I am looking for the best SQ sub out there. IT needs to be able to get up and play around pretty loud. Not sure on numbers but i would guess aroud 120db??? Anyways I have Q series MB Quarts up front and Premium series in the back. The car is a 95 BMW M3. Alpine Head unit (new one blue lights). I also have 3 10W0's in a pre fab box in the back. They put out plenty of bass (can anyone guess what i am hitting, im not sure) but they are plenty loud, they however are not clean enough and don't get down low enough (thats why i am looking at a larger sub ie 12"). Thanks in advance!!