Speakers levels

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  • ian1975
    Member
    • Apr 2009
    • 83

    Speakers levels

    Hi!
    Is it normal that I have to setup my speakers and sub at level -10 to -12 to get 75 on the SPL meter?

    What are your speakers levels?

    Thanks

    Ian
  • Kal Rubinson
    Super Senior Member
    • Mar 2006
    • 2109

    #2
    It depends on the sensitivity of the speakers and the sensitivity of the amps as well as the accuracy of the meter.
    Kal Rubinson
    _______________________________
    "Music in the Round"
    Senior Contributing Editor, Stereophile
    http://forum.stereophile.com/category/music-round

    Comment

    • wildtangent
      Member
      • Dec 2006
      • 50

      #3
      Originally posted by ian1975
      Hi!
      Is it normal that I have to setup my speakers and sub at level -10 to -12 to get 75 on the SPL meter?

      What are your speakers levels?

      Thanks

      Ian

      The exact value of the SPL (sound pressure level) is not a value fixed in stone. An SPL of 75db is considered by some to be an average listening level. There are many factors that affect the SPL level in your listening room, how close are your speakers to your listening position, the gain of your amplifiers the sensitivity and efficiency your speakers and the level of the test signal. A good idea is to zero out the trim controls on the SSP800 and cycle through noise taking note of the SPL reading on all active speakers before you make any trim adjustments. Look at the numbers and figure out the difference between them. If you have several speakers that are about the same level leave them alone and dial in the differences in the others. Check the readings again and make any final tweeks. At the end of the exercise the levels are now corrected and you use your volume control to set your listening level.

      Comment

      • ian1975
        Member
        • Apr 2009
        • 83

        #4
        How do you zero out the trim controls on the SSP800 and cycle through noise taking note of the SPL reading on all active speakers?

        Thanks

        Comment

        • AV-OCD
          Senior Member
          • Aug 2008
          • 568

          #5
          Originally posted by wildtangent
          The exact value of the SPL (sound pressure level) is not a value fixed in stone. An SPL of 75db is considered by some to be an average listening level. There are many factors that affect the SPL level in your listening room, how close are your speakers to your listening position, the gain of your amplifiers the sensitivity and efficiency your speakers and the level of the test signal. A good idea is to zero out the trim controls on the SSP800 and cycle through noise taking note of the SPL reading on all active speakers before you make any trim adjustments. Look at the numbers and figure out the difference between them. If you have several speakers that are about the same level leave them alone and dial in the differences in the others. Check the readings again and make any final tweeks. At the end of the exercise the levels are now corrected and you use your volume control to set your listening level.
          All good points and a valid approach to setting levels, but the volume readout on the SSP would not be accurate. "0" would no longer be reference level when using the "relative" setting, and the dB readout would be off when using the "absolute" setting.

          Comment

          • Oddiophile
            Senior Member
            • Jul 2008
            • 173

            #6
            Originally posted by ian1975
            Hi!
            Is it normal that I have to setup my speakers and sub at level -10 to -12 to get 75 on the SPL meter?

            What are your speakers levels?

            Thanks

            Ian

            Ian,

            For what it's worth...

            I don't know your speaker distances but judging by my readings when I had my 802Ds in the front and when I had my HTM2D, I suspect that your readings are in the ballpark.

            Jim

            P.S. I will send you a PM with distances and levels when I get a chance.

            Comment

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