Bit depth and sample rate are the two things the 3 Series Bit Crusher strips away, with a filter to shape whatever is left. Crush runs from full 24-bit resolution down to 1-bit, moving from grain and texture into square-wave grind and gated digital distortion. Sample Rate drops from 32.768kHz to 2.5Hz, bringing in aliasing that goes from faint harmonic shifts to a metallic, ring-mod-like clang and finally a full digital breakdown.
Filter and the Type toggle decide the character. Toggle down is a second-order low-pass with no resonant peak, inspired by vintage synths like the Oberheim, and full-bodied enough to suit bass. Toggle up sweeps a high-pass and a low-pass in succession to focus a strong band of mids, close to the small speaker of a handheld game console. JHS designed the circuit from scratch around a zero-hole filter, a signal-processing idea it says had never found a practical use before this pedal.
For gain that behaves like a pushed amp, the 3 Series Overdrive and Distortion are the ones to look at. This one is for sounds that are meant to come out digital.
SPECIFICATIONS
SPECS
Country of Origin: United States
Effect: Bit crusher
Bit Depth: 24-bit to 1-bit
Sample Rate: 32.768kHz to 2.5Hz
Filter: Zero-hole filter
CONTROLS
Crush: bit depth
Sample Rate: sample rate
Filter: corner frequency, fully clockwise is unfiltered
SWITCHES
Type: down, second-order low-pass; up, high-pass and low-pass swept in succession
POWER
Power: 9V DC center negative
Current Draw: 65mA
DIMENSIONS
Length: 4.42"
Width: 2.38"
Height: 1.22"



