dLive Insert Gain

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This topic contains 2 replies, has 2 voices, and was last updated by Profile photo of ParkerA1996 ParkerA1996 3 weeks, 2 days ago.

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  • #109852
    Profile photo of ParkerA1996
    ParkerA1996
    Participant

    Hey All,
    I have recently added a Neve MBP to my live rig with DM0/S5000. I am using surface sockets to perform the insert. I have tried all insert operating level settings, but obviously it seems this piece should be operating on Analogue. The main issue I am having was discovered through some strange behavior of the hardware that resulted in me looking to calibrate all clip points in the system. Whether being driven by the internal signal generator or external, the problem persists. Essentially, with the unit in full bypass (and also confirmed with an XLR between the send and return), I am seeing a level increase when the insert is placed in circuit. Something around +4.5dB when set to analogue. Has anyone else experienced this? TIA!

    #109883
    Profile photo of Nicola A&H
    Nicola A&H
    Keymaster

    Setting the Insert operating level to Analogue should compensate for the +4dBu on the XLR outputs, so that the overall gain of the circuit is 0dB. I have tested this on both MixRack and Surface sockets here, with an XLR cable, and cannot reproduce what you’re seeing.

    Is it possible that your Neve unit also have a +4dBu nominal output? It is fairly common in the audio industry.
    Another explanation is if a Scene was recalled after the operating level was set. And if this Scene had a previously stored preamp gain for the socket assigned to your Insert return, that would affect your return gain regardless of the selected operating level. You can get out of this situation by unassigning and reassigning the Insert send and return.

    If you can still reproduce the +4.5dB with an XLR cable, please grab a video and open a ticket at support.allen-heath.com so we can look into it further.

    #109888
    Profile photo of ParkerA1996
    ParkerA1996
    Participant

    Hi Nicola,
    Thanks for the quick reply! While I don’t think I have any scenes that recall surface socket offset, unassigning and reassigning the insert has restored normal functionality when placing an XLR loopback in and out of circuit.

    As a follow up question – it does still seem the clip points change when the analog loop is in versus out – a 1kHz tone from internal SigGen clips internally at +18dB and looks/sounds clean at +17dB. When the insert is engaged, the loop now seems to clip at + 14dB(clean at +13). Is this normal operation and performance given the DAC and ADC loop?

    Thanks,
    Parker

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