rival904 Posted September 22, 2010 Report Share Posted September 22, 2010 I agree with Boon. 2500s LOVE bandpasses. Im doing 4 3515s in a 4th order now, 9.33cu.ft sealed, and 27+cu.ft ported tuned at 45hz. I had problems with the 2500s getting to hot and the coils failing, I think if I would have put their motors in the ported section they would have cooled down better. There was a guy at SBN that had 4 3515s in a 4th order wall doing a 153 @ 25hz or so. 2004 Yellow F150 STX 4x4 Single Cab 2 Yellow DC Power 270SP's Alts 4(and counting) XS Power 6500's 4 DD3515s Supercharged 53cu.ft 4th order blowthrough 8 DD M1b's 6 Selenium 8's 2 Selenium ST350s 154.1 @ 41hz Legal Burp Build Log Link to comment Share on other sites More sharing options...
Boon Posted September 22, 2010 Report Share Posted September 22, 2010 I agree with Boon. 2500s LOVE bandpasses. Im doing 4 3515s in a 4th order now, 9.33cu.ft sealed, and 27+cu.ft ported tuned at 45hz. I had problems with the 2500s getting to hot and the coils failing, I think if I would have put their motors in the ported section they would have cooled down better. There was a guy at SBN that had 4 3515s in a 4th order wall doing a 153 @ 25hz or so. You're not the first person to stick a 25 in a bandpass, go WOW this sounds GREAT and cook the coils because the motor was in the sealed half They go way better if the motor can get fresh air to it 10.x volts fo' life! Link to comment Share on other sites More sharing options...
IH8PunkRok Posted September 22, 2010 Author Report Share Posted September 22, 2010 What's wrong with your current box? I've found that the DD design is a damn good compromise between output and quality. Anywhere from 12-18 inches of port works great. Since you're running plenty of power you could possibly decrease the box size and increase the port area a little, basically what you're suggesting, but I don't think you would gain much. Slightly under 2 cubes would work well IMO. my current box sounds great but was kinda saddening on the meter. im like the only person in the world with a DD not doing over 140 -Matt2005 Dodge Magnum RTJVC KD-AVX1 2 PPI S580.2 Obsidian Audio ST1 Horn Tweeters PRV 8MB450s Audio Legion 3500.1D 2 RE MT 18s 360 ah LiFePO4 BatterySHCA 2/0 155.2 @ 29 hzKicker CVR 15's buildDD 3512e buildMini T-Line Build(6) 8s BuildNightshade 15s Wall BuildMagnum AB XFL 12s BuildNewest Magnum Build Link to comment Share on other sites More sharing options...
Boon Posted September 23, 2010 Report Share Posted September 23, 2010 my current box sounds great but was kinda saddening on the meter. im like the only person in the world with a DD not doing over 140 From a trunker without insane amounts of power don't sweat it. We managed to pull a 140.2 from a 9512 on 1kw in a trunk car but we had to pull the damn back seat out to get there. It's not super duper easy. 10.x volts fo' life! Link to comment Share on other sites More sharing options...
IH8PunkRok Posted September 23, 2010 Author Report Share Posted September 23, 2010 From a trunker without insane amounts of power don't sweat it. We managed to pull a 140.2 from a 9512 on 1kw in a trunk car but we had to pull the damn back seat out to get there. It's not super duper easy. i guess i was fooled then. tons of people on here make it seem easy. ill seal it off for now and see where i get -Matt2005 Dodge Magnum RTJVC KD-AVX1 2 PPI S580.2 Obsidian Audio ST1 Horn Tweeters PRV 8MB450s Audio Legion 3500.1D 2 RE MT 18s 360 ah LiFePO4 BatterySHCA 2/0 155.2 @ 29 hzKicker CVR 15's buildDD 3512e buildMini T-Line Build(6) 8s BuildNightshade 15s Wall BuildMagnum AB XFL 12s BuildNewest Magnum Build Link to comment Share on other sites More sharing options...
