Buzzing sound from RTI 8

bobcalkin
bobcalkin Posts: 4
edited September 2009 in Troubleshooting
I am having a problem with one of my 3 year old RTI 8 speakers. At times, particularly on certain frequencies there is a high pitch buzzing sound coming from the right speaker. It is rare and seems to appear at a specific high frequency. I first noticed it on a Jewel Blu ray during a yodeling track but it has popped at other times during movies and other discs. To be clear, it does not sound like a blown driver, it sounds like an object around the speaker buzzing which is what I thought it was at first. After I removed every object in the area I think I have isolated the problem. When I tighten the screws on the bottom woofer the sound diminished greatly but did not disappear. On all the other woofers I am able to get the screws good and snug but on this particular driver the screws spin in the wood and don’t really tighten like the other ones. I read on this board once that they use a type of glue on the screws at the factory to keep them tight. Does anybody know if Polk will provide this glue to customers or is there a DIY way to do this?
Post edited by bobcalkin on
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Comments

  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited September 2009
    The ideal way to fix it would be to remove the driver, and get a piece of dowel rod that fits into the screw hole. Cover the dowel in wood glue and push it in until it's flush. Wipe off the excess glue, and let it set.

    Then you're going to need to redrill the hole and remount the driver.


    If you want to take the easier route, you can also just break off a chunk of a tooth pick and put it into the hole, and drive the screw into it.



    I've never heard of Polk using a glue to keep the screws tightened. I periodically go over the drivers in all of my speakers and retighten them. You don't want to overtighten them, but they need to be nice and snug. They tend to loosen up a little bit over time.
    The nirvana inducer-
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  • treitz3
    treitz3 Posts: 19,029
    edited September 2009
    Take some steel wool. Just a little bit and stuff it in the hole(s) that are loose. Install the driver again.

    Take toothpicks and some wood glue. Stuff them in all of the loose holes and let set overnight. If you have the proper tool, shave the leftover off. Both fixes are not the proper way to repair, but will get you by.

    Use common sense when doing either fix and Mc Gyver would be happy. Are you familiar with Mortite?
    ~ In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence. ~
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