Because I absolutely **** at building boxes, I went to my local place for them to build a ported box to hold my two Interfire IFB-15D's. They're 600RMS each and call for 2 cubic feet for each sub and if you go ported, the sheet says a 2" W and 8"H port for a SINGLE sub. The box they made has 4 cubic feet but only that 2" W and 8" H port. Why such a small port? When you have a spec for a single sub, wouldn't you double that when you have two subs? The results of the sub are excellent response in higher lows, but sloppy ( SLOPPY ) performance on lows.
I know it has to be the box because my girl friend has a similar enclosure for her two audiobahns ( I tried to pursuade her away ) but surprisingly they're louder!
Could the one small port be limiting the subs in my car? I'm just upset that such ****** speakers as the audiobahns could be hitting louder than my car. And she bought her audijunks for new online for 90 bucks for the pair :<