Hey rocky1313, don’t listen to stereo5, he doesn’t know what he is talking about. Your amps have gone bad, because they have design flaws. They could have not been absurd in the least bit and the amps will still go out. Also, running the speakers without the sub causes ZERO problems with impedance. They are not wired together, so feel free to run them without the subs as much as you like. If you still have them, I do repair these amps if you’re interested. If not interested in having them repaired, I would be interested in buying the bad amps off of you. Just lmk, thanks!