Considerations Regarding Noise And Hum; Other Considerations - Kemper Profiler Main Manual

PROFILING an Amp 289
PROFILER. Keep in mind that this will not change the result of the PROFILING process in any way but will make A/B
comparisons between the reference amp and the PROFILER much easier.
If you want to make Profiles of computer-based amp simulations, but without using any kind of external mixer for
monitoring purposes, you need to be careful not to create a feedback loop. One easy way to avoid this is by using
only headphones to monitor the output of the PROFILER while PROFILING. You can also make appropriate settings
in your DAW to prevent the PROFILER from being routed back into itself.

Considerations Regarding Noise and Hum

If you're PROFILING a very high-gain sound, you'll probably hear a certain amount of noise from your guitar amp.
This is the well-known "high-gain hiss" and nothing unusual. However, if you detect hum, or other noisy artefacts,
from your reference amp then you probably have a ground loop. Press the GROUND LIFT button on the back of the
PROFILER Head or Rack for both the MAIN OUTPUT and the RETURN. The PROFILER Stage has no physical
ground lift switches, but instead provides ground lift options in the Output Section. If that does not solve the problem,
try different combinations using the other GROUND LIFTs. It is important that at least one of the GROUND LIFTs is
not activated to ensure that the PROFILER has at least one ground connection.
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Remember that hum and noise is undesirable and might have a negative influence on the PROFILING process.
Often, the best results are achieved by activating the GROUND LIFTs for all outputs except for the DIRECT OUT /
SEND 1.

Other Considerations

Make sure that you are hearing the previously selected Rig in the PROFILER when you set the A/B comparison to
"KEMPER amp", and the reference amp when you switch to "Reference amp". If you don't, re-connect your
reference amp to the PROFILER.
We do not recommend using a guitar cabinet as a reference monitor for PROFILING. For best results, please do
your PROFILING in a typical studio setting, using either studio monitors, or a PA.
If your amp provides a spring reverb, remember to turn it off for the PROFILING process.