Hey pab, welcome to the forum. Other forum members use Outlaw products to drive their speakers. Although I don't have any experience with the RR2150, I'd say it should be fine driving your new M80s. Outlaw is not shy with power. Sounds like you have a pretty big listening area. The M80s should work well in there. Enjoy your new speaks.

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"Nothin' up my sleeve. . ." --Bullwinkle J. Moose