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Technics SU-500 Amplifier

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Titou -  
 Audio -
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 Posted messages 26460 Registration date   Status Member Last intervention   9 895
     
    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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  2. mushu14 Posted messages 11897 Registration date   Status Contributor Last intervention   1 123
     
    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 Posted messages 26460 Registration date   Status Member Last intervention   9 895
       
      And according to what I read online with the reference, it is not 40 but 30 Watts.
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  3. Titou
     
    Do I need to switch to a more powerful amplifier?
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    1. mushu14 Posted messages 11897 Registration date   Status Contributor Last intervention   1 123
       
      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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  4. 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 Posted messages 11897 Registration date   Status Contributor Last intervention   1 123
       
      In that case, change the amp; it clearly isn't made for that.
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  6. Titou
     
    Maybe you have a reference for my needs?
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    1. mushu14 Posted messages 11897 Registration date   Status Contributor Last intervention   1 123
       
      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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  7. 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 Posted messages 11897 Registration date   Status Contributor Last intervention   1 123
       
      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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  8. Titou
     
    In that case, would an amplifier like a Kenwood A-54 be better?
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    1. mushu14 Posted messages 11897 Registration date   Status Contributor Last intervention   1 123
       
      more powerful and a little newer, so yes if it is in good condition
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  9. Titou
     
    Thank you, and can the JVC AX-E900 do the job?

    Thank you for the responses.
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    1. mushu14 Posted messages 11897 Registration date   Status Contributor Last intervention   1 123
       
      same style as the Kenwood, so yes
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  10. Titou
     
    Thank you for all your advice.
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    1. mushu14 Posted messages 11897 Registration date   Status Contributor Last intervention   1 123
       
      You're welcome and it was a pleasure.
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  11. 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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