basically i was looking at either fi or dc, with originally going with between 1000-1500. i have had good experience with autotek amps in the past and was looking at them, but after doing some research it appears autotek is on par with the sony xplod line. Ive aways heard great things about audioque, and am now looking at the aq 1200, with fi, dc ,or dd. but again i am open to suggestions. im really liking the audioque 1200, i plan on wiring a 1 ohm load, so i need to consider a sub that is obviously able to be wired to a final 1 ohm. So to restate this, looking for loud and low (but i guess i cant get that low with my box at 37 hz) i love the feel of spl, but would love a good daily woofer at the same time, so something in the middle. sql is what im looking for i suppose. Hope this helps a bit.