bassrace Posted May 7, 2011 Report Share Posted May 7, 2011 Im not sure how to calculate aeroport area per sqft i tried looking it up with no sucess someone with more knowledge with aeroports needs to chime in Quote 145.9@40hz 145.3@34hz big 3 X2 group 34 Deka Group 31 All 0/1 awg jl meta wire Alpine CDA 7894 Orion HCCA D5000 2 AQ HDC312's Crunch gpv1100.2 (for 6.5"s only) AQ pro audio 6.5" - 3 sets AQ supertweeters - 2 sets 2000 Slamry Link to comment Share on other sites More sharing options...
trjohnst Posted May 7, 2011 Author Report Share Posted May 7, 2011 So why is it that more ports need longer lengths? Quote 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
bassrace Posted May 7, 2011 Report Share Posted May 7, 2011 Its all about the tuning but im not sure technically why. Quote 145.9@40hz 145.3@34hz big 3 X2 group 34 Deka Group 31 All 0/1 awg jl meta wire Alpine CDA 7894 Orion HCCA D5000 2 AQ HDC312's Crunch gpv1100.2 (for 6.5"s only) AQ pro audio 6.5" - 3 sets AQ supertweeters - 2 sets 2000 Slamry Link to comment Share on other sites More sharing options...
94retta(219) Posted May 7, 2011 Report Share Posted May 7, 2011 So why is it that more ports need longer lengths? Long storie short its to align sound waves. Quote BUILD LOG Link to comment Share on other sites More sharing options...
trjohnst Posted May 7, 2011 Author Report Share Posted May 7, 2011 So I guess I can do 2 4" flanged ports, but do i leave the flange on it inside the box or not? or does it depend? And I'm hoping this will make a big difference in SPL Quote 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
bassrace Posted May 7, 2011 Report Share Posted May 7, 2011 The flared end would stay outside the box if the ports are going to be internal but if they will be external then the flared side would be inside the box. Seal it real good too Quote 145.9@40hz 145.3@34hz big 3 X2 group 34 Deka Group 31 All 0/1 awg jl meta wire Alpine CDA 7894 Orion HCCA D5000 2 AQ HDC312's Crunch gpv1100.2 (for 6.5"s only) AQ pro audio 6.5" - 3 sets AQ supertweeters - 2 sets 2000 Slamry Link to comment Share on other sites More sharing options...
trjohnst Posted May 7, 2011 Author Report Share Posted May 7, 2011 The flared end would stay outside the box if the ports are going to be internal but if they will be external then the flared side would be inside the box. Seal it real good too Where do I start measuring the 10.35 inches at? Where it actually exits the wood on the inside? Quote 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
bassrace Posted May 7, 2011 Report Share Posted May 7, 2011 You would just measure the port itself. Quote 145.9@40hz 145.3@34hz big 3 X2 group 34 Deka Group 31 All 0/1 awg jl meta wire Alpine CDA 7894 Orion HCCA D5000 2 AQ HDC312's Crunch gpv1100.2 (for 6.5"s only) AQ pro audio 6.5" - 3 sets AQ supertweeters - 2 sets 2000 Slamry Link to comment Share on other sites More sharing options...
trjohnst Posted May 7, 2011 Author Report Share Posted May 7, 2011 You would just measure the port itself. Starting at the end of the flange? So that would be from the outside of the box pretty much. Would it matter which side of the box to put it on since the 15 would not be on the center, either left or right, so where would I put the ports? Same side as the sub or opposite side? Quote 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
bassrace Posted May 7, 2011 Report Share Posted May 7, 2011 Not the opposite side. Anywhere other. But as the port measuring just measure by itself the whole port and flare included Quote 145.9@40hz 145.3@34hz big 3 X2 group 34 Deka Group 31 All 0/1 awg jl meta wire Alpine CDA 7894 Orion HCCA D5000 2 AQ HDC312's Crunch gpv1100.2 (for 6.5"s only) AQ pro audio 6.5" - 3 sets AQ supertweeters - 2 sets 2000 Slamry Link to comment Share on other sites More sharing options...
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