Polk MicroPRO 2000

jsours
jsours Posts: 9
edited April 2013 in Troubleshooting
Howdy- I purchased a MicroPRO 2000 a couple of years ago and never took it out of the box except for once to look at it. We were in the process of moving at the time and I couldn't pass up the deal. I finally opened it up again last night and plugged it in. It has this rattle/buzz/static that is fairly constant. It sounds just like if there was something resting on the top of the driver if it was pointed vertically. I have refoamed a few speakers and it almost sounds like a voice coil rubbing. With such a thick surround, is that possible? Putting my hand on the dustcap muffles it a bit, but does not make it stop. At high volumes it does not seem to be worse. Any ideas? I would hate to scrap such a new and nice unit. Thanks- Jim
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Comments

  • jon s
    jon s Posts: 905
    edited April 2013
    contact Polk customer service. They might point you in the right direction.
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  • leroyjr1
    leroyjr1 Posts: 8,785
    edited April 2013
    Set the crossover and 80hz. I'm betting you have it up higher. When I owned mine a rattle noise would occur by the dust cap but when set to 80hz or below it went away.
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  • jsours
    jsours Posts: 9
    edited April 2013
    I tried the crossover and it is the same high or low. After fooling around with it a little more I'm not sure that it isn't an amp problem. It plays great occasionally, then has bouts of static/fuzz/rattle and then stops playing altogether. It won't restart playing unless I adjust the volume on the stereo. I left it in the 'always on' mode and it does this. I've had it on right now for the last 30 or so minutes and it plays for maybe half the time, very static-y while playing. With a decently loud volume, it will come and go on its own. At low volumes I have to turn the stereo up to get it to come back on. It isn't the signal cord either. Strange.
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  • [Deleted User]
    [Deleted User] Posts: 7,658
    edited April 2013
    Hello,
    I'm sorry you're having a problem. Give Polk's CS department a call at 1-800-377-7655 or send them an email at: polkcs@polkaudio.com and they'll help out.
    Regards, Ken
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  • jsours
    jsours Posts: 9
    edited April 2013
    Thank you all.
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  • teekay0007
    teekay0007 Posts: 2,289
    edited April 2013
    I had a similar issue with my MicroPRO 2000 once.

    I had it sitting on carpet and something just didn't sound right about it. However, my problem was volume related and occurred more when playing certain types of music or movie soundtracks. It turned out to be that the power cord was curled under the sub and at higher volumes/deep bass passages the passive on the bottom of the sub was hitting the top of the power cord making a terrible noise. :redface:

    Since then, I have realized the difference power cords can make to producing good sound! :razz:
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