Loud
controls the distortion output level of your guitar signal
Low
adjusts boost and cut of bass frequencies
High
adjusts boost and cut of high frequencies
Grunge
controls distortion gain from moderate to extreme
Dual
Outputs. The Amp output is for connecting directly to a guitar amplifier. The Mixer output’s Cabinet
Emulation circuitry gives you an authentic miked guitar amp sound when plugged direct into a mixing board or recording device