hey, first post here at HTF and dang I love reading all of these posts. they make me drool. I was looking to build my own sub because it seems [after reading all these posts] that a diy will beat out most commercial subs for the money [if done right] and I want my house to shake. I have a b&k Ref 50 and matching 200.7 amp with 2 [l/r] B&W nautalis 802's, 4 805's, and the htm2 center. the dealer recomended [of course] the b&w sub but as I stated above, I want the best. Ive talked with a cab maker and he can match the stain on my speakers, so the next ? is, what driver and how big of a box? I dont have to agree to any WAF [never ever heard of this anywhere] because the basement is my baby, she gets the master bed/bath so is there only one ultimate solution?