I'm about half finished with some extensive testing to solve a heat issue on my Outlaw 770. Using 20 minutes of a CD and with a Fluke Mulitimeter 83 taking voltage readings on the 5 M80's and the QS8's, so far seeing interesting useage of watts per speaker for average and peaks. Will post the info if enough are interested...and I have proved my therory as to what the problem is with the 770 I think, will see if the tech agrees with me tomorrow.