics expert to check it out for you.
H H Electronics & Stage Gear, August 2007