greggtr Posted May 4, 2013 Report Share Posted May 4, 2013 Hey guys... Here is the deal... I need to get into the 150's at the dash Equipment: 2 x DD 9510 1 x DD M4 (~5K) 2 x Yellow top Optimas in the boot This wil run a test tone I need advise as to the optimum SPL boz size / port size and turning frequency... Also do I build to same size boxes or one box for both subs I built 2 x boxes according the DD's website but they look too small for max SPL The other variable is the car... We are sharing this project between a few of us... Cars: 2007 Merc ML320 SUV 2007 Merc CLK63 Coupe Mazda Mx6 Hatchback EK Honda Civic hatchback I think the euro cars can do well as they have excellent insulation and minimal leaks, but hatchback are hatchback and are great for SPL... Link to comment Share on other sites More sharing options...
__d_a_v_i_d__ Posted May 4, 2013 Report Share Posted May 4, 2013 With a hatch and a M4a you should be there in no time. You have the car, the power, the motorforce, maybe not the cone area. But the right box you should be there . I had 2 dd 9510s at 3.4 cubes tuned to 34hz doing 144s daily in a trunk car with 3k . Goodluck Chevy Impala Shocker Sigs / TC Sounds 12s Sundown NS-1 | SAX 100.4 Sundown Neos | Dayton Audio Neos ETCCC ETCCC ETCCC My YouTube ---- Subcribe!! Link to comment Share on other sites More sharing options...
fecupe2001 Posted May 7, 2013 Report Share Posted May 7, 2013 the hatchbacks are definitely the best option here, i would do something like 2 cubic feet and a 8" aeroport if you can fit it, and i hope that amplifier is wired at .5 ohms or less, if not, is gonna get more difficult to get a 150 wired at 1 ohm 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...
greggtr Posted May 8, 2013 Author Report Share Posted May 8, 2013 Well I made the DD recommended boxes 1.5 cubic feet each... but they look too small... that said, according to you guys thay should be fine... I cant wire them to 0.5ohms as they are Dual 4ohm so I will run them as 1ohms which is the lowest the amp is stable to... Link to comment Share on other sites More sharing options...
Dd9515 king Posted May 9, 2013 Report Share Posted May 9, 2013 Is this just for spl? Link to comment Share on other sites More sharing options...
greggtr Posted May 10, 2013 Author Report Share Posted May 10, 2013 Yep... one time only... burp just to win a bet that 2 x 10's can hit 150db at the dash Link to comment Share on other sites More sharing options...
Dd9515 king Posted May 10, 2013 Report Share Posted May 10, 2013 If you havent built a box yet. Try to do 1 cbft per woofer then port area like crazy. On spl you want a lot of port area. DD's love port area in the first place so they need a ton. Link to comment Share on other sites More sharing options...
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