I have two 10w3's in a TTB designed enclosure. I know there are several people in here that don't really believe in them (haven't heard), but it really sounds great. Anyways... I am running them off a BXi2006. I want to get something that will benefit from all the power the amp will put out. I am likely gonna get an FI BL or BTL 12" or 15". My question is do you think I can get the same output/soundquality from a single 12 or 15? Please help me decide..