pittross Posted December 23, 2011 Report Share Posted December 23, 2011 what should i tune my box to when i build it . 4 15 type r Quote Link to comment Share on other sites More sharing options...
Joe X Posted December 23, 2011 Report Share Posted December 23, 2011 9cuft@30Hz port area should be 90 sqin, it will be a huge box! Quote Link to comment Share on other sites More sharing options...
fmedina Posted December 23, 2011 Report Share Posted December 23, 2011 32-35 should be nice. if you need help on a design shoot me a pm. Quote Link to comment Share on other sites More sharing options...
pa-pa-platypus Posted December 23, 2011 Report Share Posted December 23, 2011 9cuft@30Hz port area should be 90 sqin, it will be a huge box! 10 sq inches of port per cube... wow but 32-35 is good for daily like fmedina said and box will also vary with power you plan to run Quote This isn't teeball. YOU DO NOT GET A TROPHY JUST BECAUSE YOU SHOW UP. Put the work in and then maybe get the respect when it has been earned 151.6 with single 12 at 41 hz 153.2 with 2 12's at 43 hz power: dd m4 Link to comment Share on other sites More sharing options...
Joe X Posted December 23, 2011 Report Share Posted December 23, 2011 (edited) 9cuft@30Hz port area should be 90 sqin, it will be a huge box! 10 sq inches of port per cube... wow but 32-35 is good for daily like fmedina said and box will also vary with power you plan to run I know it's 12-16 but I went by the Alpine manual multiply Vb x 4 and Port area X4, I mean I am hoping alpine knows what they are doing.. right??? Also they suggest to tune to 30Hz look it up... Edited December 23, 2011 by Joe X Quote Link to comment Share on other sites More sharing options...
FroznBeavrBALLs Posted December 23, 2011 Report Share Posted December 23, 2011 tune to around 16hz Quote 2 DC 12" lvl 4s 1 DC 1.2k XS Power S3400 big 3 Alll KNU wire Pioneer HU cheapo Legacy coaxes (just for now) http://www.stevemead...n-sentra-build/ Link to comment Share on other sites More sharing options...
Sheena Posted December 23, 2011 Report Share Posted December 23, 2011 tune to around 16hz lmao. thats pretty funny Quote 09 Civic EX KDC-X395 (2) SKAR Audio VVX-12 Skar Audio SK-1500.1 4 cu ft @32 (new box and more port soon) Firing Forward not sealed off Stock 80 Amp Alt Big 3 In 1/0 Knu 2 Runs To The Back 1 Pos 1 Neg In 1/0 Knu DD-1'd 13.8v drop Link to comment Share on other sites More sharing options...
pa-pa-platypus Posted December 23, 2011 Report Share Posted December 23, 2011 9cuft@30Hz port area should be 90 sqin, it will be a huge box! 10 sq inches of port per cube... wow but 32-35 is good for daily like fmedina said and box will also vary with power you plan to run I know it's 12-16 but I went by the Alpine manual multiply Vb x 4 and Port area X4, I mean I am hoping alpine knows what they are doing.. right??? Also they suggest to tune to 30Hz look it up... ok so where did you get 90sq inches of port from? im confused here Quote This isn't teeball. YOU DO NOT GET A TROPHY JUST BECAUSE YOU SHOW UP. Put the work in and then maybe get the respect when it has been earned 151.6 with single 12 at 41 hz 153.2 with 2 12's at 43 hz power: dd m4 Link to comment Share on other sites More sharing options...
Joe X Posted December 23, 2011 Report Share Posted December 23, 2011 (edited) 9cuft@30Hz port area should be 90 sqin, it will be a huge box! 10 sq inches of port per cube... wow but 32-35 is good for daily like fmedina said and box will also vary with power you plan to run I know it's 12-16 but I went by the Alpine manual multiply Vb x 4 and Port area X4, I mean I am hoping alpine knows what they are doing.. right??? Also they suggest to tune to 30Hz look it up... ok so where did you get 90sq inches of port from? im confused here Download SWR-1542D.pdf from somewhere look ay optimum ported enclosure and find that the recommended vent area per sub is 22.5 multiply that x 4 and you get 90 sqin, of course you have to calculate the lenght by formula. Edited December 23, 2011 by Joe X Quote Link to comment Share on other sites More sharing options...
pa-pa-platypus Posted December 23, 2011 Report Share Posted December 23, 2011 youre right it does that..i still would give them more port area than that but thats just my opinion Quote This isn't teeball. YOU DO NOT GET A TROPHY JUST BECAUSE YOU SHOW UP. Put the work in and then maybe get the respect when it has been earned 151.6 with single 12 at 41 hz 153.2 with 2 12's at 43 hz power: dd m4 Link to comment Share on other sites More sharing options...
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