find out if you need it a 1 or 4 ohms because the unless you find an amp with a switching Power supply, buying an amp that produces 1000 watts @ 4ohms will cost a lot more than an amp the produces the same amount @ 1ohm.
my brother is a distributor for dd amps amd they have never let me down but the m1 seems like it would be the amp for you aarond.efiregate.net ask for ryan and he caan tell you more about them. i have the z 1's and i hit a constant 156db allday on street beat.
diymobileaudio.com is the DIY car audio install forum for automotive quality and spl stereo bass. 12 volt audio installation wholesalers buy amps, subs, double din car audio head unit electronics and ipod blue tooth car alarms at discounted prices