AndriusLT Posted January 5, 2018 Report Share Posted January 5, 2018 Hello, I am making a dual 12 inch sub box with one square port and I wanted to ask how should i measure the port pic: Correct me if am wrong at measuring port in the picture. Link to comment Share on other sites More sharing options...
ckeeler11 Posted January 5, 2018 Report Share Posted January 5, 2018 At the "T" the port width will be half the width it is going back. Also you divide the remaining port length between the 2 arms. Hope that make sense. Link to comment Share on other sites More sharing options...
AndriusLT Posted January 8, 2018 Author Report Share Posted January 8, 2018 It would be nice if you could explain further or maybe show me on the picture? Link to comment Share on other sites More sharing options...
ckeeler11 Posted January 8, 2018 Report Share Posted January 8, 2018 Okay your port is 70 cm total length. At the "T" where you show length of 32 cm. that 32 should be divided between the the 2 "T" pieces so each would be 16 cm not 32 total all the way across. Also whatever the width is for the38 cm part of the port will be halved when the port splits Link to comment Share on other sites More sharing options...
WalledSonic Posted January 8, 2018 Report Share Posted January 8, 2018 1 hour ago, AndriusLT said: It would be nice if you could explain further or maybe show me on the picture? Please show the width of the ports Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
WalledSonic Posted January 8, 2018 Report Share Posted January 8, 2018 The 32cm sections may not contribute to the overall port length if their combined cross sectional area is larger than the cross sectional area of the 38cm section. Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
AndriusLT Posted January 8, 2018 Author Report Share Posted January 8, 2018 I wanted to ask if it is possible to make angled faced box with round port? Am trying to make a ski pass sub so all the bass would get in the cabin (It would fit perfectly with the rear seats). If it is possible how should i measure the port length with 2 tubes? (Changed from centimeters to inches so you guys could understand better). Link to comment Share on other sites More sharing options...
ckeeler11 Posted January 8, 2018 Report Share Posted January 8, 2018 How much power? Link to comment Share on other sites More sharing options...
AndriusLT Posted January 8, 2018 Author Report Share Posted January 8, 2018 Amp - Pioneer GM-D9601 (2 ohm 800W so / 2 = 400W RMS) Subs - 2 x JBL GT5-12 (275W RMS) Link to comment Share on other sites More sharing options...
Triticum Agricolam Posted January 8, 2018 Report Share Posted January 8, 2018 1 hour ago, AndriusLT said: Amp - Pioneer GM-D9601 (2 ohm 800W so / 2 = 400W RMS) Subs - 2 x JBL GT5-12 (275W RMS) You are going to have a hard time fitting large enough round ports when they are mounted on the front like that. I'd go with a slot port. "Nothing prevents people from knowing the truth more than the belief they already know it.""Making bass is easy, making music is the hard part."Builds: Link to comment Share on other sites More sharing options...
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