I have 2 Kicker CVR 10's in a sealed box right now. The box manufacturer said it was 0.85ft3 for each sub. In actuallity, the box is one big 1.7ft3 sealed box. I have a rf amp giving each sub between 350-375 watts. I am thinking about porting the box. Should I use one port for the whole box, or 2 for each side/sub? I would like to tune it to 30hz and run either 2" or 4" round ports. I played around with some formulas, and came up with the numbers below:
1-2" port=4.1" length
2-2" ports=9.6" length
1-4" port=8.14" length
2-4" ports=19.214" length
Would 2" or 4" port/ports sound or perform better? Would any of these set-ups be louder or sound better than the sealed box I have now? I would rather have SQ over SPL.