MADVIBES Posted September 23, 2010 Report Share Posted September 23, 2010 why not use the spare tire space? Fiber glass the floor of your car face sub up and port up. Under the back dash making sure all bass has to fire off back window You can build a 6 cubic box and still have room for stuff. I am going to dig up a photo of my acura tl. When I do I will post a pic. I would have put my 18's under the dash if servicing them wasnt such a pain the butt! DB DRAG PSYCHLONE PRO 156.3 30 SECOND AVERAGE FO MAX AT 26HZ LEGAL DASH DRIVER DOOR OPEN 158.0@30 HZ MY BEST SO FAR, HOPEFULLY A 160 COME FEBUARY. 156.9@26hz 158.0@30hz Link to comment Share on other sites More sharing options...
IH8PunkRok Posted September 23, 2010 Author Report Share Posted September 23, 2010 why not use the spare tire space? Fiber glass the floor of your car face sub up and port up. Under the back dash making sure all bass has to fire off back window You can build a 6 cubic box and still have room for stuff. I am going to dig up a photo of my acura tl. When I do I will post a pic. I would have put my 18's under the dash if servicing them wasnt such a pain the butt! would i need to hack up the rear dash? ive lived without my trunk for quite some time so that isnt an issue -Matt2005 Dodge Magnum RTJVC KD-AVX1 2 PPI S580.2 Obsidian Audio ST1 Horn Tweeters PRV 8MB450s Audio Legion 3500.1D 2 RE MT 18s 360 ah LiFePO4 BatterySHCA 2/0 155.2 @ 29 hzKicker CVR 15's buildDD 3512e buildMini T-Line Build(6) 8s BuildNightshade 15s Wall BuildMagnum AB XFL 12s BuildNewest Magnum Build Link to comment Share on other sites More sharing options...
MADVIBES Posted September 23, 2010 Report Share Posted September 23, 2010 would i need to hack up the rear dash? ive lived without my trunk for quite some time so that isnt an issue yes would have to hack....a nice area the size of a couple of tens would be perfect. DB DRAG PSYCHLONE PRO 156.3 30 SECOND AVERAGE FO MAX AT 26HZ LEGAL DASH DRIVER DOOR OPEN 158.0@30 HZ MY BEST SO FAR, HOPEFULLY A 160 COME FEBUARY. 156.9@26hz 158.0@30hz Link to comment Share on other sites More sharing options...
IH8PunkRok Posted September 23, 2010 Author Report Share Posted September 23, 2010 yes would have to hack....a nice area the size of a couple of tens would be perfect. id like to avoid that. 1. i hate cutting up my car 2. that would put me in the modified class in MECA, which would cause me to get my ass handed to me everytime i compete -Matt2005 Dodge Magnum RTJVC KD-AVX1 2 PPI S580.2 Obsidian Audio ST1 Horn Tweeters PRV 8MB450s Audio Legion 3500.1D 2 RE MT 18s 360 ah LiFePO4 BatterySHCA 2/0 155.2 @ 29 hzKicker CVR 15's buildDD 3512e buildMini T-Line Build(6) 8s BuildNightshade 15s Wall BuildMagnum AB XFL 12s BuildNewest Magnum Build Link to comment Share on other sites More sharing options...
MADVIBES Posted September 23, 2010 Report Share Posted September 23, 2010 id like to avoid that. 1. i hate cutting up my car 2. that would put me in the modified class in MECA, which would cause me to get my ass handed to me everytime i compete well then.... I say point sub up and port up at back trunk. Your car will rattle. but your low bass will be outstanding...when I say low I mean 30ish. DB DRAG PSYCHLONE PRO 156.3 30 SECOND AVERAGE FO MAX AT 26HZ LEGAL DASH DRIVER DOOR OPEN 158.0@30 HZ MY BEST SO FAR, HOPEFULLY A 160 COME FEBUARY. 156.9@26hz 158.0@30hz Link to comment Share on other sites More sharing options...
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