The Rangemaster is a classic boost pedal that has been updated for the mbp 2020 version. It now includes a polarity inverter, a three-position switch for treble, mid, and full range boost, and some utilitarian mods for quiet operation.

The BOOST control allows you to add up to 20db of warm boost to your signal. The T/S/F switch lets you choose between thick, skinny, and fat boost options. The treble boost is in the middle position of the switch.

There is also a DIP switch that adds optional pulldown resistors for the input and output. This can be used to eliminate any popping sounds when engaging the bypass footswitch.

For more information on the history and operation of the Rangemaster, you can refer to the provided links.

Summary created by AI from the original source.