Brown Muff ZIMcard produces a great lead tone that falls somewhere in between Fuzz and distortion. It's ZIM's take on the Big Muff Pi. This is a modified version of the transistor muff. Silky smooth sustain and classic tone. Brown Muff really shines when used in the B channel of ZIM. It's rich tone and harmonics give the voicing circuit a lot to work with, creating endless vintage fuzz tones.
Note: Due to the larger size of the BM ZIMcard, you can not use it in a Mini-ZIM with a 9-Volt battery. It fits fine with no battery installed.