so basicly you are saying that my 80's are drawing too much power from my thx select tx-ds787 receiver and setting off the auto protect.right?you also stated that my receiver is marketed for a cheaper or less performance speaker other than the m-80's,is this also correct.so for these reasons my onkyo cannot handle the m80's.this I all agree with and have stated in the past posts is what should be told to people right off the bat.in basic the m80's require more power than what my receiver can handle,a thousand dollar receiver can't handle these speakers? its not the power output required but the power consumption. so in you're opinion what would have been a better choice for this type of receiver and why?