Hostility Posted February 2, 2010 Report Share Posted February 2, 2010 (edited) hey, can someone check my numbers and my awesome picture to make sure i have this right? 2 15" nightshades -- subs up, port up -- box height - 24 depth - 16 Length - 43 Port height - 14.5 width - 6.5 length - 24 net air space 6.15ft3. port area 94.25 in2. @32.43 red is port, blue is measuring Edited February 4, 2010 by Hostility Quote 99 s10 4.3L Big 3 220amp alt Odyssey 1500 Odyssey 2150 Northstar NSB 75 Sundown Audio 3500D Sundown Audio 125.2 3 Sundown Audio SA-12's Alpine H/U RF Power Comp set 6.5" RF 3 sixty line driver 5.25 cubes @ 31hz Link to comment Share on other sites More sharing options...
Hostility Posted February 3, 2010 Author Report Share Posted February 3, 2010 (edited) Or should i do subs forward port up? im just worried of having the subs hit the seats Edited February 4, 2010 by Hostility Quote 99 s10 4.3L Big 3 220amp alt Odyssey 1500 Odyssey 2150 Northstar NSB 75 Sundown Audio 3500D Sundown Audio 125.2 3 Sundown Audio SA-12's Alpine H/U RF Power Comp set 6.5" RF 3 sixty line driver 5.25 cubes @ 31hz Link to comment Share on other sites More sharing options...
Hostility Posted February 5, 2010 Author Report Share Posted February 5, 2010 anyone? is that enough port? and is that diagram right? Quote 99 s10 4.3L Big 3 220amp alt Odyssey 1500 Odyssey 2150 Northstar NSB 75 Sundown Audio 3500D Sundown Audio 125.2 3 Sundown Audio SA-12's Alpine H/U RF Power Comp set 6.5" RF 3 sixty line driver 5.25 cubes @ 31hz Link to comment Share on other sites More sharing options...
EricR Posted February 5, 2010 Report Share Posted February 5, 2010 sounds about right man, i would do subs up port up. Quote i was thinking leave the 12 sitting in the box in the hole and duck tape from the bottom of the sub to the bottom of the baffle so the sub doesnt free air. would that work? Link to comment Share on other sites More sharing options...
Team Sundown's Charles Posted February 5, 2010 Report Share Posted February 5, 2010 anyone? is that enough port? and is that diagram right? divide you Cu.ft by your port area...You want it between 12-16 sq in per cu ft. The closer to 16 you are the more spl you will have. 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...
Hostility Posted February 5, 2010 Author Report Share Posted February 5, 2010 divide you Cu.ft by your port area...You want it between 12-16 sq in per cu ft. The closer to 16 you are the more spl you will have. yea i know between 12-16, but thats a very big difference in between, my last box was 80 sq inches of port and i felt i was chocking them, im not going for numbers at all. just ground pounder style with the loowwws, so is that port area just fine then or will i not like it to much? Quote 99 s10 4.3L Big 3 220amp alt Odyssey 1500 Odyssey 2150 Northstar NSB 75 Sundown Audio 3500D Sundown Audio 125.2 3 Sundown Audio SA-12's Alpine H/U RF Power Comp set 6.5" RF 3 sixty line driver 5.25 cubes @ 31hz Link to comment Share on other sites More sharing options...
bromo Posted February 5, 2010 Report Share Posted February 5, 2010 Internal volume is wrong which means the tuning wont be that either. internal width of 33.25" * internal depth 22.5" * internal height of 14.5" = 10847.8125in^3 / 1728 = 6.28 - .42 sub displacement = 5.86 ft^3 Quote Link to comment Share on other sites More sharing options...
Hostility Posted February 5, 2010 Author Report Share Posted February 5, 2010 Internal volume is wrong which means the tuning wont be that either.internal width of 33.25" * internal depth 22.5" * internal height of 14.5" = 10847.8125in^3 / 1728 = 6.28 - .42 sub displacement = 5.86 ft^3 sorry your dimensions are wrong internal dimensions are 34.25 wide x 22.5 high x 14.5 = 11174.0625 Quote 99 s10 4.3L Big 3 220amp alt Odyssey 1500 Odyssey 2150 Northstar NSB 75 Sundown Audio 3500D Sundown Audio 125.2 3 Sundown Audio SA-12's Alpine H/U RF Power Comp set 6.5" RF 3 sixty line driver 5.25 cubes @ 31hz Link to comment Share on other sites More sharing options...
Team Sundown's Charles Posted February 5, 2010 Report Share Posted February 5, 2010 sorry your dimensions are wrong internal dimensions are 34.25 wide x 22.5 high x 14.5 = 11174.0625 5.8 is ok . They work good in that size. I did 147 with 2 15" nightshade in that size tuned to 36hz. Subs will that great in anything from 5.8-7 cuft tuned from 34 to 38 hz. I love them in 5.8 tuned to 35hz. plays eveything. I don't what type of music you like. I try everything from Coletrain to 2Pac 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...
Hostility Posted February 5, 2010 Author Report Share Posted February 5, 2010 5.8 is ok . They work good in that size. I did 147 with 2 15" nightshade in that size tuned to 36hz. Subs will that great in anything from 5.8-7 cuft tuned from 34 to 38 hz. I love them in 5.8 tuned to 35hz. plays eveything. I don't what type of music you like. I try everything from Coletrain to 2Pac well i want the box to be 6 cubes at 32 hz, i listen to a lot of e-40, too short, low bass stuff. i just dont see how the box i have in the first post is wrong? Quote 99 s10 4.3L Big 3 220amp alt Odyssey 1500 Odyssey 2150 Northstar NSB 75 Sundown Audio 3500D Sundown Audio 125.2 3 Sundown Audio SA-12's Alpine H/U RF Power Comp set 6.5" RF 3 sixty line driver 5.25 cubes @ 31hz Link to comment Share on other sites More sharing options...
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