You wont be disappointed by a kenwood amp. They put out what they say they put out.
All i'm saying is unless you're going for a 100% sq setup, you can get a lot more bang for your buck from another company.
I was gonna go all kenwood, but couldn't snatch a xxv-03a in time before they got discontinued, but now that i actually pulled my head out of my a$$ and looked around, there's so much more out there for the $$.
I've owned a lanzar opti2000d, and it was a terror. I had it hooked up to two 12" L5's and smoked those coils in no time. No clipping, just straight coil burn.
This time around, i'm giving the 2006 hifonics a go. From what i hear, they put out a bit less than rated power, and not 100% reliable, but from my experience no car electronics can be 100% reliable, mostly due to the environments they're subjected to on a day to day basis, and if i buy a 2000 watt amp, and get 1600 watts, i'm not gonna complain for less than $400 shipped.
Good luck.