Big John's Effects are

Completely made & handwired in Belgium
Point-to-Point wiring for better connection & sound
Best quality components, switches, alpha pots, thicker wiring
Beautifull layout & moog-style knobs
9Vdc simple adaptor connectivity (no battery, better for nature!)
Low noise performance at loud volumes
Indestructible die-cast housing
True hardwire bypass

The Big John Granny Puker will give you a dirty octave (down) sound & weird distortion effects.

Functions are: volume control, mixer control (mix-in the amount of octave down), Puke control (adjusts the amount of distortion).

You can use the Granny Puker as a distortion box: turn the mixer knob to the minimum (good for chords).

You can use the Granny Puker as a dirty octaver: turn the mixer knob to the maximum (good for melodies).

This stompbox is designed for guitar as well as for bass guitar.