J. Rockett Audio Designs Controls • Gain: Turned to the right it increases gain, turned to the left it reduces gain. • Tone: A subtle control to adjust the highs and smoothness. • Fat: A subtle, low-end trim. This control enables you to make adjustments when going from humbucker pickups to single coil pickups. • Volume: Turned to the right it increases the volume, turned to the left it decreases the volume. • Hot Switch: When switched up it adds more gain and bite in addition to a slight midrange push. Settings The Blue Note OD was designed to be an extremely transparent, low gain OD pedal for the blues. The objective was to create a pedal that does not take away from the natural tone of your amp or guitar. The schematic is very simple and this allows for a subtle, yet effective EQ section. You also have the ability to add a bit more bite and gain when engaging the hot switch. All J. Rockett Audio Designs pedals operate off of the standard BOSS type 9 volt adapter or a single 9 volt battery. The power input is a 5.5 mm x 2.1 mm jack with the positive voltage on the outer sleeve. Using an external power supply will automatically disconnect the battery. Disconnect the input jack to preserve battery life when not in use or when not used with an appropriate, external power supply. 2.1mm x 5.5 mm tip/negative plug