Xerograph Lowpass Filter

The Xerograph is a fat, synth-inspired 4-pole resonant lowpass filter. It offers a wide variety of filter sounds, from monstrous dubby bass, to synthy resonant filter sweeps, and wah.

Standard Features:

• 2-pole/4-pole switch:
  • 2-pole mode is a classic, funky filter with a wide, vocal-like resonance peak.
  • 4-pole mode offers a fat, deep, and synthy filter with a sharp resonance peak.
• Frequency knob: When using the filter without an expression pedal, this control sets the cutoff frequency of the filter, allowing you to dial in deep, dubby bass sounds. When using an expression pedal with the Xerograph, the Frequency knob sets the low extent of the filter sweep.
• Resonance knob: Boosts frequencies around the cutoff frequency, which intensifies the effect of the filter. Set the resonance low for more subtle tone-shaping, or turn it up to around 3-o’clock for wet synth sound. Turning it to maximum sends the filter into self-oscillation.
• Volume knob:  Allows the user to set the output volume of the effect, ranging from quieter than the bypassed signal, to boosted.
• Frequency expression jack: Connecting a passive expression pedal to the expression jack allows you to control the frequency of the filter with your feet, allowing for slow, resonant sweeps, or fast, funky squelches.
• Measures 4.7″ x 2.5″ (12cm x 6.3cm). Runs on industry-standard 9 volt DC center negative power supply.
• Relay-based true bypass.
• Audio and expression jacks on the top of the pedal to save even more pedalboard space.

• You’ll need an expression pedal to get the most out of the Xerograph.   The Moog EP-2 is a good choice.
• Using a fuzz before the Xerograph is highly recommended for the wettest synth-style filter sweeps. The Oxide was developed to pair especially well with the Xerograph.