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Dayton SA100 Plate Amp Issue

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  • Dayton SA100 Plate Amp Issue

    Got a SA-100 in Jan of last year and was really pleased with it. I don’t drive it hard so I was a bit surprised when it blew a fuse a couple of months ago. Replacement was painless but two weeks ago I noticed that there was virtually no output even at full gain. It no longer thumps on startup but you can feel the driver vibrating and the woofer isn’t blown but no bass.

    Took it to a local shop and the technician seems to be mystified (don’t know how competent they are, never used them before) ... any pointers on where he should be looking.

  • #2
    Model Number SA100
    List Price $149.99
    Color Black
    Unit of Measure Each
    UPC 844632015946
    Warranty - Parts 5 Years
    Warranty - Labor 5 Years

    Comment


    • #3
      Originally posted by crashbuilder View Post
      Took it to a local shop and the technician seems to be mystified (don’t know how competent they are, never used them before) ... any pointers on where he should be looking.
      I suspect that may have been the wrong place to take it. If you are still in Barbados, and round trip shipping to PE might exceed the value of the item, maybe try contacting some members of the Amateur Radio Society of Barbados and find out where they might take radio electronics for expert repairs.

      "Our Nation’s interests are best served by fostering a peaceful global system comprised
      of interdependent networks of trade, finance, information, law, people and governance."
      - from the October 2007 U.S. Naval capstone doctrine
      A Cooperative Strategy for 21st Century Seapower
      (a lofty notion since removed in the March 2015 revision)

      Comment


      • #4
        Thanks ... got a line on guy with a good reputation, will be checking him out, now that the original shop has officially given up.

        Comment


        • #5
          Not surprising. I had a similar experience with one of the cheapo PE plate amps (I forget which model). It dropped in power dramatically before it stopped working entirely. Reviews suggest that this is quite common. As a result I now use a more traditional separate amp like the SA230. It costs a bit more but is just better in every way, including no more crouching over behind the sub every time I want to make an adjustment.

          SA230:

          https://www.parts-express.com/Dayton...lifier-300-813

          Comment


          • lunchmoney
            lunchmoney commented
            Editing a comment
            I wonder if the vertical orientation has anything to do with it.

          • buggers
            buggers commented
            Editing a comment
            No, they are just cheap garbage...

          • fpitas
            fpitas commented
            Editing a comment
            Seems likely. I wonder why you can't get decent ones.

        • #6
          I would contact PE and do a warranty claim. Most Dayton Audio products are warrantied for 5 years. So take them up on it. And I can't imagine shipping costs are that unreasonable, but I haven't shipped anything recently. These little plate amps are lightweight though (compared to shipping back a sub for example) so it might be worth checking into.

          Comment


          • #7
            Originally posted by danmarx View Post
            I would contact PE and do a warranty claim. Most Dayton Audio products are warrantied for 5 years. So take them up on it. And I can't imagine shipping costs are that unreasonable, but I haven't shipped anything recently. These little plate amps are lightweight though (compared to shipping back a sub for example) so it might be worth checking into.
            My understanding is that he is located in the eastern Caribbean island country of Barbados, and not within CONUS. I would expect roundtrip shipping to be exorbitant (and shipping through border customs both ways both countries may add more cost and bother), enough to make the "free" warranty repair cost prohibitive relative to the cost of paying for local repair. If local repair doesn't work out well, better to apply the cost of shipping toward the purchase of a better amplifier with higher quality in components and manufacture.

            "Our Nation’s interests are best served by fostering a peaceful global system comprised
            of interdependent networks of trade, finance, information, law, people and governance."
            - from the October 2007 U.S. Naval capstone doctrine
            A Cooperative Strategy for 21st Century Seapower
            (a lofty notion since removed in the March 2015 revision)

            Comment


            • #8
              Ah got it, that makes sense. Must have skimmed over that part where you mentioned where crashbuilder lived. I suppose getting it fixed yourself is your only option. I wish I could provide some generic troubleshooting tips but I'd only be guessing without additional information about the failure. I'd be inclinded to suggest either something in the amp stage or in the power supply stage but that's just a guess. Hopefully your local guy has experience with amps and can figure it out.

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