sub box sucking air
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=114835
Printed Date: May 16, 2025 at 2:03 AM
Topic: sub box sucking air
Posted By: diggit44
Subject: sub box sucking air
Date Posted: July 03, 2009 at 4:24 PM
i made a dual slot ported sub box and it is suckin air and i chacked the nubs there wired right the chambers are conected the port is 2.5'' wide by 14'' high and and 7'' long with a 3'' baffle on each side
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1995 jeep wrangler 4X4
Replies:
Posted By: diggit44
Date Posted: July 03, 2009 at 5:05 PM
diggit44 wrote:
i made a dual slot ported sub box and it is suckin air and i chacked the nubs there wired right the chambers are conected the port is 2.5'' wide by 14'' high and and 7'' long with a 3'' baffle on each side
heres a pic of the encloser
 ------------- 1995 jeep wrangler 4X4
Posted By: DYohn
Date Posted: July 03, 2009 at 6:20 PM
What do you mean by "sucking air"? If you mean port noise, that generally indicates the opening is too small. What is your target tuning and what's the enclosure volume? ------------- Support the12volt.com
Posted By: diggit44
Date Posted: July 03, 2009 at 6:52 PM
DYohn] wrote:
What do you mean by "sucking air"? If you mean port noise, that generally indicates the opening is too small. What is your target tuning and what's the enclosure volume?
1.81 is the hole thing insted of pushing air out it is is suckig air in thats what it looks like inside ------------- 1995 jeep wrangler 4X4
Posted By: i am an idiot
Date Posted: July 03, 2009 at 7:42 PM
The port is sucking in and blowing out at a rate of 20 to 100 times a second. You can not see this. What exactly is going on that makes you think it is sucking air? Does it suck air if only one woofer is connected? When only one woofer is connected, does it make more bass than with the 2 of them playing?
Posted By: diggit44
Date Posted: July 03, 2009 at 8:37 PM
i am an idiot wrote:
The port is sucking in and blowing out at a rate of 20 to 100 times a second. You can not see this.
What exactly is going on that makes you think it is sucking air?
Does it suck air if only one woofer is connected? When only one woofer is connected, does it make more bass than with the 2 of them playing?
yes it still sucks air when only one is on and has less bass with one. i made this box cuz i wannted more bass and i got more but i didnt no how to make the port so i just winged it how do i get the deepest bass ------------- 1995 jeep wrangler 4X4
Posted By: thatfloorguy
Date Posted: July 03, 2009 at 8:45 PM
I think it is just the subs that are sucking but......
Posted By: thatfloorguy
Date Posted: July 03, 2009 at 8:47 PM
It looks like the screws on the outside face are like 2" in. Are they even hitting the side panels?
Posted By: diggit44
Date Posted: July 03, 2009 at 8:56 PM
thatfloorguy wrote:
It looks like the screws on the outside face are like 2" in. Are they even hitting the side panels?
there not 2'' there 1 1/4'' and yess it only 3/4'' melamine board ------------- 1995 jeep wrangler 4X4
Posted By: thatfloorguy
Date Posted: July 03, 2009 at 9:06 PM
Are the side panels set in to allow for that or are you screwing into nothing? You are probably leaking air.
Posted By: diggit44
Date Posted: July 03, 2009 at 9:10 PM
thatfloorguy wrote:
Are the side panels set in to allow for that or are you screwing into nothing? You are probably leaking air.
o yea the sides are inset 3/4'' in ------------- 1995 jeep wrangler 4X4
Posted By: i am an idiot
Date Posted: July 03, 2009 at 9:11 PM
He was not questioning the length of the screws, he was commenting on how far inward the screws are on the left and right of the box. Do you have the endcaps recessed a bit? 1.25 inch screws are a bit short. 1-5/8 would probably help out in the long run.
Posted By: diggit44
Date Posted: July 03, 2009 at 9:19 PM
i am an idiot wrote:
He was not questioning the length of the screws, he was commenting on how far inward the screws are on the left and right of the box. Do you have the endcaps recessed a bit?
1.25 inch screws are a bit short. 1-5/8 would probably help out in the long run.
yes thy are recessed i cant stand people that thik there box is the doodie and have the screws sticking out ------------- 1995 jeep wrangler 4X4
Posted By: DYohn
Date Posted: July 03, 2009 at 10:14 PM
diggit44 wrote:
i am an idiot wrote:
He was not questioning the length of the screws, he was commenting on how far inward the screws are on the left and right of the box. Do you have the endcaps recessed a bit? 1.25 inch screws are a bit short. 1-5/8 would probably help out in the long run.
yes thy are recessed i cant stand people that thik there box is the doodie and have the screws sticking out
I have no idea what that statement is supposed to mean... but at 1.81 cu-ft your enclosure seems way too small to me and your port looks like it would be tuned way too high, so I bet the sound you are hearing is port noise in too high a frequency band. I say your problems are being caused by incorrect enclosure design. By the way, air always flows both directions through a port, so "sucking in" or "blowing out" has no meaning because that's what they are supposed to do. ------------- Support the12volt.com
Posted By: diggit44
Date Posted: July 03, 2009 at 10:18 PM
DYohn] wrote:
diggit44 wrote:
i am an idiot wrote:
He was not questioning the length of the screws, he was commenting on how far inward the screws are on the left and right of the box. Do you have the endcaps recessed a bit?
1.25 inch screws are a bit short. 1-5/8 would probably help out in the long run.
yes thy are recessed i cant stand people that thik there box is the doodie and have the screws sticking out
I have no idea what that statement is supposed to mean... but at 1.81 cu-ft your enclosure seems way too small to me and your port looks like it would be tuned way too high, so I bet the sound you are hearing is port noise in too high a frequency band. I say your problems are being caused by incorrect enclosure design. By the way, air always flows both directions through a port, so "sucking in" or "blowing out" has no meaning because that's what they are supposed to do.
i sucks more than it blows. but i dont hear any thing i found this out i trew a gummy worm in the back and it was getting sucked in lol. ------------- 1995 jeep wrangler 4X4
Posted By: i am an idiot
Date Posted: July 03, 2009 at 10:26 PM
i am an idiot wrote:
The port is sucking in and blowing out at a rate of 20 to 100 times a second. You can not see this.
What exactly is going on that makes you think it is sucking air?
So it was the Gummy Worm that told you. Maybe he just wanted to rock, and he was crawling to the source of the rockin', or the Fresh Beats.
Have you set the Gummy Worm on the top of the box to see which way he goes without the air of the port to influence his path?
Is the car possibly parked on a slight incline and the bass is moving the worm, and maybe gravity is pulling him to the rear of the box? ------------- Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB
Posted By: DYohn
Date Posted: July 03, 2009 at 10:41 PM
Ah, I hate gummy worm bass. It sticks to my teeth. ------------- Support the12volt.com
Posted By: thatfloorguy
Date Posted: July 03, 2009 at 10:42 PM
I thought I was being......................course I am barely not a rook.
Posted By: thatfloorguy
Date Posted: July 03, 2009 at 11:30 PM
My apologies. I meant no disrespect.
Posted By: i am an idiot
Date Posted: July 03, 2009 at 11:37 PM
No need for apologies. I didn't even take it that way. I am sorry if for making you feel as though you needed to apologize. What are we even talking about. In order to not incriminate myself for being ........, I deleted that post.
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