The Dunlop Billy Gibbons Siete Santos Octavio Fuzz is a Dunlop fuzz pedal, currently around $185. Close alternatives include the Dunlop BFGO7 Billy Gibbons Octavio and the Tru-Fi Octavia Fuzz. It pairs well with the Magnatone Twilighter Stereo 22W Head and the Dumble Steel String Singer.

Dunlop Billy Gibbons Siete Santos Octavio Fuzz

Dunlop · pedal

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.

What stands out

  • “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”

    — from the listing

  • “The Octavio circuit produces a rich, singing fuzz with distinctive octave harmonics that are especially prominent on single notes played in higher neck positions”

    — from the listing

  • “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”

    — from the listing

  • “s frequency balance”

    — from the listing

  • “Strengths: genuine Octavio fuzz character with full, sustained upper-octave harmonics in the Gibbons blues-rock tradition, enhanced by a seven-band graphic EQ that lets players dial in exact frequency balance”

    — from the reviews

  • eq
  • octave
  • harmonics
  • blues rock
  • frequency
  • fuzz
  • octave fuzz
  • rich
Used$185View on Reverb

Price updated Oct 24, 2026

Genres the Dunlop Billy Gibbons Siete Santos Octavio Fuzz is commonly used in

  • Blues Rock
  • Blues
  • Experimental
    citedInferred from shared tonal signals, not a stated genre tag.
  • Alternative
    citedInferred from shared tonal signals, not a stated genre tag.
  • Noise Rock
    citedInferred from shared tonal signals, not a stated genre tag.
  • Rock
    citedInferred from shared tonal signals, not a stated genre tag.

Amps that pair well with the Dunlop Billy Gibbons Siete Santos Octavio Fuzz

Magnatone Twilighter Stereo 22W Head

Magnatone

18% match

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → modulated)

Run fuzzy into Magnatone Twilighter Stereo 22W Head for more modulated on top

Comes later in the signal chain

Dumble Steel String Singer

Dumble

18% match

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → smooth)

Dumble Steel String Singer leans smooth right where the bright tone needs it

Comes later in the signal chain

Gibson Les Paul LP-1 Preamp

Gibson

tonal match

Comes later in the signal chain

Gibson Les Paul LP-1 Preamp layers modulated onto an already fuzzy signal

Magnatone 510

Magnatone

tonal match

Comes later in the signal chain

Magnatone 510 layers modulated onto an already fuzzy signal

Pedals that stack with the Dunlop Billy Gibbons Siete Santos Octavio Fuzz

JHS Tidewater Tremolo

JHS Pedals

22% match
$124.86via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → modulated)

Keep Dunlop Billy Gibbons Siete Santos Octavio Fuzz's octave voice out front: JHS Tidewater Tremolo goes after Dunlop Billy Gibbons Siete Santos Octavio Fuzz in the signal chain so its modulated voice doesn't muddy it

Comes later in the signal chain

Fender Blender

Fender

18% match
$284.16via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → octave)

Fender Blender stacks octave on top of the fuzzy already here

MXR M103 Blue Box

MXR

18% match

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → octave)

Run fuzzy into MXR M103 Blue Box for more octave on top

Electro-Harmonix Deluxe Memory Man

Electro-Harmonix

14% match
$171.62via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → modulated)

Electro-Harmonix Deluxe Memory Man's modulated voice goes after Dunlop Billy Gibbons Siete Santos Octavio Fuzz in the signal chain — it's not there to compete with Dunlop Billy Gibbons Siete Santos Octavio Fuzz's own octave character — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

Fairfield Circuitry Meet Maude

Fairfield Circuitry

14% match
$335.63via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → modulated)

Put Fairfield Circuitry Meet Maude after Dunlop Billy Gibbons Siete Santos Octavio Fuzz in the signal chain, clear of Dunlop Billy Gibbons Siete Santos Octavio Fuzz's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

Ashdown Velvet Compressor

Ashdown

12% match
$242.79via Reverb

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → smooth)

Ashdown Velvet Compressor leans toward compressed, and that's a real, usable character to pair with

