is the sub blown or the box?

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=12158
Printed Date: June 09, 2024 at 1:27 PM

Topic: is the sub blown or the box?

Posted By: magcmedcin
Subject: is the sub blown or the box?
Date Posted: April 13, 2003 at 6:01 PM

i got a new box and one of the subs had this anoying flutering sound to it. Kind of like when a sub i blown. But my question comes i can run just straight treble to it and it sound's fine.

so i'm not sure if t's the sub the box or maybe the wiring? Any help would be apreciated.

Replies:

Posted By: donkason
Date Posted: April 13, 2003 at 6:41 PM

Pull it out of the box and run it free air see if it still sounds poorly. Don't crank it to hard because if you turn a sub up out of a box it is very hard on it and can ruin it. If it still sounds crappy it is problably your amp or your speaker. Check your positive and negative wires on your speaker and amp just to make sure everything matches up. What kind of sub, what is the box made out of, and what is the volume of the box?

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J. Mike Perkins

Posted By: esmith69
Date Posted: April 13, 2003 at 9:18 PM

Use a digital multimeter to test for resistance on the sub's wiring terminals. You should get something close to the sub's rated impedence (usually stated on the back of the magnet). If not, the sub is most likely--but not necessarily--blown. There are a couple more in depth ways to test but this is the simplest and usually the most accurate.

Posted By: magcmedcin
Date Posted: April 14, 2003 at 10:44 AM

it's an ma audio box with subs premade so the volume size should be right. My friend say's it might be the wiring. it's a tri-sub box and i have no idea how it's suppsed to be wired. I tried taking the sub out and it still makes the sound so i guess it's blown. thanks for the help. Good thing it's still under waranty

Posted By: bberman1
Date Posted: April 14, 2003 at 11:57 AM

Is that the only sub that sounds that way?

Posted By: wvsquirrel
Date Posted: April 14, 2003 at 2:57 PM

If you can describe how the wiring looks, we may be able to explain it to you, or offer suggestions on re-wiring it for better performance. I also didn't see what amp you're using to run the subs, or what subs your using. Manufactures and model numbers can go a long way posted_image

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Squirrel
"No more Cpt. Kirk chit chat"
If its too loud, then you're too old
Donate to the12volt.com

Posted By: wvsquirrel
Date Posted: April 14, 2003 at 2:59 PM

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Squirrel
"No more Cpt. Kirk chit chat"
If its too loud, then you're too old
Donate to the12volt.com

Posted By: speedwayaudio1
Date Posted: April 14, 2003 at 3:08 PM

try the sub in one of the other holes see how it sounds then.

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Big Dave

Posted By: magcmedcin
Date Posted: April 14, 2003 at 8:36 PM

it is just one sub.

my set up is a one farad cap
ma audio 1600 watt amp 6 channel model# M1680i
the box is a try sub box two sealed and one bandpass model# mbbp10

well the subs are duel voice coil all set up at 4ohms. In the back their is only one jack for + @ -. the sub i have a problem with only has one positive wire and onenegativ then one wire runing from one terminal on the sub onto the other terminal of the same sub. the rest of the wiring i can't even begin to explain.

Posted By: speedwayaudio1
Date Posted: April 14, 2003 at 10:12 PM

take it to shop to check out. you need some live help

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Big Dave