User Manual

PROFILING an Amp 286
How to PROFILE an Amp without a Cabinet (Direct Amp PROFILEs)
So far, we have taken PROFILEs of combinations of guitar amplifiers and guitar cabinets. We call these “Studio
PROFILEs”. The purpose of a Direct Amp PROFILE is to capture the sound of your tube-amp including its power
amp.
When this PROFILE is later run through the internal Class D power amp of your PROFILER, or a separate solid-
state power amp, into a guitar speaker, it will faithfully recreate the sound and feel of the original tube-amp. The
Direct Amp PROFILE can later be merged with the respective cabinet portion of a Studio PROFILE. Alternatively,
Direct Amp PROFILEs can be paired with arbitrary cabinet impulse responses, imported by our KEMPER Cab
Maker™ software. The result is a complete PROFILE that can run a physical guitar cabinet onstage for monitoring,
and simultaneously feed the virtual guitar speaker sound to the main PA.
While it is relatively straightforward to capture Direct Preamp PROFILEs from line level outputs of bass amps, or the
send outputs of preamps, capturing them from tube amps that include the power tube section is a bit more
challenging. It requires you to tap the sound where it is about to hit the guitar cabinet. This tap is the speaker output,
where high voltage and high wattage occur, meaning you will need a dedicated DI box for this purpose. A
specialized DI box like for example the KEMPER DI box can scale down the voltage to a line level signal, suitable for
the PROFILER, on a XLR output jack. The high-power signal is forwarded to the guitar cabinet through a different
output jack.