soundsystemaniac Posted April 22, 2012 Report Share Posted April 22, 2012 (edited) hello everyone, ive got a build that im doing in a 2005 nissan altima 3.5 and i just bought a brand new fi sp4 15" d1 sub and a crunch gp3000 pro amp. I am looking at doing a bandpass box in the trunk ported through a self made ski hole in the center armrest in the back seat. But i dont even know where to start with ratios, or airspace in the ported vs sealed side, or how many sq inches or port or port length that would work well. my demensions that im planning on working with is 18 high, 34 wide, and 28 deep. That would just be a simple square box that would slide in and out of the trunk. i can squeeze about 2 more cubes IF NECESSARY, but everything will be a lot more complicated when it comes to designing. so without squeezing more room, it gives me 9.92 cubes GROSS with no disp. do you guys think i can work with that or need more room? suggestions? Also, tuning freq suggestions would be nice too. the goal is to be able to play mostly mainstream rap, and some lower stuff. (this is not intended to be a system that will only play chopped and screwed music) Edited April 22, 2012 by soundsystemaniac Quote Chevy astro 2 18s and 9k rms Walled!http://www.stevemead...rms-42-inch-tv/JEEP GRAN CHEROKEE SRT8 BUILD!2 JL AUDIO 15s trunk buildDC XL 15 buildDC level 3 18 buildhttp://www.stevemead...verunner-build/ http://www.facebook....hp?id=646651228 Link to comment Share on other sites More sharing options...
soundsystemaniac Posted April 23, 2012 Author Report Share Posted April 23, 2012 bump! Quote Chevy astro 2 18s and 9k rms Walled!http://www.stevemead...rms-42-inch-tv/JEEP GRAN CHEROKEE SRT8 BUILD!2 JL AUDIO 15s trunk buildDC XL 15 buildDC level 3 18 buildhttp://www.stevemead...verunner-build/ http://www.facebook....hp?id=646651228 Link to comment Share on other sites More sharing options...
SmallTruk Posted April 23, 2012 Report Share Posted April 23, 2012 Contact Ram Designs via his site, he can hook you up with a design. Quote Link to comment Share on other sites More sharing options...
john253a Posted April 24, 2012 Report Share Posted April 24, 2012 +1 there atlot harder to design then the STD boxes and need to modeled to the sub an desired hz range Quote Link to comment Share on other sites More sharing options...
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