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Wah Level - Knob 4 adjusts the Wah Level. Ranges from 0dB to +12dB.
Compressor
A Compressor is used to increase sustain, tighten up guitars, and prevent the signal from clipping the input of other effects. It sets a maximum boundary for the strength of a signal.
Comp Model - Knob 1 selects one of two Compressor models: DIGCMP (DigiTech® Compressor) or CSCOMP (Based on a Boss®
Sustain - Knob 2 adjusts the amount of sustain. Ranges from 0 to 99.
Tone/Attack - Knob 3 adjusts the tone for the DigiTech Compressor, or attack for the Boss
Compressor Level - Knob 4 adjusts the Level from the Compressor. Ranges from 0 to 99.
Attack
Distortion
The RP255 models the tones of 13 popular distortion stompboxes, each of which can be tweaked and modified, just like the real thing.
Distortion Model - Knob 1 selects one of 13 Distortion models. Press this knob to turn the Distortion on and off.
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