Some yamahas do not handle 4ohm loads very well. There is no such issue with the 3808 or Denon receivers in general. You've got plenty of power unless you play highly dynamic music VERY loudly in a huge room.

My 100w Sherwood has no trouble pushing my M80s up into 95db territory (plenty loud for me). I am usually listening at between 75 and 85 db and the receiver barely gets warm.

Fred

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Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!