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plate sub amp

  1. J

    Give it a go! Subwoofer

    I'm a newbie to making anything from wood and so I was really pleased how this turned out. The main intention of this post is to encourage others and to leave a record of what I did. Firstly I watched lots of others on yt doing same and felt envy and inadequacy. I decided to build one of...
    • johnlon
    • Thread
    • homemade plate sub amp subwoofer box
    • Replies: 4
    • Forum: Speakers
  2. J

    Polk Audio Sub Plate Amp PSW505 SMPS issue

    Hi All Again, I have a Polk Audio plate amp for a sub that had a good standby light but when in auto mode or on mode standby remains red and no audio. Opened it up and immediately saw all 4 secondary filter caps bulged/domed. So we ordered caps and I replaced but still no go. After further...
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