Home › Forums › Help/Technical Questions › Make Bass Muff sound like Black Russian tall version, 6 screw

Viewing 4 posts - 1 through 4 (of 4 total)
  • Author
    Posts
  • February 7, 2014 at 8:30 pm #83342
    gemather
    Member

    If you buy one, there is missin still 2 parts.

    Why do not insert

    39nF at R42
    100jF at C8

    to make the Bass Muff Pi sound original like e-guitar effekt
    the Black Russian Big Muff Pi tall version 6 screw.

    February 8, 2014 at 4:56 pm #119667
    gemather
    Member

    I did the mods on the Bass Muff last year.
    I bought the Black Russian Muff yesterday.
    They are that close.

    If i remember correctly, R42 affects only the boost funktion.
    Pushes it from a bass boost to LPB1/HardOn like boost.
    And C8 seems to be part of the low pass filter of the tone stack.

    Today i will find some resistor in R42 instead of the capacitor
    i used to fit in.

    Did you like the Bass Muff for guitar?

    February 10, 2014 at 8:06 pm #119681
    gemather
    Member

    This is my conclusion:

    1kohm at R42,
    restore highs, with the boost,
    when bass is full engaged at the tone stack.

    May 26, 2014 at 2:51 pm #120000
    gemather
    Member

    UPDATE:

    In a regular Big Muff, the low pass filter in the tone stack
    is build by R8 and C8.

    The Bass Muff differs in R8 from the Green Russian Muff specs.
    R8 is 11,5kohm instead of 20kohm in the original circuit.
    I took a 68kohm resistor in parallel to R8.

    C8 was completely missin, so i took .01uF there.

    Now my Bass Muff sounds almost similar to a Russian Muff.

    I had some experiment with the emiter resistor of Q1, too.

  • Author
    Posts
Viewing 4 posts - 1 through 4 (of 4 total)
  • You must be logged in to reply to this topic.