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spl meter

Discussion in 'Home Cinema Speakers' started by mw3cdj, Mar 31, 2003.

  1. mw3cdj

    mw3cdj
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    Hi all,
    nearly finished my new hc room :clap: and it will soon be setting up time.What i need to know is do i point my spl meter at each speaker in turn or do i leave it facing forward.
    thanks for any advice.
     
  2. sounddog

    sounddog
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    You should have the soundmeter pointing upwards with it in your listening position as you test each speaker.

    Vikki
     
  3. mw3cdj

    mw3cdj
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    As in vertical , or at an angle ???
     
  4. mw3cdj

    mw3cdj
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    Is this also the same for the sub, and do i set the sub up for the same spl reading as the rest of the system ???
     
  5. HotblackDesiato

    HotblackDesiato
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    I use my SPL pointing directly at the celing, though off vertical, slightly towards the front speakers, is also ok, from what i understand. Sub wise i tend to set the level by ear, then once i'm happy i take an SPL reading...so i can easily reset things after my 20month old has tweaked the system. The Dolby spec's _i think_ allow for the sub to be 10dB above the rest of the speakers.
     
  6. mw3cdj

    mw3cdj
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    ok, let me get this. You set the sub for 10db higher than the rest of the individual speakers?? is that right?? Sorry to sound a bit clueless but i want to get this right.
    thanks.
     
  7. HotblackDesiato

    HotblackDesiato
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    Dolby allows for 10dB, and yes that's above the rest of the speakers, but personally i find this a little over the top.
    By ear, and depending on sub, i tend to arrive at settings from 0dB to around +7dB, with respect to the other speaker.
     
  8. nathan_silly

    nathan_silly
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    I point the SPL mic at each speaker in turn.
     
  9. mw3cdj

    mw3cdj
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    ok.looks like there are two schools of thought here.Is this a case of suck it and see or is there some logical explanation why some people do it one way and others a differant way?? Which way do dolby recomend?? Can't find anything on the dolby site ! any thought's??
    Thanks
     
  10. MonkeyDonkey

    MonkeyDonkey
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    The instructions that came with my radioshack meter say
    "For the most accurate readings and the best polar response, point the meter's microphone towards the sound source when possible."
     
  11. bob007

    bob007
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    Just to confuse matters, here's Rotels view on how it should be used. ;)

    Calibration
     
  12. mw3cdj

    mw3cdj
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    Now this is getting confusing:confused: Think i'll just set it up by ear.
    Thanks for all the feedback.
     

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