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Sub is making wierd noise

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=69872
Printed Date: May 18, 2024 at 8:03 PM


Topic: Sub is making wierd noise

Posted By: appraiserman
Subject: Sub is making wierd noise
Date Posted: January 02, 2006 at 7:14 PM

Hello all. First timer here. Got a question maybe someone can answer. Heres a little background first.

What I'm running:

KENWOOD KDC-MP5028

A jeep limited cherokee stock infinity amp

4 sony 6.5" door speakers

a JBL GTO600.1

2-diamond audio CM310D4 (10" dual 4 ohm)

1-MTX 15" single 4 ohm

1-1 farad capacitor

Power and Ground are all 4 gauge from battery to cap and cap to ground. From cap I have 2-8 gauge wires to the amp. From the Ground also is 2-8 gauge to the amp. Lightning Audio RCA's. Decent speaker wire. I did the install pretty solid making sure everything was wrapped up.  

Problem is this. One of the Diamond Audio 10"s makes a noise like, well, ......... When its not hooked up and you move the cone/whatever thingy up and down, it makes a few wierd clicks, kinda like the end of a wire is hitting it somewhere. The other sub makes a similar click, but only 1. Any idea's what it could be and how I can fix it? I just bought these sub's used and I'm hoping I wasn't burned. Hit me back via e-mail or this forum if you have information. Thanks.




Replies:

Posted By: forbidden
Date Posted: January 02, 2006 at 7:39 PM
Sounds like you got burned. Subs are the single most abused part of a stereo system. If they are making any type of noise, ie: it clicks when the cone is pushed, they are fooked.

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Top Secret, I can tell you but then my wife will kill me.




Posted By: godblessdremil
Date Posted: January 02, 2006 at 7:47 PM
^^^Nicley put, ya sounds like they are crap




Posted By: coppellstereo
Date Posted: January 02, 2006 at 8:41 PM
but what about when they are actually running?

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Posted By: darthness
Date Posted: January 02, 2006 at 9:00 PM
why are you running 2 diamond 10's with the mtx 15"

just run the 15 since you already blew (or bought bad subs) the diamond 10's. beter yet, get the diamond subs reconed and then run them instead of the mtx 15s.




Posted By: appraiserman
Date Posted: January 02, 2006 at 10:02 PM

When running they make the noise just much faster. It almost sounds as if a wire from the coil is hanging somewhere. The one fifteen isn't quite loud enough for me. I guess I'll get on Ebay and track down another mtx 15" 4500. 





Posted By: hex0rz
Date Posted: January 03, 2006 at 12:50 AM
Do two 12" MTX 7500's. $235 for a pair is what I struck. Damn, they pound sooo hard. I'm gonna go deaf...

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Vehicle: Mazda B2200 1989 X-Cab
Audio System:
1. (2) MTX TA3401
2. (2) MTX Thunder 7500
3. (1) MTX TA3202
4. Eclipse Fujitsuten SC8264 Component series
5. Pioneer Premier DEH-P770MP




Posted By: appraiserman
Date Posted: January 03, 2006 at 3:13 PM
I guess the wierd thing is this. They pound. One of em just makes a wierd noise like a vibration noise inside the speaker.




Posted By: vqman
Date Posted: January 14, 2006 at 1:40 AM

I had this same problem with my diamonds, and it's really not a problem at all.

Take the sub out of the box, there is probably still a sticker over the whole on the sub magnet...this will fix your problem and shouldn't affect the future effectiveness of the speaker. My M6 10's thumped great after I took off the pesky sticker covering the hole in the magnet...

I don't know why diamond does this...buy anyway..

-vq



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1995 740iL
1999 M3




Posted By: kirktcashalini
Date Posted: January 14, 2006 at 9:35 AM
yeah.. vq im pretty sure its probably not sticker removal.

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99 Blazer LT.   Yellow Top. Big 3. Infinity Kappa Speakers All Around. Jensen CD/DVD flip out. 2 Infinity Kappa Perfect 12DVQs powered by a Alpine PDX600.1 (in one custom box, building a FG box)




Posted By: vqman
Date Posted: January 15, 2006 at 8:35 PM

kirktcashalini wrote:

yeah.. vq im pretty sure its probably not sticker removal.
I never would have thought it either..having heard the sound myelf. I couldn't imagine something like stickers on the back of the magnet. But trust me, the holes in the back of the magnet are functional and it keeps the sub from working right. They'll hit harder when he gets the stickers off.

I had the same symptoms, it sounded like something was loose or a voice coil was acting stupid, and once I got the stickers off, they sounded great.

This isn't my first set of speakers man...just have the guy take the speakers out of the enclosure, I'm sure he'll be surprised to see the stickers, and when he gets them off it will sound a lot better.

Heck, he could even contact Diamond and I'm sure a tech representative will tell him it's a common install mistake.

https://www.diamondaudio.com/contactUs/index.cfm?page=contactHome&to=4



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1995 740iL
1999 M3




Posted By: vqman
Date Posted: January 15, 2006 at 8:38 PM

where's the damn "edit" button??

I just got through re-reading his post, I didn't realize he bought them used and that it's making the noise when he's doesn't have them powered up and he moves the cone..

definately not a sticker issue....



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1995 740iL
1999 M3





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