Matrix out levels

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This topic contains 3 replies, has 3 voices, and was last updated by Profile photo of SteffenR SteffenR 5 years, 1 month ago.

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  • 2019/03/11 at 8:00 pm #82574
    Profile photo of RobbO
    RobbO
    Participant

    I’ve seen this discussed in the Qu forums and I’m thinking it’s true for the dLive to but just to make sure….

    If I route a sinewave into a matrix at 0dB, I see 0dB on the leds above the matrix fader. Say this matrix is used for recording and is going out both analog via the mixrack and AES via the surface. On the recorders I’m seeing a level of -18dB.

    Normal or not?

    2019/03/11 at 9:02 pm #82576
    Profile photo of ddff_lv
    ddff_lv
    Participant

    Normal. Because recorders use dBFS scale, that stops at 0, but dLive and SQ are in dBu. And on these desks 0dBu happen to be at -18 dBFS. So you have 18 dB of headroom.

    2019/03/14 at 1:39 am #82646
    Profile photo of RobbO
    RobbO
    Participant

    Cool. I’m not crazy then.

    2019/03/19 at 8:32 am #82814
    Profile photo of SteffenR
    SteffenR
    Participant

    a minor correction: the maximum out level is 22dBu
    and 0dB on the meters is 4dBu

    https://www.allen-heath.com/media/CDM32-Datasheet-1.pdf

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