MADVIBES Posted December 13, 2017 Report Posted December 13, 2017 the math is simple, the construction is a little tricky DB DRAG PSYCHLONE PRO 156.3 30 SECOND AVERAGE FO MAX AT 26HZ LEGAL DASH DRIVER DOOR OPEN 158.0@30 HZ MY BEST SO FAR, HOPEFULLY A 160 COME FEBUARY. 156.9@26hz 158.0@30hz
Jhunt94 Posted December 13, 2017 Author Report Posted December 13, 2017 I think I remember a thread on here that was a discussion about an "easy" way to do it 2007 Ford F-150 Reg. Cab. Flareside250 Mechman AlternatorSky High Car Audio Big 3 XS Power D3400Rockford Fosgate 1/0 amp kitRockford Fosgate T1500-1bdcpRockford Fosgate T400-4DC Audio Lvl 4 12"Rockford Fosgate Punch 6.5" componentRockford Fosgate Punch 6x8Pioneer AVH-P2300DVDSMD Volt Meter
WalledSonic Posted December 13, 2017 Report Posted December 13, 2017 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
MADVIBES Posted December 13, 2017 Report Posted December 13, 2017 divide the speed of sound by the frequency you want it tuned to, then divide that number by 12" then divide that number by 4 to give you a quarter wave length in inches, make the port area the same as your cone area the entire length. thats basically it in a nutshell. DB DRAG PSYCHLONE PRO 156.3 30 SECOND AVERAGE FO MAX AT 26HZ LEGAL DASH DRIVER DOOR OPEN 158.0@30 HZ MY BEST SO FAR, HOPEFULLY A 160 COME FEBUARY. 156.9@26hz 158.0@30hz
Jhunt94 Posted December 13, 2017 Author Report Posted December 13, 2017 26 minutes ago, MADVIBES said: divide the speed of sound by the frequency you want it tuned to, then divide that number by 12" then divide that number by 4 to give you a quarter wave length in inches, make the port area the same as your cone area the entire length. thats basically it in a nutshell. not 100% sure of the frequency I want to tune it to, on sundowns website I believe they recommend 32 Hz. Also would the box being a wedge shape make it more difficult? 2007 Ford F-150 Reg. Cab. Flareside250 Mechman AlternatorSky High Car Audio Big 3 XS Power D3400Rockford Fosgate 1/0 amp kitRockford Fosgate T1500-1bdcpRockford Fosgate T400-4DC Audio Lvl 4 12"Rockford Fosgate Punch 6.5" componentRockford Fosgate Punch 6x8Pioneer AVH-P2300DVDSMD Volt Meter
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