IMHO, Audiobahns Alum series (10 and 12Q) dont get the credit they deserve. They have very nice sq while being able to get loud. It concerns me when people give more effort into making one brand of sub sound better than another. Example, take someone who has a XXX, builds a box, sub sounds like crap. People will say, try this box, build another one , two, or three. Take another person that has maybe Audiobahn or Sony. They build a box, sounds like crap. People say those brands are crap, buy new subs. Thats not fair. Isnt part of this hobby trying to make something, no matter what it is sound the best we can (within reason of course)? Are we just selecting subs/brands that are more forgiving to our lack of install quality? People need to think about that.