I know I am resurrecting an thread but did you ever decide on some subs? Music is created by artist. Each and every one different. Most then have producers that mix and remaster and then mass reproduce and sale. We then all have individual tastes on what we THINK we like. On top of all of that we then factor in cost, availablity, install, and looks. I know to one who loves to build and uunderstand the sceince of all it is hard to understand but that is the way it is.
My two cents is 2 Pioneer champion spl 3004D4 12" Huge SPL with decent SQ.
Oh ya and this is a grand prix forum so most of us have GP's and we talk specifically about install and placement in a GP.