My experience with the Big Muff was just like everyone else's, they all sound different and not one of them has any midrange. Upon discovering that NOS Soviet transistors and diodes used in the original GR/BR/CW, the path was clear. The ultimate muff circuit. Volume, Sustain, and Tone, just like you're used to, but with a twist. The gain control has been adjusted in a way that the bottom half is actually usable instead of just kinda sounding... worse. This makes crunchy and distorted sounds available. The tone control is connected to two switches labeled "Mids". within the 6 switch combinations, you get classic scoop, flat, flat with a different center frequency, mids boosted, and mids SUPER boosted with and without a little extra high end sparke. That's too many words to label, so just click around until you find your sweet spot. The boost section is a simple transistor circuit with hard clipping whose status in indicated by the blue or yellow LED. Use this to slam the fuzz into extra saturation, especially now that the lower gain settings actually work. Not enough midrange in a muff, right? Well now there is. LOTS of it. Slava Ukraini! Available while parts last