Doctor Filter

Ivy Pedals is proud to introduce Doctor Filter analog 2-pole HPF and LPF filter effects pedal. This effect is a band-pass filter, so the filter knobs set the minimum and maximum frequency. This is NOT an EQ, it is a filter. Volume control, with gain, included for level compensation; boost/unity/cut. These are bufferd 2-pole RC filters with 1% resistors and manually-matched capacitors for optimal filter performance. This effects pedal is designed for those who want to carefully shape their tone with the use of subtractive filters. The overall frequency range- with both filter knobs maxxed out, is 13Hz - 22kHz - which should be more than enough.

Controls:

HPF - sets the minimum frequency (13Hz - 1.3kHz)

LPF - sets the maximum frequency (1.25kHz - 22kHz)

Level - Output Volume (boost/cut/unity)

[Internal] Gain trimmer - sets the maximum output gain, add or remove gain

True Bypass switching, green knobs and indicator LED, input on right/output on left. Handmade in Oregon. Accepts standard pedal power supplies, and is rated for 9v-18v DC center-negative power inputs. Designed and first built in Summer 2026.