I just upgraded my Kicker HLCD 6pack to a pair of WS Rev10's. I have them powered by a pair of PPI Phantom P600.2 amps. They're giving 600w bridged at 14.4v @ 4 ohms (400w RMS at 12v). So each REV410 is getting what they want and then some. I went out yesterday with it and it rocked my socks off. WOW. That said MLA told me that I need a 'proper amp' for my rev410s. I'll see the reasoning soon enough. Gotta love Wakeworld (of course he's posting on this thread too. No disrespect to MLA, he knows his stuff and I'm sure really believes in the quality differential from the brand names vs these new value amps... I'm sure time will tell.)