Knoll 6.0 II user manual Troubleshooting

TROUBLESHOOTING

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.

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.

23