loud Posted July 31, 2011 Report Share Posted July 31, 2011 (edited) im waiting on my xl 15(comes august 3) and i would like to know what you guys think of the box. if i need to change anything or suggestions. sub will be running off a aq2200 and will be in a 2006 Pontiac grand prix. and will be sealed off *yes i know the sketch of the box doesn't have a x2 baffle. Edited July 31, 2011 by loud Quote Link to comment Share on other sites More sharing options...
blownengine Posted July 31, 2011 Report Share Posted July 31, 2011 Needs more port area. And the Aero will be kinda close to the back wall. Just like I said in the thread yesterday....... Quote 2003 Dodge Ram 1500 SLT (Yea its got a Hemi)Alpine CDA-105KnuKonceptz 0ga CCA Big 3 with Yellow Top 15" SoundQubed HDC3DC Audio 1.2K (Bass)Pioneer 6x9's (Front)Pioneer 6.5's (Rear)Kicker 3.5's (Dash)Sony amp on the highs. (Hey it was free) Link to comment Share on other sites More sharing options...
loud Posted July 31, 2011 Author Report Share Posted July 31, 2011 what size port do you recommend Quote Link to comment Share on other sites More sharing options...
loud Posted July 31, 2011 Author Report Share Posted July 31, 2011 how far away should it be from the back of the box. all you told me yesterday was 6 inches, and i thought you were talking about the distance from the side wall. Quote Link to comment Share on other sites More sharing options...
Kranny Posted July 31, 2011 Report Share Posted July 31, 2011 how far away should it be from the back of the box. all you told me yesterday was 6 inches, and i thought you were talking about the distance from the side wall. its generally X inches from any wall, so i've heard Quote Link to comment Share on other sites More sharing options...
loud Posted July 31, 2011 Author Report Share Posted July 31, 2011 how far away should it be from the back of the box. all you told me yesterday was 6 inches, and i thought you were talking about the distance from the side wall. its generally X inches from any wall, so i've heard ohh ok. well that helps alot Quote Link to comment Share on other sites More sharing options...
loud Posted July 31, 2011 Author Report Share Posted July 31, 2011 what would happen if i only had that distance away from the wall. Quote Link to comment Share on other sites More sharing options...
scfaust Posted July 31, 2011 Report Share Posted July 31, 2011 (edited) i was told it the same distance from the wall as the port is big so............. if u have 4" port its 4"s from the wall if u have a 6" port its 6" from the wall and so on but if this is not correct some feel free to tell me cause i would like to know as well. i heard if u dont put it far nuff away u will get port noise and im not sure of the ether Edited July 31, 2011 by scfaust Quote http://i720.photobucket.com/albums/ww203/scfaust1/alphadamp.png Link to comment Share on other sites More sharing options...
loud Posted July 31, 2011 Author Report Share Posted July 31, 2011 is this any better i could always make the box deeper but i dont want the box to big. Quote Link to comment Share on other sites More sharing options...
Nightshade Posted July 31, 2011 Report Share Posted July 31, 2011 In my opinion I would go with a 4 cube after displacement box. The ports that I would use in this case would be 3 4" aeros instead of the single 6. There are a couple of reasons for the 4's instead of the 6" like they are 9.42sqin of port more then the 6", and it increases the port area per cuft to 9.42sqin over the 6.8sqin that you have. This will increase output and efficiency. Also I saw someone mention that the 6" will be close to the back wall of the box and that's absolutely correct. Whatever the width of the port is how far away you need to keep it from a wall on either end be it in front of the port or behind it. If it's a 6" port then you need at least 6" from the end flare to the back wall of the box. If you use 4" ports you will have extra room, but will actually need to make them longer then the 6" port since they have more port area and I've suggested a .5cuft smaller box. There's a few things that you can do to fix this. Either make the box a little deeper to help get the added depth that you'll need. Or you can increase the box volume to help with the length of the port being shorter, but I already believe that 4.5 is too much volume for the woofer to begin with. It's up to you, but no matter what port configuration that you use it would be best to put it closer to the driver's side of the box instead of being centered between the woofer and driver's side wall of the box. This allows the wave inside the box to develop more before exiting, and when you throw it right in the middle where you have it in the design it may not reach it's full potential creating pressure inside the enclosure before it's forced out into the cabin of the vehicle. I've personally tested several enclosures and port placement and I've found that 99% of the time as far away from the woofer as you can set the port up is going to result in the enclosure being louder. Quote 2013 VW Jetta GLI 2.0 Turbo 1 Sundown Audio SCV2000 1 Sundown Audio X15 V2 1 XS Power D3100 Audio Control LC6i Stock Deck 146.4 sealed on the dash at 37hz 2001 Focus ZX3: RETIRED Team Sundown Audio, Team XS Power, 2 time NSPL Car 3601-Up Champion, 2 time NSPL Car Hardcore ChampionHighest NSPL Scores to date:154.3db on the dash sealed at 46hz, 156.2db in the kick at 46hz155.2db unofficial on dash at 43hz Link to comment Share on other sites More sharing options...
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