Kranny Posted July 27, 2012 Report Share Posted July 27, 2012 (edited) MAYBE you'll be able to fit 15's. but the port is going to take up 1-1.5cuft of that. plus bracing displacement. plus woofers. plus the extra baffle. you want spl? then tune your box to 55hz and play a milli or 6 foot 7 foot all day long edit: how do you know if the port size is adequate? or that the tuning is to your liking? or that the box is structurally strong? Edited July 27, 2012 by Kranny Quote Link to comment Share on other sites More sharing options...
J R Posted July 27, 2012 Author Report Share Posted July 27, 2012 The number 7.5 is after port displacement, calculated for .75 mdf, and also after the 2, 2x4's I installed for extra support. I checked everything when building the box. It's exactly 7.512 before sub displacement. It's tuned to 31.4hz, I had 2 15 inch Mojo's that were 2500rms each in it and loved it. I just got a great offer on the Mojo's to the point I can get two brand new Fi BL's and have extra cash for wiring. Quote ***2001 GMC 2500HD Regular Cab*** -Jensen 9312 Flip-Out -2 12 inch Pioneer Step-up Shallow Mounts -Kicker ZX750.1 for Lows -Pioneer 6.5 coax in the doors -Pioneer 4x6 coax in the pillars -Old School Alpine MRV-F250 for Mids/Highs ***1969 Camaro Z/28*** -500+ cubic inch 950hp BBC + 400-650 shot of Nitrous -Audio coming soon- Link to comment Share on other sites More sharing options...
Ddub847 Posted July 27, 2012 Report Share Posted July 27, 2012 ohhh i thought it was before any displacement. Quote Link to comment Share on other sites More sharing options...
stevog Posted July 27, 2012 Report Share Posted July 27, 2012 is it 1 kicker 2500 for both subs? Quote Link to comment Share on other sites More sharing options...
Kranny Posted July 27, 2012 Report Share Posted July 27, 2012 you contradicted yourself. so i'll believe that its 7.5 after displacements. i hope you realize that "spl" generally means being as loud as you can at 1 note and 1 note only. no one can tell you which brand will be louder. its impossible. Quote Link to comment Share on other sites More sharing options...
J R Posted July 27, 2012 Author Report Share Posted July 27, 2012 Yes one Kicker zx2500.1 pushing around 3000rms @ 2ohm with my system. The box is 7.512 cube after all displacements BESIDES subs. Now that size depends on which subs I get Quote ***2001 GMC 2500HD Regular Cab*** -Jensen 9312 Flip-Out -2 12 inch Pioneer Step-up Shallow Mounts -Kicker ZX750.1 for Lows -Pioneer 6.5 coax in the doors -Pioneer 4x6 coax in the pillars -Old School Alpine MRV-F250 for Mids/Highs ***1969 Camaro Z/28*** -500+ cubic inch 950hp BBC + 400-650 shot of Nitrous -Audio coming soon- Link to comment Share on other sites More sharing options...
Tujik Posted July 29, 2012 Report Share Posted July 29, 2012 I'm lost.. Enjoyed the reading though.. I was hoping to find out if someone had a biased opinion on the DC's > Fi BL's but unfortunately that never happened.. Lol best of luck either way mate. Quote Link to comment Share on other sites More sharing options...
Born_Again Posted July 29, 2012 Report Share Posted July 29, 2012 I'm lost.. Enjoyed the reading though.. I was hoping to find out if someone had a biased opinion on the DC's > Fi BL's but unfortunately that never happened.. Lol best of luck either way mate. If it's a biased opinion you're after...... Quote Link to comment Share on other sites More sharing options...
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