Thanks for your reply. I would normally agree with what you said. I can see that happening really easily. Thought it wouldn't explain how it reliably resets itself after I pull the subs plug for 10-15 min. Seems more like there's an electronics glitch that gets reset once the capacitors in the amp exhaust their charge. A loose connection just wouldn't reliably start working after a short time unplugged.
It's happened about 5-6 times and usually when I rearranging things. It would be interesting to hear if someone has seen something similar and what the root cause was.
