reedal Posted May 17, 2015 Report Posted May 17, 2015 http://www.carstereo.com/help/Articles.cfm?id=31 Use the vent length calculator at the bottom. Plug in your gross volume, height and width of port (9.5x2.5) and tuning frequency and that will give you how long the port needs to be total. SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32
dsw422 Posted May 17, 2015 Author Report Posted May 17, 2015 Yes, I have done that... I'm just wondering if my figure for the depth average is correct 2014 Ford Focus SE Sedan Factory Sony 10 Speaker Sound System 1994 Ford Bronco Dual head unit (i kno) Sony door speakers Kenwood Rear Speakers Custom Center console in the works. will house an NVX NSW10" https://m.facebook.com/WinnsCustomCarAudio/
dsw422 Posted May 17, 2015 Author Report Posted May 17, 2015 ??? 2014 Ford Focus SE Sedan Factory Sony 10 Speaker Sound System 1994 Ford Bronco Dual head unit (i kno) Sony door speakers Kenwood Rear Speakers Custom Center console in the works. will house an NVX NSW10" https://m.facebook.com/WinnsCustomCarAudio/
firebirdude Posted May 17, 2015 Report Posted May 17, 2015 Any reason the box doesn't extend down into the Camaro's trunk? You should have thought about all this port business before you cut the first piece of wood....
reedal Posted May 17, 2015 Report Posted May 17, 2015 I don't understand how you got an average higher than any of the numbers you listed SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32
dsw422 Posted May 17, 2015 Author Report Posted May 17, 2015 I don't understand how you got an average higher than any of the numbers you listed In the link u gave, it said to averge the depth at top of port, and below.. to do average, you take the sum of them and divide by 2... My top depth is 7.25 and bottom depth is 16.65.. add those together u get 22.9 and divide by 2 is 11.45.. that is the average depth of the port.. The L part of the port is the inside piece which is parallel to the back wall.. I need a total port length of 15, so I'll need 3.55 length 2014 Ford Focus SE Sedan Factory Sony 10 Speaker Sound System 1994 Ford Bronco Dual head unit (i kno) Sony door speakers Kenwood Rear Speakers Custom Center console in the works. will house an NVX NSW10" https://m.facebook.com/WinnsCustomCarAudio/
dsw422 Posted May 17, 2015 Author Report Posted May 17, 2015 ??? Are my calculations correct?? 2014 Ford Focus SE Sedan Factory Sony 10 Speaker Sound System 1994 Ford Bronco Dual head unit (i kno) Sony door speakers Kenwood Rear Speakers Custom Center console in the works. will house an NVX NSW10" https://m.facebook.com/WinnsCustomCarAudio/
reedal Posted May 17, 2015 Report Posted May 17, 2015 It appears so. Those aren't the numbers you gave in your other post. That's why I said that. I am also curious as to why you didn't figure out port before building the box SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32
dsw422 Posted May 17, 2015 Author Report Posted May 17, 2015 It appears so. Those aren't the numbers you gave in your other post. That's why I said that. I am also curious as to why you didn't figure out port before building the box Ok good.. whew.. lol.. I thought I had it right.. I was going to use 2 3 Inch tubes out of the raised sections on the box.. but I calculated the wrong length and port area wasn't sufficient.. 2014 Ford Focus SE Sedan Factory Sony 10 Speaker Sound System 1994 Ford Bronco Dual head unit (i kno) Sony door speakers Kenwood Rear Speakers Custom Center console in the works. will house an NVX NSW10" https://m.facebook.com/WinnsCustomCarAudio/
reedal Posted May 17, 2015 Report Posted May 17, 2015 You should try using WinISD or a similar program to model what your port velocity will be with that box volume, tuning, and port volume and area. It's recommended to get it below 25m/s. You might find out you still don't have enough port area, possibly causing port noise and inefficiency SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32
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