Galaxy SPL Meter

Discussion in 'Home Theater Projects' started by ivanSFO, Oct 21, 2004.

  1. ivanSFO

    ivanSFO Auditioning

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    Hi all,

    I just assembled my first HT system and need to buy a SPL meter to help me calibrate it. My original plan was to buy the Radio Shack meter but I have a $50 credit at Amazon which I can use to buy their Galaxy Audio CM130 SPL Meter.

    Does anyone know if this SPL meter is as good as the one from Radio Shack? My concern is the stated frequency range is 125Hz to 8KHz. At 125hz, I don't see how this can calibrate my subwoofer.

    Your thoughts?

    Thanks,

    Ivan
     
  2. Bob McElfresh

    Bob McElfresh Producer

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    Even the often used Radio Shack SPL meter is not very accurate below 100 hz. There is a correction-table floating around here.

    I would be more concerned about the 8Khz upper limit.

    The test-tones you will use to calibrate will sound like static. This is because they are a blend of a bunch of frequencies - all within the human range of hearing. While I dont suspect the test-tones go much above 15 Khz, human hearing can detect sounds as high as 20 Khz. So using a SPL meter with a 125 hz - 8 Khz range seems like the wrong thing to do.

    Spend the amazon money on something else.
     
  3. ivanSFO

    ivanSFO Auditioning

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    Thanks Bob for the advice. Yeah, I'll stick with my original plan and buy something else at Amazon.

    Also I went through my Onkyo 701 manual last night and even that mentioned the "Radio Shack" SPL meter.

    Thanks,

    Ivan
     

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