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Technics SU-500 Amplifier

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Titou -  
Hello,

I have a question, why does my Technics SU-500 amplifier rated at 40 watts at 8 ohms heat up when connected to my Kenwood LSK 500 speakers?

Thank you.

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10 answers

  1.  Papounet17000
    Hi,

    Your speakers are 85 Watts RMS (true power) and your amplifier is only 40 watts.

    So you need to turn up the volume higher to properly power the speakers.

    The more power you demand from an amplifier, the hotter it gets.

    Moreover, it's no longer new.

    Have you tried removing the cover to see if there's any dust inside that has accumulated over the years?
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    1. mushu14 Contributor
      hi,
      because it's simply getting old....

      unplug it and give it a blast of compressed air (or use an air blower), I think it will do it a world of good

      --
      the return II
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      1. Papounet17000
        And according to what I read online with the reference, it is not 40 but 30 Watts.
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    2. Titou
      Do I need to switch to a more powerful amplifier?
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      1. mushu14 Contributor
        for what?
        for "laying down a sound," or throwing parties, clearly yes!!!

        for "normal" listening at home, no

        air it out, that's all
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    3. Titou
      Thank you for your responses,

      I would like to be able to have a party at 3/4 volume without having to turn down the sound because the amplifier overheats.
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      1. mushu14 Contributor
        In that case, change the amp; it clearly isn't made for that.
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    5. Titou
      Maybe you have a reference for my needs?
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      1. mushu14 Contributor
        Well, uh, how to say, for parties, it's the whole thing that needs to be changed, because your Kenwood isn't made for that either...
        It's "hi-fi" equipment for home use, you'll never get good party sound with this gear.

        Then give your budget and others will respond better than me for the choice of sound equipment.
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    6. Titou
      Thank you, but I already have a sound system,

      I’m just talking about turning it up at home, without the amplifier breaking down.
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      1. mushu14 Contributor
        in that case, force the ventilation by adding a fan, but you'll need to tinker with it and it's at your own risk.
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    7. Titou
      In that case, would an amplifier like a Kenwood A-54 be better?
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      1. mushu14 Contributor
        more powerful and a little newer, so yes if it is in good condition
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    8. Titou
      Thank you, and can the JVC AX-E900 do the job?

      Thank you for the responses.
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      1. mushu14 Contributor
        same style as the Kenwood, so yes
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    9. Titou
      Thank you for all your advice.
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      1. mushu14 Contributor
        You're welcome and it was a pleasure.
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    10. Audio
      Good evening!

      I'm bringing the topic back up, I just acquired a Kenwood KA 94, will it hold up better?

      (By the way, I'm selling my Technics amplifier)

      Thank you in advance.
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