Xerograph

Iron Ether makes unique effects and synth modules in Portland, Oregon, with particular expertise in bass guitar applications. The Xerograph brings synth-inspired filter design to your pedalboard.

This 4-pole resonant lowpass filter delivers everything from monstrous dubby bass tones to synthy resonant sweeps and wah-like effects. A 2-pole/4-pole switch changes the filter slope character. Resonance cranks to self-oscillation at maximum.

The Frequency knob sets the cutoff point, or connect an expression pedal for foot-controlled filter sweeps. Volume control compensates for resonance boost. All jacks are top-mounted to save pedalboard space.

Relay-based true bypass, 85mA at 9V, measuring 4.7 x 2.5 inches. Hand-painted and machine-engraved. A workhorse filter for bass players seeking synth-like tones.