Comes earlier in the signal chain

CMATMods Tremoglo

Cmatmods

tonal match
$140.46via Reverb

Comes later in the signal chain

CMATMods Tremoglo goes after Dunlop Billy Gibbons Siete Santos Octavio Fuzz — modulation sits after the gain for a defined swirl

Matthews Effects The Pocket Drive Overdrive Boost

Matthews Effects

tonal match
$105via Reverb

Comes earlier in the signal chain

Matthews Effects The Pocket Drive Overdrive Boost stacks clean boost on top of the fuzzy already here

Cheaper alternatives

Dunlop JH-3S Jimi Hendrix Signature System Octave

Dunlop

66% similarity
$86via Reverb

Shared character: two octave down effect, each note, one octave

Catalinbread Octapussy

Catalinbread

65% similarity
$159.99via Reverb

Shared character: two octave down effect, each note, one octave

Dunlop MXR Octavio Fuzz JD-M267

Dunlop

52% similarity
$143.34via Reverb

Shared character: one octave, lead

Pigtronix Octava Micro

Pigtronix

50% similarity
$97via Reverb

Shared character: two octave down effect, each note, one octave

Fulltone OF-2 Octafuzz

Fulltone

46% similarity
$145via Reverb

Shared character: one octave, fuzz

Boutique & premium upgrades

Keeley Pedal d'octave/fuzz avec choix d'harmonie

Keeley

55% similarity
$282.68via Reverb

Shared character: one octave, singing

Spaceman Nebula Fuzz/Octave Blender

Spaceman

52% similarity
$455.17via Reverb

Shared character: one octave, fuzz, lead

Zvex Octane 3

Zvex

51% similarity
$398via Reverb

Shared character: one octave, lead

JAM Pedals Octaurus

Jam Pedals

50% similarity
$259via Reverb

Shared character: two octave down effect, one octave, singing

Beetronics Swarm Fuzz Harmonizer

Beetronics

93% similarity
$249via Reverb

similar tone character

Keeley Octa Psi

Keeley

93% similarity
$249via Reverb

similar tone character

Similar charactersee all similar tone character →

Dunlop BFGO7 Billy Gibbons Octavio

Dunlop

73% similarity

Shared character: each note, one octave, singing

Tru-Fi Octavia Fuzz

Tru Fi

62% similarity
$199.95via Reverb

Shared character: two octave down effect, each note, one octave

Tru-Fi Super Fuzz PBF Compact Version

Tru Fi

54% similarity
$199.95via Reverb

Shared character: one octave, fuzz, full

Suhr Rufus, Black Edition

Suhr

52% similarity

Shared character: one octave, fuzz, full

T-Rex Octavius

T Rex

50% similarity

Shared character: each note, one octave, lead

Black Cat Pedals Super Fuzz

Black Cat Pedals

48% similarity
$237.50via Reverb

Shared character: two octave down effect, one octave, fuzz

See all alternatives to the Dunlop Billy Gibbons Siete Santos Octavio Fuzz (cheaper + boutique) →

Questions people ask

What are good alternatives to the Dunlop Billy Gibbons Siete Santos Octavio Fuzz?+

The closest matches in character are the Dunlop BFGO7 Billy Gibbons Octavio, the Tru-Fi Octavia Fuzz, the Tru-Fi Super Fuzz PBF Compact Version. Budget picks: Dunlop JH-3S Jimi Hendrix Signature System Octave, Catalinbread Octapussy, Dunlop MXR Octavio Fuzz JD-M267. Boutique upgrades: Keeley Pedal d'octave/fuzz avec choix d'harmonie, Spaceman Nebula Fuzz/Octave Blender, Zvex Octane 3.

What pairs well with the Dunlop Billy Gibbons Siete Santos Octavio Fuzz?+

Strong matches from rig and tone-complementarity evidence: Magnatone Twilighter Stereo 22W Head, Dumble Steel String Singer, Gibson Les Paul LP-1 Preamp — Run fuzzy into Magnatone Twilighter Stereo 22W Head for more modulated on top.

How much does the Dunlop Billy Gibbons Siete Santos Octavio Fuzz cost?+

Around $185 (live listing price, updated Oct 24, 2026).

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