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V-1B M&K Subwoofer has a load humm

As you can imagine, I've had these speakers for over 30 years. The woofer is now making a humm and the only thing I can do is unplug it (the satellites are working fine). I don't know where to go to get it repaired, or if I can do it myself...I'm not a wirehead.
Thanks,
Mike

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  • Anonymous Dec 02, 2008

    I have the same subwoofer that was given to me by my father a few years back. it has all original insides to it. I do experience the SAME EXACT problem you have! My dad told me about it and I didn't notice anything until I really started using the subwoofer for extended periods of time (aka 2hours or more) yes, thats extended for me. lol

    Well, I haven't found anyone in Portland Oregon willing to 100% guarantee me they could fix the issue. As it is an occasional problem with my subwoofer.

    Have you had anyluck since your last post on your MK v-1b?
    also, I guess there were a few color choices. mine is the cherry wood. I have the matching Satellites with stands. All original insides in the satellites too. (father gave me them with subwoofer) I have no complaints with such an old speaker setup. As im a casual audiophile.


  • skidmoremd Dec 08, 2008


    You have been the only one to respond. I called a shop that said it would cost $180 to diagnose and then there is the cost to repair (unknown). I’ll get it fixed at some point, but for now, I’m going to hold off.

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Capacitors wear out over time, like a battery does. It's possible that the caps in the crossover are expired.

Easy fix if you're handy!

Else, try different interconnects. When an 'RCA' type interconnect fails, it often introduces noise audible as a hum.

Posted on Dec 02, 2008

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