Big Muff Pi - The Muffn kit

Item number: 1074


Category: Distortion


starting from 42,50 €

Final price incl. VAT, plus shipping (mitttel)


Shipping time: 3-7 Working days


With this kit you can build one of a total of 10 different Muff versions.

  • Rams Head
  • Violet Ram
  • Triangle
  • 3rd Edition
  • Creamy Dreamer
  • Foxy Lady
  • Green Russian
  • Black Russian
  • Civil War
  • Mayo
  • This kit contains the pcb and all necessary parts to build the Standard Build. You can choose an enclosure, please select 3 knobs, up to 20mm diameter, separately. The pots have round 6,3mm shafts, please think of that when selecting the knobs.
    Here´s a list with the parts in the kit: Bill of materials

    This project is by, in cooperation with Musikding. If you have any problem with the content of the kits like missing or wrong parts, please contact Musikding (Klaus). For any technical problem relating to building this project, please contact Barry at forum.

    You get full technical support at the forum. There is even more detailed build information available there:
    GuitarPCB Forum.

    Here´s the direct link to the building docs, including layout and schematic:
    Muffn documentation

    Instrument: Guitar Bass
    Effect-Type: Distortion

    Ratings (10)

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    The most useful review

    1 from 1 Customers found the following product review helpful
    5 from 5 Great pedal!

    Easy to build, some nice and easy mods included in the pcb.
    Great tone

    ., 27.09.2015
    Total entries: 6
    1 from 1 Customers found the following product review helpful
    5 from 5 Great Kit. Great Pedal.

    I assembled mine as green Russian Muff with the diode/LED/no clipping switch and it sounds great. I have a second kit that I will start on soon and add all the advanced modes. Ill probably do the gain staged as a Triangle and the tone stack of the Civil war on that unit. I have no issues with my first build. Everything worked from the first power one. Great kit.

    ., 20.11.2017
    1 from 1 Customers found the following product review helpful
    5 from 5 Great sound

    I built a standard version of the black russian pedal and it sounds great! (Better than the EHX Pi pedal IMHO)

    ., 05.11.2018
    5 from 5 bon materiel et livraison rapide

    le PCB ne correspond pas a la photo
    jai monté le type civil war :le son est tres bon avec les transistors 2N5088
    un peu moins bien avec les Bc549C
    je suis content

    ., 03.06.2019
    5 from 5 Distortion monster!

    The most brutal Multi Muff ever!

    ., 14.06.2019
    4 from 5 Très bon kit


    Je suis satisfait de ce kit. Le son me semble bon, les potentiomètres agissent bien et sont agréables.
    Je lai monté en version Rams Head.

    Une étoile de moins car il manquait la bonne capa à mettre en entrée du premier transistor. Jai du choisir une autre valeur.

    Par ailleurs jai limpression que le clipping na pas une grande influence sur le son... cela vous parait-il normal?

    Je recommande ce kit.


    ., 30.09.2020
    5 from 5 Excellent Kit - with a lot of mods


    I have created the ram version, with addition of the tone TwEQ (3 bands), muff bender and different clipping diode.

    I recommand this kit, it s super reactive.

    ., 22.03.2022
    Total entries: 6

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