Ivy Pedals is proud to introduce the Doctor Filter analog 2-pole HPF and LPF filter effects pedal. This effect is a band-pass filter- NOT an EQ- so the filter knobs set the minimum and maximum frequencies allowed to pass. 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.

Images show both pedals available, I built a batch of three and one of them is mine.

~ Demo added! ~

Controls:

HPF - sets the minimum frequency (13Hz - 1.3kHz) Default= 0

LPF - sets the maximum frequency (1.25kHz - 22kHz) Default= 10

Level - Output Volume (boost/cut/unity)

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

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

SEE PICS - SEE DEMOS - ASK ME ANYTHING

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

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ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
Brand
Model
  • Doctor Filter
Finish
  • Black / Green
Categories
Year
  • 2026
Made In
  • United States

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Ivy Pedals

Eugene, OR, United States
Joined Reverb:2023

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