23
TROUBLESHOOTING
I am trying to use QSC’s DSP-3 or DSP-4 signal processor, but it doesn’t power up when the amp is turned on.
What’s wrong?-
• Nothing. The PL6.0 II does not supply the required power to the DSP-3 or DSP-4
module.
• An accessory AC adaptor (wall wart) will be required for the DSP-3 or DSP-4. Contact
QSC Technical Services for details.
• Make sure the DataPort cable between the amp and the DSP module has pin #9
removed from either end. See DSP module documentation for details.
I am using the amp for a subwoofer application and it sounds “rubbery”, what’s up?-
• Verify that the Clip Limiters are OFF. See page 21.
• The Clip Limiter is set to respond as quickly as possible after clipping is detected. On
low frequency material, this may be perceived as a “rubbery” effect. It may be preferable
to turn Clip Limiting off, and let the amp clip occasionally, especially if the speakers are
robust.
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