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Crossover cutting out in Crate PS 118 subwoofer

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  • Crossover cutting out in Crate PS 118 subwoofer

    I have a Crate Audio PS 118 18" subwoofer that has recently started cutting in and out (no sound) with some slight distortion. The speaker seems fine. The built in crossover appears fine as well. I have mu ideas of what may wrong, but I would liek to consult the experts first. Any suggestions??? The Great and Wonderful, All Knowing Enzo.... You hearing this??
    Thanks.

  • #2
    Isolate the problem. Look, the subwoofer is a box with two things in it - a speaker and a crossover. COnnect the speaker wires to a different speaker. If that cuts out, then it is a crossover issue, and if not, then the speaker has the issue.

    If the 18 is intermittant, pull it and clip an ohm meter to it. You should get contiuity at a few ohms. Now flex the tinsel wires to the cone. Does hte continuity deviate? Avoid moving the cone, that will generate a small voltage which will confuse the meter.

    If the crossover is intermitting, then look at the solder closely on all the parts. And on patrs that are glued down, do not assume their leads are not broken. A part can break its lead wire in the hole on the board and still sit there looking pretty.
    Education is what you're left with after you have forgotten what you have learned.

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    • #3
      Hey Enzo. Thanks fo rthe info friend. I guess I shouldn't have sounded so vauge at first. I'm really not as clueless as I made myself sound. I already had varified that the crossover is not the issue. I actually was thinking that it was something inside the speaker itself. The cone is in perfect shape and definitely not in DC. It moves in and out by my hand just as it should. What happens is, the speaker move from the initial signal. But then after just a few seconds it quits. After awhile it will come back on, but only to quit again just the same way. My biggest problem right now is that I can't get the speaker free from the cab. ??? I think it is glued down as well as screwed? I have never seen that done before, have you?

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      • #4
        I suspect it is simply stuck. Paint, tolex, the wood itself, who knows what. Stuff often sticks to the cabinetry in amps and speakers. I am sure they did not glue the speaker in place.

        You speaker may look nice and not rub, but that doesn;t mean the tinsel wires are not broken.
        Education is what you're left with after you have forgotten what you have learned.

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