Berto Posted January 21, 2011 Author Report Share Posted January 21, 2011 Why do people continue to worry about how much port area there is per cubic foot???? They are NOT related! because not everyone knows what you do not being a smart ass...being serious lol. imo it's a safer to have that than to have people blindy make port area and hope it works. i've seen people ask me about boxes that had 5 sq inches or less for big boxes. and no matter what i think that just won't work I want to know what he knows. I wouldn't mind just knowing the port area to cubic foot ratio either though. Quote TEAM FLEX ISSUES Car: 1985 Oldsmobile Delta 88 Royal 24" Rims HU: 7" Carputer, Planet Audio EQ, iPhone. Coax: T3 Audio 4" speakers Subs: 2x 18" T3 Audio TSNS (walled) Sub Amp: DC 9k SOON TO COME T3 Audio 6x9s MB Quarts 6.5" comp set MAYBE ADDED 2nd DC 9k Link to comment Share on other sites More sharing options...
bkolfo4 Posted January 21, 2011 Report Share Posted January 21, 2011 Like I have said before, it normally works as a gross estimate, but you suspect someone is creating a design with the wrong port area, the correct questions to ask would be: what driver are you using? How much power? Tuning frequency? But all I ever see now is "that is only 8 sqin per cuft, you need at least 12". Sorry, I should have read and resisted typing. . . :-) Quote Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz. Link to comment Share on other sites More sharing options...
Decaf Posted January 21, 2011 Report Share Posted January 21, 2011 (edited) win isd can help u determine vent speed lower u tune less port area u need more power more port simple guidelines, but its not suppose to be rocket science... just depends on ur goals Edited January 21, 2011 by Decaf Quote Link to comment Share on other sites More sharing options...
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