Seeing that the M80 is a 4ohm load I don't believe you can bridge those amps with out a problem.When bridging, the amp would be seeing the load on the M80's as a 2ohm load.Such is the case with ervery amp I'seen or read about.Your best bet and safest would be is to Bi amp your M80's Good luck



Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud