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View Full Version : how to stop ort noise



hawaiian5
08-19-2007, 01:39 AM
i just had a box built for me that has a big slot port. i still get port noise. the thing is, when the bas stops than i can hear the air. its like its being spitted out. the box is tuned to 45hz. how can i stop this without building a new box?. i was told by a friend that maybe its because the music i was listening to had a lower freq. than the box, so when the bass hits low, that it makes that noise. ( something like that lol.. not sue his exact words )...is this true? he told me that all i have to do is get a different chip or something for my audiocontrol, and it will cancell out or stop the port noise. can someone help?

sorry if u guys cant understand what im typing...lol...i just dont know how to word it..

Wkbdkid
08-19-2007, 01:43 AM
Any pics of port? An if its a daily driver why tunned to 45?

Qbenjamin
08-19-2007, 01:48 AM
Check the box for obvious leaks.

phantom240
08-19-2007, 01:50 AM
I vote leaks. Mine leaked after I first fired her up. Turned out I blew a small section of caulk out where I had messed up a cut. lol.

hawaiian5
08-19-2007, 01:59 AM
tuned to 45 just for the hell of it.lol. the sub is a massive audio dmx stage 2 12". its an spl sub that likes to be tuned high. i decided to get another box built and tuned to 45 just for the heck of it. its not installed yet, i just had the chance to hear it at the shop that built it for me. i checked to see if there was any visuall wholes or cracks, and there is nothing that i can see, but i cant hook it up either because im dong a whole different install again. ill try to get some pics up, my digi cam broke so i have to use a cell phone. if i can find the pc adapter...lol...but ill try to get some pics.

hawaiian5
08-19-2007, 02:11 AM
so can i stop it with the audio control thing?

phantom240
08-19-2007, 02:14 AM
Port dimensions?

hawaiian5
08-19-2007, 02:25 AM
lol...not even sure...lol. i figure ( just by looking at it )...3-4" wide and about 13-15" high. the port wall looks around 11-12 inches deep. all give or take. sorry, i dont have a tape measure at the moment. the guy at the shop said something like 50-52 something of port. not sure what exactly he said or ment. i can always have a new one rebuilt, but i'd rather not.

Death By Bass
08-19-2007, 02:27 AM
this thread is about as completely useless as you could get.

phantom240
08-19-2007, 02:58 AM
http://i5.photobucket.com/albums/y152/phantom240/wtf-1.jpg
http://i5.photobucket.com/albums/y152/phantom240/emofail.gif

Immacomputer
08-19-2007, 06:24 AM
lol make ur port lik biggr lol theysres chipz that lol make it less port noiselol cuz thats liek totilly logikal lol

How do you expect us to help when you can't answer a few questions?

Also, having the port tuned that high will cause everything to sound funny below 40hz. Your friend is probably correct.

And how can you say your sub likes to be tuned high when you think there could be a chip to stop port noise? Wow... :rolleyes:

phantom240
08-19-2007, 12:20 PM
ch1pz? liek know wai!

DBfan187
08-19-2007, 12:26 PM
I got mad DEEBEEZZ with mah ort noiz!!!

tru_44
08-19-2007, 12:43 PM
how many cubes is the box?

THUMPPER
08-19-2007, 01:29 PM
port noise is caused by high port velosity....
there is no way to fix it with out rebuilding the enclosure
with the proper sized port to bring the port velosity down

I would also check for air leaks around the sub and all the
seems of the enclosure

IamDeMan
08-19-2007, 02:19 PM
Seeing how the tuning is high, I am betting the velocity and of course cone movement is tremendous below 40hz. Maybe try an SSF set fairly high(35 maybe) and see if that rectifies it. Of course then it will be a very narrow band SPL fart maker, but with that tuning it is obvious thats what you want. I am guessing this is what your friend was trying to explain.

phantom240
08-19-2007, 02:21 PM
Seeing how the tuning is high I am betting the velocity and of course cone movement is tremendous below 40hz. Maybe try an SSF set fairly high(35 maybe) and see if that rectifies it. Of course then it will be a very narrow band SPL fart maker, but with that tuning it is obvious thats what you want.

LOL SPL fart maker.
Genious.