I'm curious if any of the processing modes -- "concert hall", "jazz", etc -- on modern AVR's mitigate the effect some have observed of poorly-recorded CD's sounding bad on M80's. I wonder if there's perhaps extraneous high-frequency information on such that lesser speakers simply aren't putting out.

If the first two Scorpions albums (which were recorded badly) don't sound good on M80's, I'd be very sad.