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Something wrong with sub

Discussion in 'Audio & Video' started by Jaybo, Jun 2, 2009.

  1. Jun 2, 2009 at 6:57 PM
    #1
    Jaybo

    Jaybo [OP] Well-Known Member

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    Well, the story is... My 760 watt amp and two 10"s were professionally installed and never had any trouble with them. 2 months later I replaced the two 10"s with a 15" sub. The 15" worked well for a couple weeks...

    Then it quit working all together. I have checked all the wires (including inside the actual box), fuses, and the amp light turns on. And everything looks alright.

    So I have no idea what else to check. Is there anything else I am missing to check? Or anything I need to do to get it working again?
     
  2. Jun 2, 2009 at 6:58 PM
    #2
    05PreRunner

    05PreRunner "Living life in the FAST lane..."

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    Is the amp working fine? One day my sub stopped working all of a sudden. It ended up being that the power cable came loose (where it connects the the amp)
     
  3. Jun 2, 2009 at 7:01 PM
    #3
    johnw

    johnw Well-Known Member

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    also check the amps fuses if it has them if done professionaly you might want to check the fuse they should have put in by the trucks battery but if the lights turn on for the amp then check all connections to speakers inside the box they might have cam off
     
  4. Jun 2, 2009 at 7:03 PM
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    Jaybo

    Jaybo [OP] Well-Known Member

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    I hear ya, but yeah I have checked all of the wires connecting to the amp, the stuff connected to the battery, and the wire that is connected to the fuse box.
     
  5. Jun 2, 2009 at 7:04 PM
    #5
    Mac2118

    Mac2118 Well-Known Member

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    if you push down *gently* on the cone of the sub, do you feel any resistance? sometimes if it feels scratchy you have a blown sub and would want to check it with a multimeter
     
  6. Jun 2, 2009 at 7:06 PM
    #6
    Jaybo

    Jaybo [OP] Well-Known Member

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    The fuses in the amp look good, and I will check the wires inside the box again and check everything else again tomorrow too. Just to make sure, but I have done all this stuff several times in the last couple of weeks and nothing looks out of place or bad.
     
  7. Jun 2, 2009 at 7:06 PM
    #7
    johnw

    johnw Well-Known Member

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    so everything is connected?
     
  8. Jun 2, 2009 at 7:08 PM
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    Jaybo

    Jaybo [OP] Well-Known Member

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    Excuse my ignorance, but what is the cone of the sub? And I thought the way you know it is blown is if it has a distinct smell
     
  9. Jun 2, 2009 at 7:09 PM
    #9
    Jaybo

    Jaybo [OP] Well-Known Member

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    Yup, right now I am 100% sure. But I can definitely check again in the morning
     
  10. Jun 2, 2009 at 7:24 PM
    #10
    GoBlueFan

    GoBlueFan Well-Known Member

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    the CONE is the part of the sub that moves when it's playing.


    Not so sure about the smell technique of how to tell a sub is bad though...


    When you move the cone, it may or may not try to play. If it's not smooth in movement, it might be a bad sub.

    Grab any speaker and hook it up to the amp...you don't need to turn it up, just checking to see if it's sending signal to the speaker. You are just trying to eliminate the amp.
     
  11. Jun 2, 2009 at 7:35 PM
    #11
    Jaybo

    Jaybo [OP] Well-Known Member

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    True true, I will have to try hooking up a different speaker to the amp then cause that's a good idea
     
  12. Jun 2, 2009 at 7:42 PM
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    Mac2118

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    smelling a speaker with the burning smell doesn't necessarily mean that its blown. sometimes after getting a new speaker or getting one reconed you will smell the excess glue. yeah, there is quite a distinct smell, but better safe than sorry.

    if it makes you feel any better, the rca outputs on my head unit are bad and my speakers pop because of the signal interrupts
     
  13. Jun 4, 2009 at 12:35 PM
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    sooner07

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    You can also use a AA or 9v battery. Hook it up to the speaker wire leads going into the speaker and see if the cone moves that way. Also a great way to check to make sure the polarity of the speakers are correct (sometimes the factory has them backwards).
     
  14. Jul 2, 2009 at 7:03 AM
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    Jaybo

    Jaybo [OP] Well-Known Member

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    well sorry i never got back to this thread i made, but i just gave up on it and im just gunna sell locally as is. but thanks y'all
     
  15. Jul 2, 2009 at 10:03 AM
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    ItalynStylion

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    Did you test the sub with a 9V battery to see if it made any audible sound?

    Also, each of the terminals that you connect the speaker wires to have what is called a "tinsel lead" that runs from the terminal to the center of the sub. Are the tinsel leads still connected to the terminals? Sometimes these can break off or disconnect.
     
  16. Jul 2, 2009 at 10:24 AM
    #16
    montgomery_30824

    montgomery_30824 Well-Known Member

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    wow. didnt figure you would give up and quit just cause it aint werkin right!!!!!! troubleshoot it some and figure it out!
     
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