PLX 1202 on Channel has less output!

Moderators: Cameron Shoffner, Christian Cook, Kirk Fyvie, Martin Barbour, Gary Evans_QSC, QSC-Dale Sandberg

Sat Feb 13, 2016 11:30 am

  • Hello!

    First off, thanks for any help with this!

    I have a PLX 1202. Channel one has to be at 32 (maximum) to equal channel two's volume output at 22(12 O'clock/half volume). So far it has worked like this for 10 years with no other problems. But I would like to know if there is a fix for this.

    Much Appreciation,
    Jazz C
    Posts: 1
    Joined: Mon Nov 07, 2011 12:36 pm

  • Yes, that can be fixed. Have a qualified service technician check out the amp and find where the gain problem exists.

    If the amp was manufactured before June 1999 and has never had its ribbon cables replaced, that could be the culprit. A service tech with good desoldering and soldering equipment should be able to swap out the ribbon cables with about an hour's work. Order QSC service kit # SG-000210-AC.
    Bob Lee
    Technical Communications Developer
    QSC, LLC
    Fellow, Audio Engineering Society
    "If it sounds good, it is good." —Duke Ellington
    User avatar
    Bob Lee
    QSC Audio Products
    Posts: 2518
    Joined: Thu Mar 06, 2003 2:01 am
    Location: Costa Mesa, California

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