sqsux Posted May 6, 2011 Report Share Posted May 6, 2011 really guys? thats 6.28 square inches of port per cubic foot if the box is 2 cubes. i wouldnt ever build a box with such little port. will it work? sure. i mean prefabs work after all. they just suck. hifonics, you ask a new question every day. dont start giving advice before you know what you are doing. how are you getting that with no length or tuning frequency? or did i miss something Quote Start out boxy, shape as you move along. Dc Audio Team Fur Link to comment Share on other sites More sharing options...
skittlesRgood Posted May 6, 2011 Report Share Posted May 6, 2011 (edited) really guys? thats 6.28 square inches of port per cubic foot if the box is 2 cubes. i wouldnt ever build a box with such little port. will it work? sure. i mean prefabs work after all. they just suck. hifonics, you ask a new question every day. dont start giving advice before you know what you are doing. how are you getting that with no length or tuning frequency? or did i miss something cause length means nothing when measuring the area of a circle. Edited May 6, 2011 by skittlesRgood Quote If I answered you in a well mannered, informative way, you asked a good question or had a good attitude. If I was an asshole, you asked a stupid question or you had a fucktard attitude... or I was in a bad mood. Team BassickHU: Pioneer AVIC Z110Front: Peerless SLS 6.5", Peerless HDS 4", Rainbow tweeter - running activeAmp: JL HD600/4 and DC 4 channel (bridged to midbass)Processor: JBL MS-8Subs: 2x 12" AA MayhemsAmp: DC 3kElectrical: DC power 270xp alt. 1/0 big 4. XSpower D3400 and six D680s. http://www.stevemeadedesigns.com/board/topic/121795-29-update-the-buick-is-getting-a-rebuild/ Top career scores: DBdrag 151.7 MECA SQ 82.25My SOTM build Yeah. im pretty sure they dont warranty retarded people. Link to comment Share on other sites More sharing options...
ALPINE408 Posted May 6, 2011 Report Share Posted May 6, 2011 i used 2 4 inch ports for 4 10's. each pair of 10's had there own chamber with 1 4 inch port why can't it be used for a single 12? oh and they were shitty 10's still hitting 146 dbs Quote Have you ever had your woofers blown? Link to comment Share on other sites More sharing options...
matt402 Posted May 6, 2011 Report Share Posted May 6, 2011 area NOT volume... . Quote Link to comment Share on other sites More sharing options...
sqsux Posted May 6, 2011 Report Share Posted May 6, 2011 really guys? thats 6.28 square inches of port per cubic foot if the box is 2 cubes. i wouldnt ever build a box with such little port. will it work? sure. i mean prefabs work after all. they just suck. hifonics, you ask a new question every day. dont start giving advice before you know what you are doing. how are you getting that with no length or tuning frequency? or did i miss something cause length means nothing when measuring the area of a circle. ................I'm going back to geometry, because I obviously didn't pay attention. Quote Start out boxy, shape as you move along. Dc Audio Team Fur Link to comment Share on other sites More sharing options...
White Lightning Posted May 6, 2011 Report Share Posted May 6, 2011 I have 4" pvc pipe for my tuning ports ... no problem ... Quote Kenwood / HELIX / Linear Power (For The Love Of Music) / Brutal Sounds / OverKill Electric Co Questions About Sound Quality ?? Try Here ... Sound Quality, What does it REALLY mean ?? SMD SOTM Winner "White Lightning" 1997 GMT400 Chevy Silverado "The Green Dickle" 1994 GMT400 Chevy "Phantom Dually" Randal's 2007 Chevy Avalanche (we haven't named this one yet) Dylan's "Brutal" 17 Chevy Cruze RS Hatch Link to comment Share on other sites More sharing options...
bumonskateboard6 Posted May 6, 2011 Report Share Posted May 6, 2011 (edited) Yes you can use a 4 inch port. The reason people use bigger ports is the smaller the diameter (regardless of the length) the more your port will sound like a whistle. Edited May 6, 2011 by bumonskateboard6 Quote Current Systems: 2011 BMW 335i Hertz HDP1 DC LVL3 12" Full Carbon Fiber 2002 Acura TlKenwood DNX9980HD2 DCLVL4 12" Subs with LVL5 Parts D.7 CoilsDC 3.5kHertz HSK-165 up front HCX-165 RearHertz HDP4 AmpDC Power Engineering 260 Amp AltBig 3 and amp powered with KNU 1/0XS Power D2400 Up Front i pulled out my dick in class many of times and had it shown. get over it bitch...stupid open legged hairy beavered bitch... going over rms = smaller box, under rms = bigger box... Low voltage doesn't blow amps. That's a myth. A router that does the sub holes makes rounded edges also? Link to comment Share on other sites More sharing options...
ISO Posted May 6, 2011 Report Share Posted May 6, 2011 A 4 inch diameter port should be fine with a 12 inch sub. Quote Isobaric - Refers to the practice of coupling two drivers together to make them act as one. "Giving up doesn't always mean you are weak; sometimes it means that you are strong enough to let go." Insanity: doing the same thing over and over again and expecting different results. The Destruction of a person builds character. Link to comment Share on other sites More sharing options...
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