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Reload Thread: How the **** did I blow my sub?

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    bball09124's Avatar
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    How the **** did I blow my sub?

    Finished a new box this morning, I was doing a practice run on the way up to Florida State Finals, holding a 143-144 on my meter (140-141 on the TL) sealed up. 20 seconds into my bassboxing run (60 second avg) volume drops, I turn it down. Wait til I get to the show, pop the trunk, one subwoofer is stuck at its peak excursion. I didnt snap a pic before I pulled it out, but it looked as if you hooked the coils up to a bank of 9V batteries. I pushed as hard as I could on the sub to get it back down and it did not budge. No one on my team or who saw the sub as we were tearing it down had ever seen anything like it. We take a razor to the cone and spider, this is what we find.




    Pole was shifted all the way to the side, pinched the coil. The pole has not always been shifted, it played fine previously and there was absolutely no rubbing or scratching. I did not hit a pothole, or anything, to knock the pole that off center. The other 10" SX sitting in the box with it was just fine.



    bought from: cbrrocketrdr, bk12321, galacticmonkey, jnoel, aaronmiiller, revrider1, QtrHorse, brchd, Calikid, IA2, miker, dontknowanythin, Towncar, woofercooker, speedyg76, cd6551
    traded with: lorilee8284, Boominator
    sold to:ravens9322, Blinkdogo2, dbubble, Fusion_FREAK, oneill584, jrgreene1968




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    Re: How the **** did I blow my sub?

    that *****... Id say it had to been hit hard to do that dammage.



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    Re: How the **** did I blow my sub?

    can you knock the pole piece/back plate back into place with a mallet?

    if so the glue joint between the back plate and the ferrite is broken




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    Re: How the **** did I blow my sub?

    terrorist attack?



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    Re: How the **** did I blow my sub?

    Quote Originally Posted by dumpin907 View Post
    terrorist attack?
    thats what i was thinking. either way that *****.



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    Re: How the **** did I blow my sub?

    Quote Originally Posted by dumpin907 View Post
    terrorist attack?
    i can belive that



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    Re: How the **** did I blow my sub?

    dam ive never seen **** like this!



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    Re: How the **** did I blow my sub?



    is the pole loose?




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    Re: How the **** did I blow my sub?

    I have seen that before. We were running two Alphasonik subs in a snail shell type box. I think we played a note under tuning and one just became stuck. It took massive strength to get it to go back to normal.




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    Re: How the **** did I blow my sub?

    Quote Originally Posted by jstbass View Post
    I have seen that before. We were running two Alphasonik subs in a snail shell type box. I think we played a note under tuning and one just became stuck. It took massive strength to get it to go back to normal.
    can you show me how to build a snail shell box please!



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    Re: How the **** did I blow my sub?

    pole is not lose. i pushed and pulled with all my strength. i even slammed it on the ground a few times out of anger and it didnt budge.



    bought from: cbrrocketrdr, bk12321, galacticmonkey, jnoel, aaronmiiller, revrider1, QtrHorse, brchd, Calikid, IA2, miker, dontknowanythin, Towncar, woofercooker, speedyg76, cd6551
    traded with: lorilee8284, Boominator
    sold to:ravens9322, Blinkdogo2, dbubble, Fusion_FREAK, oneill584, jrgreene1968

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    Re: How the **** did I blow my sub?

    Looks like the glue that holds the pole piece got too hot and let the pole slide. If the subs were mounted vertically did the pole move towards the bottom of the box? If so that's a pretty solid overheating indicator.




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    Re: How the **** did I blow my sub?

    use a mallet on it?


    if the glue joint was weak already i could see you bottoming the sub out so hard it broke the adhesion of the glue

    so now the only thing holding the bottom plate to the rest of the motor is magnatizim (sp?)

    while it would be really hard to shift the bottom plate back into place it could be done with a really big hammer




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    Re: How the **** did I blow my sub?

    clipping came to your car, disrespected your sub.




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    Re: How the **** did I blow my sub?

    it was ridiculously hot out today, perhaps i did bottom it out and it knocked it out of place? i'll take a mallet to it tomorrow to see if i can move it.



    bought from: cbrrocketrdr, bk12321, galacticmonkey, jnoel, aaronmiiller, revrider1, QtrHorse, brchd, Calikid, IA2, miker, dontknowanythin, Towncar, woofercooker, speedyg76, cd6551
    traded with: lorilee8284, Boominator
    sold to:ravens9322, Blinkdogo2, dbubble, Fusion_FREAK, oneill584, jrgreene1968

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