rookie023 Posted February 12, 2009 Report Share Posted February 12, 2009 (edited) alright i made this earlier. 4 18 btl's. i put the basic dimensions i have room for i my car. can somebody help me out with this port and stuff or does it seem right? like ive said in some other posts i dont know how to figure out port size so helping me with the dimensions of it would be awesome. im fixing to start building this thing as soon as i get that figured out. i do have the front doubled up in this drawing and those dimensions with that included are left to right - 4'1" front to back (with the front doubled up) - 2' 6 3/4" bottom to top - 3'4" port depth - 1' 7 5/16" port heigth - 3' 1" port width - 7 13/16" cant really see them in that pic. like i said, all i really need is somebody to help me out with that port and let me know if u think thats enough room for 4 btl 18's. Edited February 12, 2009 by rookie023 Quote 2002 Chevrolet Tahoe 4 Kicker CVX 12's (under construction) Link to comment Share on other sites More sharing options...
///Alpine91 Posted February 12, 2009 Report Share Posted February 12, 2009 That will be tuned pretty low. But if thats what your looking for then yes that would work Quote 1 DC lvl 4 15" 1 Hifonics BXi 1608D 3.2ft^3 Box tuned to 32-33Hz Knu Kolossus Fleks Kable 1/0 Knu Karma SS 8 Gauge Speaker Wire Kenwood eXcelon KDC-X493 Head Unit (coming soon) Kenwood mids + highs (coming soon) Build Link to comment Share on other sites More sharing options...
dt64bulldog Posted February 12, 2009 Report Share Posted February 12, 2009 (edited) alright i made this earlier. 4 18 btl's. i put the basic dimensions i have room for i my car. can somebody help me out with this port and stuff or does it seem right? like ive said in some other posts i dont know how to figure out port size so helping me with the dimensions of it would be awesome. im fixing to start building this thing as soon as i get that figured out. i do have the front doubled up in this drawing and those dimensions with that included are left to right - 4'1" front to back (with the front doubled up) - 2' 6 3/4" bottom to top - 3'4" port depth - 1' 7 5/16" port heigth - 3' 1" port width - 7 13/16" cant really see them in that pic. like i said, all i really need is somebody to help me out with that port and let me know if u think thats enough room for 4 btl 18's. the box is around 30 cubes and the dimensions of the port its tuned to 27 hz Edited February 12, 2009 by dt64bulldog Quote 2 18's Fi SSD All Options Dual 2 ohm Rockford Fosgate T20001 Bd 1/0 gauge Knukonceptz power wire Pioneer Touch Screen Navigation AVIC F700 13.62 cu ft box ..28 hz 250 amp alternator 2 kinetik 2000 batteries Xs Vcm Module Link to comment Share on other sites More sharing options...
rookie023 Posted February 12, 2009 Author Report Share Posted February 12, 2009 (edited) ok well can you help me tune the port higher? is the port depth good enough? they say to tune btls in the 30's right? lets try 32hz. what would i need to change those port dimensions too? Edited February 12, 2009 by rookie023 Quote 2002 Chevrolet Tahoe 4 Kicker CVX 12's (under construction) Link to comment Share on other sites More sharing options...
///Alpine91 Posted February 12, 2009 Report Share Posted February 12, 2009 Well the ports gonna have to be bigger so your box is gonna have to be taller or wider. and yea i would go around 32-34Hz Quote 1 DC lvl 4 15" 1 Hifonics BXi 1608D 3.2ft^3 Box tuned to 32-33Hz Knu Kolossus Fleks Kable 1/0 Knu Karma SS 8 Gauge Speaker Wire Kenwood eXcelon KDC-X493 Head Unit (coming soon) Kenwood mids + highs (coming soon) Build Link to comment Share on other sites More sharing options...
Nightshade Posted February 12, 2009 Report Share Posted February 12, 2009 What kinda car do you have dude? Cause it's hard as hell to fit 2 18's high in most vehicles. If you have enough room and can fit them I'd say tune the box closer to 35 or 36hz. It'll still drop pleanty low enough but it will be closer to your car's resonant frequency and be louder overall. Honestly too I'd only go with about 6 cubes a woofer so you won't need a box much bigger than 24 cubes after displacement. As for port area I'd do 88sqin per sub which would be 352sqin and 14.66sqin per cuft. If you can honestly fit those 2 high I'll help you find out how deep you need to make the port. Quote 2013 VW Jetta GLI 2.0 Turbo 1 Sundown Audio SCV2000 1 Sundown Audio X15 V2 1 XS Power D3100 Audio Control LC6i Stock Deck 146.4 sealed on the dash at 37hz 2001 Focus ZX3: RETIRED Team Sundown Audio, Team XS Power, 2 time NSPL Car 3601-Up Champion, 2 time NSPL Car Hardcore ChampionHighest NSPL Scores to date:154.3db on the dash sealed at 46hz, 156.2db in the kick at 46hz155.2db unofficial on dash at 43hz Link to comment Share on other sites More sharing options...
rookie023 Posted February 12, 2009 Author Report Share Posted February 12, 2009 Well the ports gonna have to be bigger so your box is gonna have to be taller or wider. and yea i would go around 32-34Hz i couldnt figure out how to do it in google sketch but i could take that little extra area out on the top and bottom of that port and make the port 9" wide and 3' 2 1/2" tall at max. i have room to make it go farther in the box or not so far in the box too. i wanna get this figured out. please help Quote 2002 Chevrolet Tahoe 4 Kicker CVX 12's (under construction) Link to comment Share on other sites More sharing options...
rookie023 Posted February 12, 2009 Author Report Share Posted February 12, 2009 (edited) i couldnt figure out how to do it in google sketch but i could take that little extra area out on the top and bottom of that port and make the port 9" wide and 3' 2 1/2" tall at max. i have room to make it go farther in the box or not so far in the box too. i wanna get this figured out. please help ok that may not be exactly rite. im trying to get it all figured out to make the port as big as i can. OK EDIT those numbers up there. my max width is 8 1/4" and my max heigth is 3' 2 1/2" question. how do you mean you dont think i could fit 18's high? i have a tahoe im building a c pillar wall Edited February 12, 2009 by rookie023 Quote 2002 Chevrolet Tahoe 4 Kicker CVX 12's (under construction) Link to comment Share on other sites More sharing options...
BassAddict59 Posted February 13, 2009 Report Share Posted February 13, 2009 What program did you use to design that box? Quote My First Set-Up (2008) -Kicker CVR 2 ohm 12's in crap Prefab box -Rockford digital 1 farad capacitor -Hifonics Bxi1608d -DB Link 2 gauge wiring kit -Pioneer DEH-P3000IB Head Unit My New Set-Up (2010) -4 Alpine Type E 10's -2 Apline MRP-M450's -Custom box tuned @ 36 hertz -JVC KD-R310 Head Unit -Rockford Fosgate 4 Gauge wiring -Monster Cable RCA's On the poor mans budget Link to comment Share on other sites More sharing options...
rookie023 Posted February 13, 2009 Author Report Share Posted February 13, 2009 What program did you use to design that box? google sketchup. redid the port a little bit and i used 12volt to figure out a few things. it says its 30.6666 cubes and supposedly with the new port is tuned to 32hz but i could be wrong. will somebody help me. heres the new port the port depth is 13" and its 8.25" wide and its 38.5" tall. whatcha think? Quote 2002 Chevrolet Tahoe 4 Kicker CVX 12's (under construction) Link to comment Share on other sites More sharing options...
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