Splitting Preamp signal question...

Discussion in 'Amps and Cabs [BG]' started by BasturdBlaster, Feb 17, 2017.

  1. BasturdBlaster


    Feb 19, 2012
    Crandon WI
    I am planning on combining a BBE Bmax to a QSC GX3.

    The BBE Bmax has an unbalanced 1/4" output impedance of 1K Ohms.

    The QSC has two unbalanced 1/4" inputs with an impedance of 20K Ohms (each).

    The QSC has no built in provisions to "parallel" the inputs.

    I was planning on using a "Y" cable to split the BBE's output to feed both unbalanced inputs of the QSC.

    I am pretty sure this will work fine but I really want to be sure....:nailbiting:
  2. rufus.K


    Oct 18, 2015
    Well, if you believe the 10x rule, you're fine.
    BasturdBlaster likes this.
  3. agedhorse

    agedhorse Supporting Member Commercial User

    Feb 12, 2006
    Davis, CA (USA)
    Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
    It should work just fine.
    BasturdBlaster likes this.
  4. BasturdBlaster


    Feb 19, 2012
    Crandon WI
    Thanks very much fellas!:)

    Just so I'm thinking this through "correctly", Would the BBE see the two 20K inputs as 10K when using the "Y"?
  5. beans-on-toast


    Aug 7, 2008
    You can try running a single cable from the Bmax to a QSC ¼" input and use a short RCA-to-RCA or XLR-to-XLR patch cable to link the two channels.
    BasturdBlaster likes this.
  6. BasturdBlaster


    Feb 19, 2012
    Crandon WI
    You know, that's what I'm going to do, I just ordered a short Male to Male XLR patch/jumper cable, Thanks Everybody!
  7. Bob Lee (QSC)

    Bob Lee (QSC) In case you missed it, I work for QSC Audio!

    Jul 3, 2001
    Chester, Connecticut
    Former Technical Communications Developer, QSC Audio
    Yes, that'll work.

    And yes, the two 20 kΩ input impedances in parallel amount to a 10 kΩ load.
    BasturdBlaster likes this.