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    What to look for used subs

    So I'm going to take a look at 2 x12s tommorrow and im not sure what to look for or how to tell if something is wrong. Any tips?

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    Re: What to look for used subs

    Take a dmm and check the coils



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    Re: What to look for used subs

    Quote Originally Posted by kr15 View Post
    Take a dmm and check the coils
    What would be considered a bad reading?

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    Re: What to look for used subs

    Find out what impedance they're "supposed" to be and compare to what they actually read with the DMM. If D4's, the coils should read 3.8ish-4ish each.




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    Re: What to look for used subs

    They should read within a few tenths. Check resistance in probes by touching them together. Usually reads a few tenths also



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    Re: What to look for used subs

    What setting would it be

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    Re: What to look for used subs

    If they give a bad reading is it difficult to repair? He doesn't have anything to try on so if the reading is good that means they should work Correct

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    Re: What to look for used subs

    200 ohm.


    Yes if the coils are bad it would require recones.



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    Re: What to look for used subs

    Id check impedance and smell motor for any burnt smells



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    Re: What to look for used subs

    What subs are they?




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    Re: What to look for used subs

    Quote Originally Posted by Kam311 View Post
    What subs are they?
    yeah if they planet audio or boss don't buy them no matter what lol..



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    Re: What to look for used subs

    Says two X12s in the first post.



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    Re: What to look for used subs

    Quote Originally Posted by Kam311 View Post
    What subs are they?
    2 sundown x12

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    Re: What to look for used subs

    Just as popwarhomie said, set DMM at 200 ohms. Stick probe in each pos(red) and neg(black) of the terminal of the sub. Should give you a lower number if the subs are dual 4 ohm, then it might read 3.7 or 3.6 There's never a perfect 4.0 coil read.

    Same with dual 2 ohms. So the DMM should say 1.7 or so give or take a point or two. Let us know how it goes.



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    Re: What to look for used subs

    Quote Originally Posted by Boomin_tahoe View Post
    Just as popwarhomie said, set DMM at 200 ohms. Stick probe in each pos(red) and neg(black) of the terminal of the sub. Should give you a lower number if the subs are dual 4 ohm, then it might read 3.7 or 3.6 There's never a perfect 4.0 coil read.

    Same with dual 2 ohms. So the DMM should say 1.7 or so give or take a point or two. Let us know how it goes.
    I just picked them up the lowes reading I got was 3.6 so I got them. Now just need to figure out the dimensions for a box and build one

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