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SPL Meter?

Discussion in 'AV Receivers & Amplifiers' started by Mr Quint, Jul 29, 2005.

  1. Mr Quint

    Mr Quint
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    Thought i might as well ask this small question while i am here.

    A friend and i where talking Home Cinema the other day when he said he has always wanted to set his system up using a SPL Meter, i have never done this and i am more than happy with the sound from my system.

    However, is it worth giving it a try and how do you use it?

    I have been into Home Cinema for years and have seen adverts for them but have never seen one in the flesh, Sad i know. :eek:
     
  2. eviljohn2

    eviljohn2
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    Absolutely worth doing - an "upgrade" worth several jumps in electronics IMO. You use them to set all of the speaker channel volumes so that they're the same - human ears are rubbish at guessing exact volumes particularly over a range of frequencies (although they're excellent at determining differences between volumes).

    Set the meter to "Slow", play the amplifier test tones at 100dB on the volume control and trim them so that the meter reads 75dB. :)
     
  3. Mr Quint

    Mr Quint
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    When you say trim them, do you mean knock them down to the -, Eg: from 0 to say -2 untill you read 75db on the Meter?
     
  4. eviljohn2

    eviljohn2
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    That's it, using the amplifiers internal channel volume controls as you should have done when you originally set it up although that would have been by ear. :)
     
  5. Mr Quint

    Mr Quint
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    :smashin:

    Oh, where is the best place to buy a SPL?
    Think maplins do one.

    Also thanks for the Help :thumbsup:
     
  6. eviljohn2

    eviljohn2
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    Myself and a number of other forum members use the analogue Radio Shack model which is available from Keene Electronics or Cornwall Electronics amongst others - both have websites and it comes to about £35 inc P&P.

    I'm always surprised at how often I use the thing.

    I should add the caveat that you may have flukily set the channels exactly right so you obviously won't benefit from an SPL meter although I have yet to hear a system that didn't benefit and I'm sure plenty of other posters can attest to the benefits. :)
     
  7. Mr Quint

    Mr Quint
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    Cheers. :)
     

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