DigiTech DOD Envelope Filter 440 vs Electro-Harmonix Riddle Q Balls
The DigiTech DOD Envelope Filter 440 and the Electro-Harmonix Riddle Q Balls are both pedals sharing dynamic. Current prices: $107.41 vs $152.40.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.58% — moderately similar
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Genres both listings are associated with.- Funk
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Derived from overlapping tonal signals across both listings.- dynamic
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$107.41via Reverb
$152.40via Reverb
The DOD Envelope Filter 440 is a classic analog envelope filter and auto-wah pedal originally produced by DOD Electronics in 1977, delivering pick-attack-responsive filter sweeps with Sensitivity and Range controls. The DOD 440 became a widely used auto-wah with players including Jerry Garcia, who used it on the Grateful Dead's recordings. Later reissued under the DigiTech/DOD brand. An important pedal in envelope filter history.
The Electro-Harmonix Riddle is a Q-Balls style guitar envelope filter pedal from Electro-Harmonix, delivering pick-attack-responsive auto-wah filter sweeps with Q, Range, Mix, and Drive controls. The Riddle produces funky, dynamic filter sweeps that follow playing dynamics with adjustable Q resonance for sharp filter peaks and Drive for adding harmonic content. Operates in both guitar and bass frequency ranges via Range control.
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Genres this gear is documented as being used in.- Electronic
- Rock
- Experimental
- Soul