Well got the rockford 1001bd i ordered today and wired it up to my 12" L7. It is so much more powerful than the mtx801d i had before. 3000 watts max power at 2 ohms. 1000rms. Class d......can you say lol But like i said it absolutely destroys my sub if i turn it up louder. At this point i'm just thinking about the idea but i may sell the kicker for something more high end. Its loud but not very accurate. Does rockford make really good subs or are these alpine r's i keep hearing about some of the best things available? Keep in mind i have 1000watts rms. I want at least the same oomph as my kicker and better SQ. Kicker is only in 1.4 cu ft too. I really like the idea of 2 subs but would probably need another amp. I also only have one output for one sub on the amp. So subs would have to be in same box. How bout DVC POWER hx2? or 15" power t1?