The GSP1101 possesses all of the great clean and overdrive amp tones that I have always wanted for the stage and in the studio. Extremely versatile, yet very easy to quickly find your way around to design all of your dream presets. New paradigm in preamp/processors. We looked at the needs of the professional guitarists who already get their core tone with their amps, guitars and fingers. The pros wanted to do everything from just adding a few effects to their existing tone to creating entirely new sounds with a single rack-mount preamp/processor.