SR-01

The first stage soft-clips through silicon diodes, with large coupling capacitors that keep low frequencies in the path. The C control biases the second transistor: standard settings favour smoother distortion and sustain, while starving the stage yields gated velcro-style fuzz. A blue button raises first-stage gain for fuzz mode; a white button engages a fixed high-pass filter. The F knob is a first-order low-pass for high-frequency roll-off, and the A attenuator sets instrument level fully clockwise or line level fully counter-clockwise.

G and V set first-stage gain and output level. The maker notes the pedal can get very loud. True bypass and top-mounted mono jacks keep the dry path simple. The manual tips placing it first in the chain, or ahead of other true-bypass pedals.