Team Sundown's Charles Posted April 29, 2008 Report Share Posted April 29, 2008 if i have a port 8" around 18" long. what would my port area be? Quote 1993 Mazda Mx-3 Subs: 2 18" DC Audio Lvl 4 D.7 Highs amp: Sundown SAX-100.4 Sub amp: Sundown SAZ-3000D Electrical:Kinetik 1200 under hood, 2-Kinetik 2400 rear All 1/0 KnuKonceptz Wire Power/Ground, Big 3, 8Ga Speaker Wire, KnuKonceptz Karma RCA's Dampening: 120sqft 80Mil Thick Sound Destroyer Mat Goal: 150 DB 149.9 Street Bass Link to comment Share on other sites More sharing options...
Sampsonite Posted April 30, 2008 Report Share Posted April 30, 2008 (edited) 8 X 3.14 X 18 = 452.16 cu.in Edited April 30, 2008 by footlongsam Quote --Sampson 816-591-6592 www.kcrimshop.com Link to comment Share on other sites More sharing options...
banginAltima Posted April 30, 2008 Report Share Posted April 30, 2008 (edited) The port AREA of an 8 inch port is 50.27 square inches. (radiusxradiusx3.1416) = area The port VOLUME is (4x4x3.1416x18)=904.78 square inch ((radiusxradius)x3.1416xlength) = volume then divided by 1728 = cubic feet displacement 904.78/1728=.5236 cubic feet displacement. Edited April 30, 2008 by banginAltima Quote If you build it, db's will come... NSPL World Record Holder Trunk 0-1800 watts---147.9 with 1722 clamped watts @ 40Hz(9-20-09). Competition Only Record Holder Trunk 0-500 watts---148.1 2006 Nissan Altima 3.5 SE Currently Rebuilding.... My 150db Plus Trunk Build I do box designs. [benH] 6:24 pm: clipping doesn't really hurt subs [benH] 6:24 pm: being an idiot is what blows subs Link to comment Share on other sites More sharing options...
Team Sundown's Charles Posted April 30, 2008 Author Report Share Posted April 30, 2008 thanks guys Quote 1993 Mazda Mx-3 Subs: 2 18" DC Audio Lvl 4 D.7 Highs amp: Sundown SAX-100.4 Sub amp: Sundown SAZ-3000D Electrical:Kinetik 1200 under hood, 2-Kinetik 2400 rear All 1/0 KnuKonceptz Wire Power/Ground, Big 3, 8Ga Speaker Wire, KnuKonceptz Karma RCA's Dampening: 120sqft 80Mil Thick Sound Destroyer Mat Goal: 150 DB 149.9 Street Bass Link to comment Share on other sites More sharing options...
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