Weirdness with Moon Evolution 870A amp overheating on one channel with G2s

[Art Vandelay]

OK, so it's definitely not a straight forward or run of the mill problem.

However, I'm still inclined to believe that the amplifier doesn't like the load and is self-oscillating. If you owned an oscilloscope it would be easy to see such a problem of course.

The only other thing that I can think of is that one of those speaker cables is routed differently. Perhaps the offending cable is routed in close proximity to another cable or cables that might be radiating some EMI?

What's confusing also is that Moon amps are not known to be load sensitive, as the low feedback design makes them largely immune.