Originally Posted by shock6906

I hit 145.3 @ 42hz with two Crossfire BMF 12's in a generic sealed box. They were being powered by a Crossfire VR1000d amplifier. It's not the loudest setup on earth, but I can't see a reason for going any louder unless you're competing. If you get a set of nice subs, you'll be more than impessed with how deep they sound even in a sealed box. F-bodies are great for subwoofers.