Howard demonstrating the giant range of dynamic response of the Catalinbread WIIO. As you can see and hear the WIIO responds remarkably well to instrument volume knob as well as picking attack. The bass track was added plugged into the WIIO as well. The point of this pedal is FEEL and dynamic response. You feel the power potential behind it. You know it is still there when you roll back your volume, you certainly know it is there when you roll it up!!