Wolf, I believe the amps from Emo that have had issues are the ones that included a waveform limiter circuit. The MPS-1 was the first to introduce this special little nifty pos circuit. I believe the XPA series also have this nice little wonderful high tech option that will shut down your 80's.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85