dragonsage2008 Posted May 6, 2012 Report Share Posted May 6, 2012 ok i need some help with tuning.. looking to do a clamshell in a 4 door jimmy/blazer. 4 obsidian 15s.. box width 36" height 28" and depth 25" and 1" thick .. the subs will be mounted horizontally on the wall... and this will be behind the back seats.. the back seats sit about 17 inches high and i want for this to be a ground pounder... and hit some good numbers.. yet sound good... can any one help me with a box design??? Quote top back Link to comment Share on other sites More sharing options...
john253a Posted May 6, 2012 Report Share Posted May 6, 2012 Quote Link to comment Share on other sites More sharing options...
john253a Posted May 6, 2012 Report Share Posted May 6, 2012 (edited) the only problem i see is the 28" high 2x 15" = 30-32" and wont fit in height i see you say horizontally, how do you plane to do that with 25 deep and 36 width that still only = 2x 15" Edited May 6, 2012 by john253a Quote Link to comment Share on other sites More sharing options...
dragonsage2008 Posted May 6, 2012 Author Report Share Posted May 6, 2012 horizontally 2 on the top 2 on the bottom almost like its a normal wall but clamshell.. Quote top back Link to comment Share on other sites More sharing options...
dragonsage2008 Posted May 6, 2012 Author Report Share Posted May 6, 2012 somthing like that Quote top back Link to comment Share on other sites More sharing options...
john253a Posted May 6, 2012 Report Share Posted May 6, 2012 is that 2 boxes the same as above or 1 that box is only just big enough as is let alone once split Quote Link to comment Share on other sites More sharing options...
dragonsage2008 Posted May 6, 2012 Author Report Share Posted May 6, 2012 clamshell is one box the middle there is the port opening... really more or less i think it would be a 4th order bandpass... Quote top back Link to comment Share on other sites More sharing options...
john253a Posted May 6, 2012 Report Share Posted May 6, 2012 no way not gonna fit as 1 soild box with port your only at 9 cuft net once you split it your going to be down around 4-5 net thats no were near enough for 4 15" Quote Link to comment Share on other sites More sharing options...
dragonsage2008 Posted May 6, 2012 Author Report Share Posted May 6, 2012 befor port displacement as a straight wall with sub displacement its siting at 11 cu ft... each 15 has a .19 cu ft displacement .19x4+.75 box would be 11.76 befor that.. after that 11.01 and im talking bandpass not straight wall Quote top back Link to comment Share on other sites More sharing options...
john253a Posted May 6, 2012 Report Share Posted May 6, 2012 4th order at 2:1 for 4x15" will require around 6-8cuft net sealed and 12-16 ported, thats 18-24cuft net, in 12gross idd say only 2 are going to fit Quote Link to comment Share on other sites More sharing options...
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