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    Goldtaz1's Avatar
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    Sub is making a rattling noise??

    Hello guys, I'm a little stumped after building a box for a single Alpine Type X 12" subwoofer. The sub is making a fairly distinct rattle sound when transitioning between notes. The noise becomes more pronounced as the volume increases. I am going to pull the sub tomorrow to check it out thoroughly but I'm afraid I may be spinning my wheels with that since the sub is brand new. Any thoughts as to what the rattling noise might be???



    HU: Sony Xplod MP80
    Highs and Mids:
    Infinity Kappa series 63.5i
    Infinity Kappa series 572.5cf

    Subs: (3) Incriminator Audio DP 15's
    Sub amps: (2) Crunch GP3000D Pro's

    This one is ridiculously LOUD !

    References: Bamaboy, AZ-ss, 9512ds, and DRCKISS




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    Re: Sub is making a rattling noise??

    I thought I had a sub problem, but turned out to be the amp.




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    Re: Sub is making a rattling noise??

    It could be tinsel slapping. (when the tinsel leads to the coil hit the cone)
    Or, it could be the coil rubbing...
    Or it could be bottoming out.

    But "rattle" makes me think tinsel slap. I thought I had a tinsel slap problem with my mid-ranges. They told me to look for dents in the cone right above the tinsels. If the tinsels are slapping, that's where they'd hit.

    P.S. Don't free-air the sub. Not at volumes more than like 5%.



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    Re: Sub is making a rattling noise??

    u sure its not something in your car?



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    Re: Sub is making a rattling noise??

    Quote Originally Posted by Blazin_Jason View Post
    I thought I had a sub problem, but turned out to be the amp.
    This is definitely not the case. I took another sub setup out of the car to test this one.

    It's not the car rattling. I actually opened the hatch area to observe and listen to the sub a low volume levels and it is definitely making a sound that resembles a rattling sound.

    IDSkoT,

    I will definitely check for tinsel slap, but do you suppose the tinsels would be slapping at low volumes?? I thought that was a problem where the sub was being driven pretty hard?

    Thanks for the feedback guys.



    HU: Sony Xplod MP80
    Highs and Mids:
    Infinity Kappa series 63.5i
    Infinity Kappa series 572.5cf

    Subs: (3) Incriminator Audio DP 15's
    Sub amps: (2) Crunch GP3000D Pro's

    This one is ridiculously LOUD !

    References: Bamaboy, AZ-ss, 9512ds, and DRCKISS

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    Re: Sub is making a rattling noise??

    Bump for some help guys??



    HU: Sony Xplod MP80
    Highs and Mids:
    Infinity Kappa series 63.5i
    Infinity Kappa series 572.5cf

    Subs: (3) Incriminator Audio DP 15's
    Sub amps: (2) Crunch GP3000D Pro's

    This one is ridiculously LOUD !

    References: Bamaboy, AZ-ss, 9512ds, and DRCKISS

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    Re: Sub is making a rattling noise??

    Welp, I'm thankful for the help I did receive. I ended up pulling the subwoofer from the box and putting my DMM on it. Turns out the woofer has a bad coil. Only 1 coil was actually giving a proper readout.



    HU: Sony Xplod MP80
    Highs and Mids:
    Infinity Kappa series 63.5i
    Infinity Kappa series 572.5cf

    Subs: (3) Incriminator Audio DP 15's
    Sub amps: (2) Crunch GP3000D Pro's

    This one is ridiculously LOUD !

    References: Bamaboy, AZ-ss, 9512ds, and DRCKISS

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    Re: Sub is making a rattling noise??

    thats what i was gonna say, same thing just happend to my stereo integrity bm 12"




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    Re: Sub is making a rattling noise??

    Turn it on and press on various areas on your box. Could be a box rattle, or check your cone you may have a dustcap loose. Could prove itself very annoying.




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    Icon33 Re: Sub is making a rattling noise??

    Quote Originally Posted by shakinghorizons View Post
    Turn it on and press on various areas on your box. Could be a box rattle, or check your cone you may have a dustcap loose. Could prove itself very annoying.
    ok i have a 10' audiobahn immortal serries sub and when i turn up my stero to about 20 it makes a ratteling noise is that the tinsel inside or what is the problem because if its lower its fine if its a little higher you cant hear it as much but its still there can anyone help?




  11. #11
    Goldtaz1's Avatar
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    Re: Sub is making a rattling noise??

    Quote Originally Posted by richyrich View Post
    ok i have a 10' audiobahn immortal serries sub and when i turn up my stero to about 20 it makes a ratteling noise is that the tinsel inside or what is the problem because if its lower its fine if its a little higher you cant hear it as much but its still there can anyone help?
    Your problem sounds exactly like mine. You need to pull the sub and check the coils. You may have a bad coil like I did.



    HU: Sony Xplod MP80
    Highs and Mids:
    Infinity Kappa series 63.5i
    Infinity Kappa series 572.5cf

    Subs: (3) Incriminator Audio DP 15's
    Sub amps: (2) Crunch GP3000D Pro's

    This one is ridiculously LOUD !

    References: Bamaboy, AZ-ss, 9512ds, and DRCKISS

  12. #12
    richyrich's Avatar
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    Re: Sub is making a rattling noise??

    Quote Originally Posted by Goldtaz1 View Post
    Your problem sounds exactly like mine. You need to pull the sub and check the coils. You may have a bad coil like I did.
    well yesturday me and my friend where looking at it and on the black cap that says audiobahn we found that there is a little spot around it where the carbon fiber meets the plastic and there is no glue should i glue that on ?




  13. #13
    richyrich's Avatar
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    Icon9 Re: Sub is making a rattling noise??

    Quote Originally Posted by Goldtaz1 View Post
    Your problem sounds exactly like mine. You need to pull the sub and check the coils. You may have a bad coil like I did.
    and what do i do if i have a bad coil is the sub done or is there anyway to fix it??




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    Re: Sub is making a rattling noise??

    i went to a few audio stores and they said it was my dust cap on top of the cone they said supper glue it and so far its working lol




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