lotus Posted January 6, 2012 Report Share Posted January 6, 2012 Need help building a box for two 12" american bass XD's. i need it to fit my cobalt coupe LTs trunk. the current box i have is small and only has a 2 inch wide port. i have seen videos of people with 5-6inch ports with these subs that really bumped hard. need help with dimentions and tunning. im running them off an american bass vfl 100.1 (1500rms) Quote 2010 Cobalt LT Coupe Subs: 2 American bass XFL 12s Amp: Crescendo BC3500D Big 3 in 1/0awg 29hz box stinger volt meter 2nd battery Deka 9a31 pioneer DEH-9400BH Link to comment Share on other sites More sharing options...
MDWSTBoom Posted January 6, 2012 Report Share Posted January 6, 2012 What demensions do you have to work with as far as the trunk goes. Quote Alpine 9886 Rockford mids and highs MBQUART 4.125 2 xfl 15's 2 TRX2000.1's Optima up front,Knetic 2400 in back Link to comment Share on other sites More sharing options...
lotus Posted January 6, 2012 Author Report Share Posted January 6, 2012 What demensions do you have to work with as far as the trunk goes. it can be up to 15" tall, 34" wide and 21" length Quote 2010 Cobalt LT Coupe Subs: 2 American bass XFL 12s Amp: Crescendo BC3500D Big 3 in 1/0awg 29hz box stinger volt meter 2nd battery Deka 9a31 pioneer DEH-9400BH Link to comment Share on other sites More sharing options...
lotus Posted January 6, 2012 Author Report Share Posted January 6, 2012 i'd like it to be big and for the port to be at least 4" or more wide, but i have no idea how to tune Quote 2010 Cobalt LT Coupe Subs: 2 American bass XFL 12s Amp: Crescendo BC3500D Big 3 in 1/0awg 29hz box stinger volt meter 2nd battery Deka 9a31 pioneer DEH-9400BH Link to comment Share on other sites More sharing options...
AmericanLegend Posted January 6, 2012 Report Share Posted January 6, 2012 Try a 4.0 cubic foot box with an 8x8 inch square port tuned to 32-ish. Quote Link to comment Share on other sites More sharing options...
lotus Posted January 6, 2012 Author Report Share Posted January 6, 2012 Try a 4.0 cubic foot box with an 8x8 inch square port tuned to 32-ish. i have no idea how to tune a box, the wood work is no problem but, idk where to put the wood inside the box Quote 2010 Cobalt LT Coupe Subs: 2 American bass XFL 12s Amp: Crescendo BC3500D Big 3 in 1/0awg 29hz box stinger volt meter 2nd battery Deka 9a31 pioneer DEH-9400BH Link to comment Share on other sites More sharing options...
AmericanLegend Posted January 6, 2012 Report Share Posted January 6, 2012 You have to draw the box up before you build it. That way, you know how much air is inside it and the port. Or, you can pay somebody to design a box for you and you just go of their specifications when building. Quote Link to comment Share on other sites More sharing options...
lotus Posted January 6, 2012 Author Report Share Posted January 6, 2012 You have to draw the box up before you build it. That way, you know how much air is inside it and the port. Or, you can pay somebody to design a box for you and you just go of their specifications when building. what website sells box designs? Quote 2010 Cobalt LT Coupe Subs: 2 American bass XFL 12s Amp: Crescendo BC3500D Big 3 in 1/0awg 29hz box stinger volt meter 2nd battery Deka 9a31 pioneer DEH-9400BH Link to comment Share on other sites More sharing options...
Kranny Posted January 6, 2012 Report Share Posted January 6, 2012 you can message ram designs on here, or 412 cvx, or decaf, or ray. there are tons of other ones but those are the ones that i can think of off the top of my head. Quote Link to comment Share on other sites More sharing options...
MDWSTBoom Posted January 6, 2012 Report Share Posted January 6, 2012 Download Torres box calculator and just play around with it. Main things for tuning are for a slot port you want between 12 and 16 inches square per cubic foot of box air space. Quote Alpine 9886 Rockford mids and highs MBQUART 4.125 2 xfl 15's 2 TRX2000.1's Optima up front,Knetic 2400 in back Link to comment Share on other sites More sharing options...
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