Mike Gibbens Matthew Posted December 28, 2014 Report Posted December 28, 2014 First box design, looking for input. 2 12" Digital Design Redline 700 series 12's (1200 rms each) 1 fosgate T2500bdcp or DD M3a (have not decided which to use yet, own both) Trunk build sub\port forward sealed off from trunk 2007 Kia Spectra Looking for a nice balance to compete and daily drive http:// image url upload 07 KIA Spectra 320a Singer Alt Odyssey Extreme batteries 2 12" Phantom sounds (4.6 cu. net @ 32) - soon to be 2 Atomic ELE 2 Rockford Fosgate T2500bd-CP Zapco Z150.2 Front comps soon to be Hertz HSK Pioneer 80prs Second skin deadener throughout
afrakes Posted December 28, 2014 Report Posted December 28, 2014 You only have 12" of port for 2x12s? Not enough. I'd double it. Maybe more, unless u want an extremely peaky box. Vehicle: 2014 GMC Sierra 2500HD WT Head Unit: Pioneer DEH- Mids/Highs: Focal Integration ISC 165’s (front) Subs/Amps: TBD
Mike Gibbens Matthew Posted December 28, 2014 Author Report Posted December 28, 2014 aero ports dude. 07 KIA Spectra 320a Singer Alt Odyssey Extreme batteries 2 12" Phantom sounds (4.6 cu. net @ 32) - soon to be 2 Atomic ELE 2 Rockford Fosgate T2500bd-CP Zapco Z150.2 Front comps soon to be Hertz HSK Pioneer 80prs Second skin deadener throughout
Triticum Agricolam Posted December 28, 2014 Report Posted December 28, 2014 You need more port area, 36 sq in is not enough regardless if they are aero ports or not. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds:
Mike Gibbens Matthew Posted December 28, 2014 Author Report Posted December 28, 2014 how about 50 sq in 07 KIA Spectra 320a Singer Alt Odyssey Extreme batteries 2 12" Phantom sounds (4.6 cu. net @ 32) - soon to be 2 Atomic ELE 2 Rockford Fosgate T2500bd-CP Zapco Z150.2 Front comps soon to be Hertz HSK Pioneer 80prs Second skin deadener throughout
islandpride684 Posted December 28, 2014 Report Posted December 28, 2014 http://www.ddaudio.com/support/dd-box Build Log http://www.stevemeadedesigns.com/board/topic/186921-blk9te-07-yukon-slo-mo-build/page-3?hl=%2Bblk9te#entry2881410
Cj Kumz Posted December 28, 2014 Report Posted December 28, 2014 I think the lowest I would go is a single 6" port per sub and that's on the lower side. Around 33 sq inches of port area should be ok per sub Vw Polo Pioneer Deh-6050UB Sundown Saz-3500d DD Audio 9500 15'' 5.5 cubic feet box with 10 inch port @ 38hz I live to hear the Bass drop!!!
KenSchoen Posted December 28, 2014 Report Posted December 28, 2014 I thought required port area was based on box size rather than the sub?
CleanSierra Posted December 28, 2014 Report Posted December 28, 2014 I thought required port area was based on box size rather than the sub? Nope, it's based on Xmax, desired tuning frequency and cone area. Port area has nothing to do with box size. 2 12s in a 4 cube box need the same amount of port AREA, as 2 12s in a 5 cube box. Im not the one you want to try to troll. Just a fyi for you.
rockFord_Expedition Posted December 28, 2014 Report Posted December 28, 2014 I thought required port area was based on box size rather than the sub? Nope, it's based on Xmax, desired tuning frequency and cone area. Port area has nothing to do with box size. 2 12s in a 4 cube box need the same amount of port AREA, as 2 12s in a 5 cube box. Good stuff Justin Old School/New School RF Build March 2015 SOTM Winner How to crimp large wire
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