Ok so here's the deal: Hartke HA3500 (Old Version) + (2) 15" cabs with Eminence 3015LF. I always ran both cabs, so each was getting 175 @ 4 Ohms - the stack resides in my living room and for some odd reason I decided to put one of the Cabs away and just run 1. That's 250w @ 8 ohms and what the speaker is designed for. I ended up cooking the speaker by accident when I had friends over playing with me. Sounded like it Clipped 2 times and then no noise. No smoke, bad smell, etc. I let it rest an hour, tried again - nothing. So I switched to the other cab and played no problem. Fast forward a month and I was going to pull the speaker and order a replacement. I hooked it back up one more time before I dropped $225 on a replacement - back at the [email protected] just like before - and it works fine! I hooked them both back up, played a while and no problems. So tell me - what happened? Is this some form of electronic witchcraft or what?