Sammitch0 Posted August 21, 2011 Report Share Posted August 21, 2011 Looking for subs up port back design 43x20-22x21-22 (max dimensions try to use minimum first numbers first ) Looking for lower tuning between 32-35 (looking for closer to 32-33) & between 14-15 inches of port Going to be running a DC 1.2K @ 1 Ohm for about 1600RMS Subwoofers upwards port back It's going in a 1995 Jeep Grand Cherokee Laredo Nothing too fancy no need for 45's or anything simpler the better... I'll do all my own creative techniques just need a design that will fit :-/ Quote Grand Cherokee Team Backwoods Bumpers DC 15" Level 3's /w 4 Coils Pioneer deh4200ub Pioneer 3-ways Pioneer Tweeters Pioneer GM-D9500F Audiopipe 1500.1D @ 14.4v Clarion Equalizer Knuconeptz Kollosus 0ga Knuconpetz Kollosus 4ga Coming Soon: 270xp / xs1200 Link to comment Share on other sites More sharing options...
tonedeaf Posted August 21, 2011 Report Share Posted August 21, 2011 What subs...what size subs...and why skimping on the port? Quote Link to comment Share on other sites More sharing options...
Sammitch0 Posted August 21, 2011 Author Report Share Posted August 21, 2011 oops DC Level 3 15's off a DC 1.2K running 1.6K and I don't know if you can get more port than by all means :-p Quote Grand Cherokee Team Backwoods Bumpers DC 15" Level 3's /w 4 Coils Pioneer deh4200ub Pioneer 3-ways Pioneer Tweeters Pioneer GM-D9500F Audiopipe 1500.1D @ 14.4v Clarion Equalizer Knuconeptz Kollosus 0ga Knuconpetz Kollosus 4ga Coming Soon: 270xp / xs1200 Link to comment Share on other sites More sharing options...
Ray Posted August 21, 2011 Report Share Posted August 21, 2011 Thats prob per cuft. Duhh Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
tonedeaf Posted August 21, 2011 Report Share Posted August 21, 2011 Thats prob per cuft. Duhh Quote Link to comment Share on other sites More sharing options...
tonedeaf Posted August 21, 2011 Report Share Posted August 21, 2011 Your dimensions are confusing me too...are you wanting a square box or an angled box, and are your first dimensions for your bottom height and the top for your top heigh? Quote Link to comment Share on other sites More sharing options...
Sammitch0 Posted August 21, 2011 Author Report Share Posted August 21, 2011 43 = Width, the fluctuating numbers are what i want and my maximum. So if its 20-23 or something I'm looking for 20 but I can do 23. and no no angles just a rectangle box should been more specific sorry at work >.< 43w x 20-21h x 20-22d Quote Grand Cherokee Team Backwoods Bumpers DC 15" Level 3's /w 4 Coils Pioneer deh4200ub Pioneer 3-ways Pioneer Tweeters Pioneer GM-D9500F Audiopipe 1500.1D @ 14.4v Clarion Equalizer Knuconeptz Kollosus 0ga Knuconpetz Kollosus 4ga Coming Soon: 270xp / xs1200 Link to comment Share on other sites More sharing options...
tonedeaf Posted August 21, 2011 Report Share Posted August 21, 2011 Heres what I whipped up. 43Lx22Wx21H with the sub up and the port running along the back driver side. I tried for a center box port like most try, but I couldnt really make it work. So . Port is: 19.5Hx5.5Wx25L with 3 common port walls coming out to 108 inches of port, tuned to 33.55 hz. If you could at all make the box taller though, id shoot more towards another half cube per, as this is sitting at about 7.07 net. So if you can make it taller/deeper with it being atleast 8" or so from your back gate, that would give you a bit bigger box, which id go for about 4 per. If I get bored later ill shoot you a sketchup. Tried plugging this in WINISD but it didnt want to take the lvl 3 specs, so , best I can do without slightly bigger dimensions if you can spare them. Quote Link to comment Share on other sites More sharing options...
Sammitch0 Posted August 21, 2011 Author Report Share Posted August 21, 2011 you could probably go 23 on the depth and another inch on the hight thats the max i'd go though remember these are 600rms im running 800 so i dont want it too big... Also make sure the port isnt so long that the subs wont fit on the top of the box thats the problem i was running into. Quote Grand Cherokee Team Backwoods Bumpers DC 15" Level 3's /w 4 Coils Pioneer deh4200ub Pioneer 3-ways Pioneer Tweeters Pioneer GM-D9500F Audiopipe 1500.1D @ 14.4v Clarion Equalizer Knuconeptz Kollosus 0ga Knuconpetz Kollosus 4ga Coming Soon: 270xp / xs1200 Link to comment Share on other sites More sharing options...
tonedeaf Posted August 21, 2011 Report Share Posted August 21, 2011 At 25 inches the port will stick out 10 inches into the box after the 90 degree turn with a 5.5" width. You have about, being slightly conservative, 11 inches of play there with the sub not hitting the port. That being said, you could mount them more towards the back hatch and they wouldnt ever get near the port. Im not sure if you would have unloading issues with the port like that though, as I have never made a sub up port back box, so if someone else could chime in, that would be loevely. As for going too big, 3.5 I believe is the 'suggested' size. My lvl 5 has a suggested size of 1.5 CF, its in 2.6 right now and wrecking shit. Your power handling will be plenty fine with a slightly bigger box as long as the power you send these are clean. Quote Link to comment Share on other sites More sharing options...
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