A good way to get the bass pumping for cheap is to go to used audio stores. At this place up by me, I got a 600 watt amp for $65 and the guy even hooked it up for me. I've had it for over a year with no problems. At one point, I had my friends two 12s hooked up to it and the was freakin loud as hell. It was shaking the hair off the back of my neck. For now I just have a sh!tty 10 but it still hits. O wait i kinda went off track. lol Anyway, just look for a used audio store they usually hook it up fatt.

I have an US Acoustics amp and it'* sweet. It'* rated at 450 WRMS, and I am running two pioneer twelves on it. That amp puts out what it'* rated at or more. I don't even think the gain is more than half way on it.. and it pushes the subs great!