This is my new (as of a few months ago) American Bass TNT 15" in my home-made 6 cubic feet box tuned to 28hz (I learned the tuning after I built it lol). What do you think? It was my first build so go easy on me... It's running off of a Rockford Fosgate R1200.1D. I'd wager it gets well above 140db with the roof and the door panels flexing. I even got the steering wheel shaking pretty good in the really low frequencies lol. I have since pointed it towards the back and it seems to have gotten a bit louder with the addition of the entire hatch flexing now..
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