Wattson Classic Electronics FY-2 Fuzz Owner's Manual - page 7
7
How Your Guitar Affects The Tone
The FY-2 Fuzz circuit is very sensitive to the level of the signal coming into the
circuit. A higher signal level will result in more distortion, even without
changing any of the controls on the pedal. Conversely, a lower signal level will
result in less distortion.
The circuit was originally designed in the 1960's based on typical guitar
pickups that were available at the time. Because of this, you'll get a good fuzz
tone with a single coil standard output pickup, and the guitar volume on
maximum. The fuzz will clean up dramatically as you roll back the volume on
the guitar.
The circuit was not designed to accomodate the signal level coming from a
high output pickup, or a pickup with an integral amplifier. If the signal level
going into the FY-2 Fuzz is too high then the signal coming out is going to
sound excessively raspy and brittle. You may have to roll the guitar volume
down considerably before it will clean up.
No matter what kind of pickups you use, you'll want to experiment with the
volume level on your guitar to find the fuzz tone you prefer.