I've looked into this in my previous thread. Someone mentioned the Soundstream TN1.1200D and the Kicker 750.1. There's a few 750.1's on ebay (the 06' version) and the TN1 I found for about 200 bucks.
The TN1 only accepts 8 guage max for the power wire, and is rated at 1050W rms @ 2 ohms. Is that a reliable spec? I only have 4 guage wire, Could i just trim around it and stick it into the terminal of the amp if I got the TN1? It seems weird that it can output 1kw and only use 8 guage wire.