SnowDrifter Posted July 20, 2013 Report Posted July 20, 2013 Look at your dimensions. 3.586in for the port width. Are you on the metric system and using a conversion or something? ~~~~~~~~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
SnowDrifter Posted July 20, 2013 Report Posted July 20, 2013 Ahhhh ok. Never mind thenFor If you are playing in the high 20s, you want to tune closer to 30hz. That will give you the low end extension you are looking for. ~~~~~~~~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
vw passat Posted July 20, 2013 Author Report Posted July 20, 2013 is it good for the meter to tune 30hz?
SnowDrifter Posted July 20, 2013 Report Posted July 20, 2013 DoubtfulIs this for metering purposes or for musical purposes? ~~~~~~~~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
vw passat Posted July 20, 2013 Author Report Posted July 20, 2013 meter and daily i just want to hit the 139.9 in bass race
bkolfo4 Posted July 20, 2013 Report Posted July 20, 2013 If you are tuned at 40, anything below 30ish is just air flowing in and out of a tube. If you have port noise above 37-38 Hz, then complain. Without knowing what sub you are running, it is impossible to know if you have enough port area. And the last point - port area does NOT determine how much bandwidth you get, unless the port is so small that it changes the linear operation of the port at high volume. Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz.
vw passat Posted July 20, 2013 Author Report Posted July 20, 2013 http://www.spldynamics.fi/products/subwoofers/XTR-series/xtr-380d2s-e.html this is my sub and yes that is my problem that anything below 30ish is just air flowing in and out of a tube. and i dont have port noise at 37-38hz
Amart88 Posted July 20, 2013 Report Posted July 20, 2013 http://www.spldynamics.fi/products/subwoofers/XTR-series/xtr-380d2s-e.html this is my sub and yes that is my problem that anything below 30ish is just air flowing in and out of a tube. and i dont have port noise at 37-38hz Man, There is only so much you can do tuned that high. I had a box for 2 15's tuned to 39hz and the Lows were terrible and created a "port noise" sound because anything in the low 30's was way below tuning. At the end of the day, I got rid of it because it was not going to get any better without some alteration. My 2005 s10 blazer build. 4 zcon 18's walled.
vw passat Posted July 20, 2013 Author 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?
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