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Thread: Using Quad 909 with professional studio mixer

  1. #1
    Join Date: Mar 2016

    Location: Brighton, UK.

    Posts: 3,072
    I'm Mike.

    Default Using Quad 909 with professional studio mixer

    I have sold my 909 to someone on the WAM, he wants to use it with a studio mixer - he is a musician, just wanted to check it would match ok with impedances etc. Into the mixer he puts synths, drum machines etc.

    From his messages - Mackie Mixer unbalanced output impedance 120ohms.
    Also have a soundcraft mixer unbalanced output impedance 75ohms.
    The Quad input impedance is 20k(omega symbol).

    Any advice appreciated, don't want him to fry the amp and then claim its not working!
    Current system 1210 GR. CDP - Meridian G08. Amp -Sugden A21I - Sig. Wharfedale Lintons.

  2. #2
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 37,786
    I'm Martin.

    Default

    No reason why it won't work. Used to be plenty of QUAD power amps in studios back in the day.
    Current Lash Up:

    TEAC VRDS 701T > Sony TAE1000ESD > Krell KSA50S > JM Labs Focal Electra 926.

  3. #3
    Join Date: Apr 2012

    Location: N E Kent

    Posts: 51,624
    I'm Geoff.

    Default

    The 909 should be fine, it can drive just about anything and has output protection anyway as I recall.
    It is impossible for anything digital to sound analogue, because it isn't analogue!

  4. #4
    Join Date: Mar 2016

    Location: Brighton, UK.

    Posts: 3,072
    I'm Mike.

    Default

    Thanks people, that sold quick. Now just hope I make the post office before total lockdown...…...
    Current system 1210 GR. CDP - Meridian G08. Amp -Sugden A21I - Sig. Wharfedale Lintons.

  5. #5
    Join Date: Jan 2008

    Location: Witney Oxon

    Posts: 893
    I'm Martyn.

    Default

    I use a Quad 405 as a PA amplifier, driven from a Yamaha mixer.
    Works really well.

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