The MUFF’N v4 2022 is a DIY PCB that allows you to build various versions of the Big Muff Pi pedal. It offers 10 stock Muff variants, including Rams Head, Violet Ram, Triangle, 3rd Edition, Creamy Dreamer, Foxy Lady, Green Russian, Black Russian, Civil War, and Mayo. Additionally, it provides the option to include 7 popular mods using a unique jumper system designed into each board.

The MUFF’N v4 2022 features a 1N5817 circuit protection diode instead of the previous 1N4001 diode. Apart from this change, everything else remains the same.

One of the standout features of this PCB is the ability to easily insert the Tone TwEQ 3 Band Active EQ, which bypasses the traditional BMP passive tonestack. This allows for a more versatile Big Muff Pi project.

The 7 popular mods that can be included using the jumper system are High Pass, Low Pass Filter, Mid Scoop Control, Muff Bender, Switchable BMP Tone Control Bypass, Switchable Silicon (stock), Opamp or LED clipping.

Overall, the MUFF’N v4 2022 is considered the best DIY PCB available for building Big Muff Pi pedals due to its wide range of stock variants, the option to include popular mods, and the ability to incorporate the Tone TwEQ 3 Band Active EQ.

Summary created by AI from the original source.