brifro

My Klipsch ifi system with less than 100 hours on it died suddenly. Turn it on and nothing happens. It has never been moved or damaged. I replaced the fuse but it glows white hot and fails immediately when turned on, whether or not the dock is plugged into the sub. The Klipsch service center in Michigan would not let me speak to a technician but assures me the problem is with the amplifier, which they can replace for $105 plus shipping and handling both ways (about $150 or more total). I'd like to do it myself if it's not too complicated but can't find info on the part even on the Klipsch website (the product has been discontinued). Any advice? Thanks very much.