I don't know enough about ohms to say whether or not M80's dip to 2 or even 1 ohm during musical/theatrical playback. But one thing I have noticed is that most of the problems that we here on the board have heard about seem to come from the M80's, not from other speakers like the M60's. And from what I've seen on their forum and other forums is that they do fine with most other 4 ohm speakers as well.
So the question is, what else could it be? If they have protection circutry installed to shut it down in the event of a power spike (which would occur if a speakers impedance did dip down to 1 or 2 ohms), and that isn't that case with the M80's... then which characteristic of the M80's would trigger the shutdown?
