Cheers Ratman thanks for the reply, the reason a pedal option to drive the gain would be good is my 'clean' bass which is active has a considerably stronger signal than my 'distorted' bass which is passive. Hitting the button, allowed me to set the gain so the volumes were quite similar. But I couldn't be bothered walking over to my amp so I just used a pedal to add grit. I'm looking at a 2 channel pre at the moment so I can have seperate EQs and levels and I also need an option for the upright. So that might be the thing to allow me to have the gain always on.