User Manual
KEMPER PROFILING AMPLIFIER30
Gate 2:1
This noise gate is a soft expander, with an expansion ratio of 2:1. That means when the guitar has decayed
to half its level below the treshold, it will be attenuated even more, resulting in a quarter of the original
level. It is triggered earlier than the 4:1 gate, and the eect is more subtle.
Gate 4:1
This noise gate is a more aggressive expander, with an expansion ratio of 4:1. That means when the guitar
has decayed to half its level below the treshold, it will be attenuated even more, resulting in one eighth of
the original level. It is triggered later than the 2:1 gate, and with a more aggressive eect.
As with the existing noise gate, there are no attack or release controls, as we have selected the shortest
possible times without introducing any signal degradation. The attack time is 0.05 ms (that’s 50 microsec-
onds, or one twenty-thousandth of a second), while the decay time is 50 ms. You can use the Noise Gate
Stomps in combination with the noise gate in the input section to benefit from the dierent noise gate
characters.
Distortion Stomps
(red)
The KPA oers a variety of distortion stomps that have been modeled on vintage guitar distortion pedals.
Every one of these classic pedals is famous for its distinctive character, and has been exploited by some of
the greatest guitar heroes of all time. We have carefully modeled the distortion curves and tonal character-
istics of these legendary eects, including the original tone controls.
Drive
Use this to boost the gain of the signal as it comes into the distortion stage - the higher the gain, the more
distorted the sound.