SnowDrifter Posted July 20, 2013 Report Posted July 20, 2013 if i add more sq inches port area per foot like 18sq and i leave it 40hz i still have port noise? Stop. Port noise or not, the issue is that you won't be able to play that low at any audible level. The port will be out of phase with the sub and you won't get any output. Adding more port won't fix that If you want good meter scores and low notes, try playing around with a 6th or something. You'll be sacrificing quite a bit of space though. ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444
Bradprobert Posted July 20, 2013 Report Posted July 20, 2013 if i add more sq inches port area per foot like 18sq and i leave it 40hz i still have port noise? edit: ninja'd by snowdrifter! I would build another box with interchangeable ports. One port tuned to the peak of the car and the other tuned for daily playing(in the low 30's). [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . .
vw passat Posted July 20, 2013 Author Report Posted July 20, 2013 how can i make one with changeable port pls? is a good idea
Bradprobert Posted July 20, 2013 Report Posted July 20, 2013 The easiest would be to use areo ports. [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . .
vw passat Posted July 20, 2013 Author Report Posted July 20, 2013 how much port area per foot i need for my 15'' and can i make a box slot port with changeable port
Bradprobert Posted July 20, 2013 Report Posted July 20, 2013 How much power are you running? [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . .
Bradprobert Posted July 20, 2013 Report Posted July 20, 2013 Then stay closer to the 14-16 range. [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . .
vw passat Posted July 20, 2013 Author Report Posted July 20, 2013 wich sq is the best? sry im asking but i dont know nothing tx
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