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Product Description
The DOD Envelope Filter 440 is a classic auto-wah-style effects pedal designed primarily for guitar and bass. It functions by dynamically altering the tone of your instrument based on how hard you play, creating a funky, vocal-like “wah” effect without the need for a treadle. Originally released in the 1970s and reissued with modern updates, the 440 features controls for Level, Range, and Sensitivity, allowing musicians to tailor the response and sweep of the filter to match their playing style. Known for its vintage character, responsive touch sensitivity, and analog warmth, the DOD 440 is prized for funk, rock, and experimental tones, offering expressive filter effects that react to picking intensity and note attack.
Product Specs/Additional Information
Type:
Analog envelope filter (auto-wah)
Controls:
Level – Adjusts output volume
Range – Selects sweep direction (up or down)
Sensitivity – Controls the filter’s response to playing dynamics
Switches:
True bypass footswitch
Range toggle switch – Sweep up or sweep down
Inputs/Outputs:
Input: 1 x 1/4″ (instrument)
Output: 1 x 1/4″ (mono out)
Power:
9V DC power supply (center-negative)
Also supports 9V battery operation
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Product Description
The DOD Envelope Filter 440 is a classic auto-wah-style effects pedal designed primarily for guitar and bass. It functions by dynamically altering the tone of your instrument based on how hard you play, creating a funky, vocal-like “wah” effect without the need for a treadle. Originally released in the 1970s and reissued with modern updates, the 440 features controls for Level, Range, and Sensitivity, allowing musicians to tailor the response and sweep of the filter to match their playing style. Known for its vintage character, responsive touch sensitivity, and analog warmth, the DOD 440 is prized for funk, rock, and experimental tones, offering expressive filter effects that react to picking intensity and note attack.
Product Specs
Type:
Analog envelope filter (auto-wah)
Controls:
Level – Adjusts output volume
Range – Selects sweep direction (up or down)
Sensitivity – Controls the filter’s response to playing dynamics
Switches:
True bypass footswitch
Range toggle switch – Sweep up or sweep down
Inputs/Outputs:
Input: 1 x 1/4″ (instrument)
Output: 1 x 1/4″ (mono out)
Power:
9V DC power supply (center-negative)
Also supports 9V battery operation




