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  1. #1

    Member Sales Rating: (0)

    Join Date
    Oct 2009

    Default Broken MicroPro 3000, what options?


    I have a Polk MicroPro 3000 subwoofer that I got a year ago new in sealed box on eBay. Unfortunately it started having issues with cutting out, eventually becoming totally silent. There were chop-off sounds like a basketball bouncing on the floor when there were supposed to be more flowing base sounds. When it works, it still plays sound in its full beauty, until it starts cutting out.

    I assume that this is a blown amplifier, is is this a common occurence in the MicroPros? Since I got it on eBay, there is no warranty, a replacement amp is $600, more than I actually paid. I opened it up to see if there is something obvious wrong, but everything seemed visually in order, except for a small metal L-bracket that stuck to the speaker magnet and didn't seem to belong anywhere. The build quality inside was very clean and solid, so I don't think this is a knock-off. The speaker looks inside almost more impressive than outside.

    What would you do?

    • Sell for parts?
    • Get a 3rd party sub amplifier like a Dayton that fits the 10x10 back plate? Is this feasible, or is a sub amplifier specifically tuned to a certain kind of speaker?
    • Fix it in some other way?
    • Dump it?


  2. #2

    Member Sales Rating: (17)

    Join Date
    Feb 2007
    Central NJ


    Send the amp to Ben62670 for repair
    Polk Audio SDA SRS 1.2TL's
    With new Exotic wood, Sonicaps, Mills & RDO198's - Born on 4-24-1989 and Signed by Matthew Polk!!!!

    My Polk SDA SRS 1.2TL's

    It All Started here:

    Part Deux:

    Car Stereo----><---- NEW for 2013

  3. #3

    Member Sales Rating: (58)

    Join Date
    Feb 2003
    6 Underground


    Send the amplifier to me. I'm available by email if you highlight my name.

    Las- Is he really in the subwoofer repair business now?
    Last edited by dorokusai; 11-23-2010 at 07:23 PM.

  4. #4

    Member Sales Rating: (6)

    Join Date
    Feb 2002
    Rockledge, Florida


    I wonder if that L-Bracket belongs to something and should be sent with amp for repair.

    Carver Amazing Fronts
    CS400i Center
    RT800i's Rears
    Sub Paradigm Servo 15

    Conrad Johnson PV-5 pre-amp
    Parasound Halo A23
    Pioneer 84TXSi AVR
    Pioneer 79Avi DVD
    Sony CX400 CD changer
    Panasonic 42-PX60U Plasma
    WMC Win7 32bit HD DVR

  5. #5

    Member Sales Rating: (0)

    Join Date
    Feb 2010
    Central Massachusetts


    Try the Polk eBay store and get a new one (or similar) for the same price. Then you'll have a warranty too.
    Receiver - Onkyo TX-NR709
    Main L/R - Polk VM30 (Hi WAF)
    Center - Polk VM20
    Surr L/R Side Yamaha Inwall
    Surr L/R Rear - Yamaha NS-IW660 InWall
    Height: Dolby Prologic IIZ - Bose 161
    Sub- Polk DSW Pro 600

    T.V.- 55" Samsung LED UN55B8000 240Hz
    Tivo HD w/1TB External Storage
    Blue-Ray- Playstation 3 Slim - 250GB
    Gaming - PS3 & Nintendo Wii
    Power - Panamax M5300-PM

    Network - 8 Port GbE@ 3 x 802.11abg APs

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