The idea behind the Bass Solaris was to create a simple fuzz box for bass guitar that would do a few tones well, a fuzz without fuss. To this end the gain is pre-set to max, the volume control of your guitar can be used to change the tone so don't forget to experiment. However, for the working musician we decided to add the sustain control and swap out the Norm/Norm+ toggle switch for a boost foot switch to make it more functional for live show applications. Hence the Bass Solaris version was born and comes standard with two halo light rings fitted.