I received an old Onkyo HT R380 with a faulty AVR from a relative. The avr powers on but no sound is output from the speakers. Will it be worth getting it fixed? Or can I replace the AVR with a stereo amp of some kind or any other patchwork solution to make it workable(assuming the speakers aren't faulty lol)? Just wanted to get your opinion (before my wife makes me throw it away)