I've got a Yamaha EX-660 powered (300w main, 300w monitor) mixer with a pair of Yamaha 12" floor monitors that are rated at 300w ea. http://www.musiciansfriend.com/pro-audio/yamaha-a12m-12-2-way-floor-monitor Our budget is a little tight so I'm thinking about buy a couple of these Kustom floor monitors and moving the Yamaha's to "house" side and picking up a set of these for floor monitors - fits a little better with our budget. I'm pretty sure they are rated at 100w. http://www.guitarcenter.com/Kustom-KPC12M-12IN-Monitor-Speaker-Cab-with-Horn-Pair-600552-i1322339.gc Anyone had any experieince with these, thoughts? We are a 5 - 6 piece classisc rock, R&B with 2-3 vocals at any time.