I own a pair of the GR Research H Frame 2x12 OB Subs. I never had wonderful bass in my room and these dont seems to be great either. I am suspecting it is my room. I am interested in building an existing proven design that is know to work well. I would like to stay with 12 inch woofers (2 is good). I have all kinds of amps so I am not worried about that end of it. I'll buy what I need and money is not s much an issue. Recommendations?
