I've never heard them in person, but, from everything I've seen on this site... I'd go with Fi Btl's if they are in the price range, by the way, what was your price range?
mostly spl but i still want it to sound good. I've been lookin at the 15" FI BTl with all options. I think this thing would be a monster. Maybe two 12s of this model but then I'd also have to get another amp to power these beasts