detroitdb Posted July 18, 2014 Report Share Posted July 18, 2014 It's been a while since I've been on here. New job just killing me. Any ways I built a beautiful 4th order for 2 dc audio level 4s twelves, I finally obtained a term lab to test with, I was wondering if my port length is to long. It plays all the frequencies, 20-55 ish.pulling mid 140s I was wondering if I shortened the port will it play stronger. The port I believe is 12 x12 x 18 there are pics in my build log.also I designed this enclosure using bbp6. .thanks https://photos.google.com/photo/AF1QipP7rjav9cD9UFdAYBJmz4M4LoNlF26ng1xhAf4Uhttps://photos.google.com/photo/AF1QipP7rjav9cD9UFdAYBJmz4M4LoNlF26ng1xhAf4U 2013 DODGE CHALLENGER R/T SUNDOWN ZV4-18 CRESCENDO 3.5K PIONEER AVIC 5300 NEX ALPINE TYPE R 6.5S & 6X9'S ROCKFORD FOSGATE 1.5" TWEETS 5 C&D TECH BATTS Link to comment Share on other sites More sharing options...
khinds94 Posted July 18, 2014 Report Share Posted July 18, 2014 Shortening should raise the tuning and give you a higher score however you may lose some on the lower end. 03 Sable LS AA mayhem 12" D2 Sundown ZV4 12" D1 Tantric HD 12" D2 Tantric SHD 12" D1 Sundown X12 V2 D2 2.5 cu net Sundown 2000d @ 1 ohm XS Power XP2000 Sky High Sound Deadener Sky High wire Stock alt Link to comment Share on other sites More sharing options...
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