Dunlop Billy Gibbons Siete Santos Octavio Fuzz vs Keeley Octa Psi
The Dunlop Billy Gibbons Siete Santos Octavio Fuzz and the Keeley Octa Psi are both pedals sharing harmonically rich. The Dunlop Billy Gibbons Siete Santos Octavio Fuzz leans octave and sustaining. Current prices: $185 vs $249.
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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.44% — somewhat different
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Derived from overlapping tonal signals across both listings.- harmonically rich
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$185via Reverb
$249via Reverb
This is the Dunlop Billy Gibbons Siete Santos Octavio Fuzz, a Jim Dunlop signature pedal endorsed by Billy F. Gibbons of ZZ Top (the display name 'Sieste Santos' is a typo of the product's real name, 'Siete Santos'). It combines the Octavio fuzz circuit, which layers an upper-octave harmonic overlay onto the fuzz signal, with a seven-slider graphic EQ spanning 100Hz to 6.4kHz with up to 18dB of cut or boost per band, letting players precisely shape the Octavio fuzz's frequency balance. The Octavio circuit produces a rich, singing fuzz with distinctive octave harmonics that are especially prominent on single notes played in higher neck positions. It suits blues-rock players wanting Gibbons-style Octavio fuzz with the added ability to dial in the exact EQ balance of the fuzz output, rather than a simple fixed-voice octave fuzz.
The Keeley Octa Psi is an octave fuzz pedal from Keeley Electronics delivering upper and lower octave fuzz saturation with a psychedelic, synth-like character suited to experimental and psychedelic rock. The circuit produces harmonically layered saturation with octave overtones that add otherworldly quality to guitar tones. Used for experimental, psych rock, and progressive guitar applications.
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Genres this gear is documented as being used in.- Blues Rock
- Blues
- Electronic
- Experimental
- Rock
- octave
- sustaining
- full