jlh2003 Posted May 9, 2011 Report Posted May 9, 2011 already have a sa-12 on a 1200d.... upgrading to two sa-12's on a 2500d this week Problem is, would like to use aero ports and i've never used them neither has the guy who will be building my box(he is an SQ guy) car is a 06 honda civic so trunk box 2 sa-12's 2500d i'd like to tune to 35hz max dimensions 17x28x20 I played with the box builder software main issue is I'm unsure size number and length of aero port to use Some one please provide some guidance/ input Quote http://www.termpro.com/asp/competitorstats.asp?Competitor_ID=88276 AlphaDamp CLD Tiles - Get more sound deadening using less sound deadener http://www.secondskinaudio.com/products/AlphaDamp.php
dwright27 Posted May 9, 2011 Report Posted May 9, 2011 I'd use 12 - 14 square inches of port. Aeros are much more efficient then slot port so no need to have a huge port area. I prolly do around 3 - 4 cubes, with 50 or so square inches. 2 3" aero ports should work for you. Flare the ends, and call it a day. If my math is right ( pi x radius ^2 ) ( area of a circle ) then that's 28 square inches per port. Quote 2006 F-150 4 DC XL M2 18's Walled Daily Driver XS Power 4 DC 3.5kw Team DC Team S.P.L. Lot of Audio Technix and 1/0 DC Audio Dealer American Bass Dealer XS Power Dealer Audio Technix Dealer
dwright27 Posted May 9, 2011 Report Posted May 9, 2011 Size - 3" Number - 2 Length - just insert a length until you get desired tuning. Quote 2006 F-150 4 DC XL M2 18's Walled Daily Driver XS Power 4 DC 3.5kw Team DC Team S.P.L. Lot of Audio Technix and 1/0 DC Audio Dealer American Bass Dealer XS Power Dealer Audio Technix Dealer
jlh2003 Posted May 9, 2011 Author Report Posted May 9, 2011 using 2 3in aero's 6.5in long this is what i get dimensions 16x38x12 gross 3.22 port volume .06 port area 14.13 port per ft 4.47 net volume 3.16cu ft tuning 35.42 Quote http://www.termpro.com/asp/competitorstats.asp?Competitor_ID=88276 AlphaDamp CLD Tiles - Get more sound deadening using less sound deadener http://www.secondskinaudio.com/products/AlphaDamp.php
BeAlLsTaR13 Posted May 9, 2011 Report Posted May 9, 2011 (edited) I'd do closer to 4 cubes...those woofers like anything 4-5 cubes Edited May 9, 2011 by BeAlLsTaR13 Quote Team Sundown Audio**CURRENT** -- 2012 Scion tC Build Click Here **OLD** -- 2002 Pontiac Grand AM Build Click Herecheck them out, slap me a comment2002 Pontiac Grand AM SE 2.2l 4 cylinder ecotec.-------------------------------------------------------------------Head Unit - Alpine CDA-9887Subs - 2x Z 12 v.2s - v.3 + NS Soft partsAmplifier - Sundown Audio SAZ-3500DEnclosure - 3.33 Cubes tuned to 34.66hzFront Stage - JBL P660c 6.5" ComponentsRear Deck - Powerbass 4xl 6.5" Mid-RangeFront Stage Amplifier - Sundown Audio SAX-100.4DWires - Kicker Hyperflex 1/0, KnuKonceptz 1/0, Knu 4 and 8 Gauge, Kicker RCAsElectrical - 275 AMP DC Power H/O Alternator, XS Power S3400, XS Power D2700Videos - http://www.youtube.com/user/BeAILsTaR13-------------------------------------------------------------------
Eric B Posted May 13, 2011 Report Posted May 13, 2011 5 cubes with 1 6" aeroport tuned at 29hz is pretty awesome Quote 2007 Chevy HHR LT UNDER CONSTRUCTION 1st Place Loud N Low 2010 MWSPL Finals 3rd Place Xtreme 3 2010 MWSPL Finals
jlh2003 Posted May 13, 2011 Author Report Posted May 13, 2011 Ended up doing 3.5 after displacement with 3 4" aero's at 35hz Quote http://www.termpro.com/asp/competitorstats.asp?Competitor_ID=88276 AlphaDamp CLD Tiles - Get more sound deadening using less sound deadener http://www.secondskinaudio.com/products/AlphaDamp.php
Eric B Posted May 13, 2011 Report Posted May 13, 2011 Ended up doing 3.5 after displacement with 3 4" aero's at 35hz I think that it will have a very peaky response. Will get loud, but peaky. Quote 2007 Chevy HHR LT UNDER CONSTRUCTION 1st Place Loud N Low 2010 MWSPL Finals 3rd Place Xtreme 3 2010 MWSPL Finals
jlh2003 Posted May 13, 2011 Author Report Posted May 13, 2011 My other box for the single sa-12 was tuned at 35hz but square port and I loved how it sounded... Why do you say peaky? Bc of the aero port? Quote http://www.termpro.com/asp/competitorstats.asp?Competitor_ID=88276 AlphaDamp CLD Tiles - Get more sound deadening using less sound deadener http://www.secondskinaudio.com/products/AlphaDamp.php
Team Nemesis-DJ Posted May 14, 2011 Report Posted May 14, 2011 That should perform quite well .... Quote
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