Yeah thats what I was thinking...that 100 isnt going to make enough difference to be worth the cost and extra equipment. And its not so much peak loudness im after...dont get me wrong it gets loud...I just hate having to turn the volume up almost all the way. I also feel that can add in distortion and also that with more power I would get more mid bass punch at lower volumes. I think the 55w im getting will suffice in most cases...I may try more for the outdoor sections. I was going to do a A/B testing when I get some time with these m3s hooked to my denon receiver. I have the un powered sonos boxed hooked to that so I can run one m3 off the denon and one off the powered sonos box and can get one playing at 55w and one at 140w (I think)playing the exact same thing at the same time.