miniSPLlancer Posted March 21, 2013 Report Share Posted March 21, 2013 Aero port, build one box and adjust the port per freq and go from there 2011 Mitsubishi OutlanderSony 712 Soundqubed HDS208 Alpine MRV-M500 Transmission line enclosure Soundqubed wiring Knu rca XS Power battery CNF terminals Link to comment Share on other sites More sharing options...
srool Posted April 1, 2013 Author Report Share Posted April 1, 2013 Its a trunk build, the seats does not fold so I would get them out I guess mhart is right and my best shot is building several diameters external aeroports and shrink them until I get the best result. Now I just need to wait for the the subwoofers. Link to comment Share on other sites More sharing options...
alaskanzx5 Posted April 2, 2013 Report Share Posted April 2, 2013 Its a trunk build, the seats does not fold so I would get them out I guess mhart is right and my best shot is building several diameters external aeroports and shrink them until I get the best result. Now I just need to wait for the the subwoofers. yeah the best way is with testing. if your resonant is 46hz and your using round ports try at 36hz with around 10" of port per cuft. then raise the tuning to about 38hz with about the same port area. then go up t 40hz. keep doing that until you don't gain anything. after you find a good spot to tune at try having less and more port area with the same tuning freq. more port area should make is peakier around the tuning freq while less port area should give it a wider freq range. t1500bdcp 2 t2d4 15" 1 t600.4 1 t400.2 1 set p1 tweets singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz. Link to comment Share on other sites More sharing options...
fecupe2001 Posted April 2, 2013 Report Share Posted April 2, 2013 That 8-12 SQ per cubic feet on aeros it´s garbage if you are looking to build for SPL, just try a few aeros out , test test and test P.S: I´m using 42 SQ per cubic feet , single 6" aero for a 8" subwoofer and i´m doing GREAT, port size depends mostly on the sub, not the box size I´m the SPL Gains topic creator!! wanna get louder?? check this: SPL Gains. Panamenian 2009 & 2010 & 2014 Bass Race 149.9 Champion! 2 15" subs and a 2K wired at 1 ohm, http://www.stevemeadedesigns.com/board/topic/167788-fecupe2001-2-15s-on-a-2k-video-on-page-3/ 8 Massive 15" subs and small power, http://www.stevemeadedesigns.com/board/topic/179296-fecupe2001s-8-15s-4th-order-bandpass-wall/ Link to comment Share on other sites More sharing options...
srool Posted April 2, 2013 Author Report Share Posted April 2, 2013 I've built a box or two with port area of 8-16 cu.in/sq.ft. I know that if I want to max my result it's not enough, I just wanted to know if I'll be good with 20 per or should I aim to 30 per or so. Link to comment Share on other sites More sharing options...
boostdoctor Posted July 10, 2013 Report Share Posted July 10, 2013 That 8-12 SQ per cubic feet on aeros it´s garbage if you are looking to build for SPL, just try a few aeros out , test test and test P.S: I´m using 42 SQ per cubic feet , single 6" aero for a 8" subwoofer and i´m doing GREAT, port size depends mostly on the sub, not the box size damnnnnnn!!!! 87 Caprice twin-turbo 6.0 2 DC 15 xl's Sundown 3k 96 Volvo 850r 3 15's on 9k - no wall 154.3db legal www.youtube.com/boostdoctor www.facebook.com/boostdoctor Link to comment Share on other sites More sharing options...
alaskanzx5 Posted July 10, 2013 Report Share Posted July 10, 2013 from what ive learned in recent searches is that port area is more dependent on the amount of air a sub can move then the box size itself. want to keep it with in x amount of port velocity to prevent port noise. still learning on the port velocity thing though. t1500bdcp 2 t2d4 15" 1 t600.4 1 t400.2 1 set p1 tweets singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz. Link to comment Share on other sites More sharing options...
boostdoctor Posted July 16, 2013 Report Share Posted July 16, 2013 That 8-12 SQ per cubic feet on aeros it´s garbage if you are looking to build for SPL, just try a few aeros out , test test and test P.S: I´m using 42 SQ per cubic feet , single 6" aero for a 8" subwoofer and i´m doing GREAT, port size depends mostly on the sub, not the box size What should I look for in a sub if I'm after big big port area? 87 Caprice twin-turbo 6.0 2 DC 15 xl's Sundown 3k 96 Volvo 850r 3 15's on 9k - no wall 154.3db legal www.youtube.com/boostdoctor www.facebook.com/boostdoctor Link to comment Share on other sites More sharing options...
Kyblack76 Posted July 16, 2013 Report Share Posted July 16, 2013 from what ive learned in recent searches is that port area is more dependent on the amount of air a sub can move then the box size itself. want to keep it with in x amount of port velocity to prevent port noise. still learning on the port velocity thing though. Im running a P-area that most people on this forum would laugh at... Meh.. may work. may not... well see... SMD SUPER SELLER The Burban Build Blazer Build sold Acura trunk build sold Link to comment Share on other sites More sharing options...
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