Diamond Pedals F-Octave

The Return of an Icon

Originally launched in 2017, the highly anticipated Diamond Pedals F-Octave is back in the lineup. Designed as a loving tribute to the legendary early '70s Foxx Tone Machine, this high-gain silicon fuzz delivers the biting saturation, chewy sustain, and unmistakable octave-up grind that earned its predecessor a spot in the fuzz hall of fame. The F-Octave picks up where that legacy left off, offering raw, expressive vintage tones with a modern character all its own.

At its core is a finely tuned, discrete analog fuzz circuit engineered for rich harmonic content and dynamic touch response. Whether you are chasing garage grit, psychedelic textures, or heavy stoner rock saturation, the F-Octave plays beautifully with both guitar and bass.

Two Modes: Fat Fuzz & Searing Octave

Stay true to the spirit of classic stompboxes with an intuitive layout that packs immense sonic flexibility:

• Octave Mode (On): Unlock searing, upper-register harmonics that aggressively cut through any mix with a vintage, synth-like texture. It shines especially bright when playing single notes above the 12th fret, or creates gnarly, twisted multi-octave overtones during double-stop bends.
• Standard Fuzz (Off): Switch the octave off to reveal a remarkably warm, fat fuzz. Bursting with a wooly midrange and smooth compression, it's the perfect foundational tone for massive leads, thick chords, and riff-driven grooves.

Fine-Tune Your Fuzz

Take complete command of your fuzz texture with our interactive LPF (Low Pass Filter) and TONE controls, specifically designed to shape your sound and highlight the upper octave.

• Tone Control: Emphasize your ideal frequency footprint. Turn it counterclockwise for warmer, darker textures, or push it clockwise for a brighter, more aggressive fuzz (Center Frequency: 750 Hz +/- 6 dB).
• LPF Control: Dial back the LPF to smooth out the harsh high-end transients and refine your tone to perfection (Cutoff Frequency: 2 KHz -3 dB).

The New Standard in Pedalboard Utility

Engineered for modern players, the F-Octave delivers unpredictable vintage fun in a highly reliable, space-saving format. Complete with modern top-mounted jacks, soft-touch relay true bypass switching, and standard 9-18VDC operation, it cleans up beautifully when you roll your volume back—from sputtery breakup all the way to thick, howling sustain.

Technical Specifications

• Effect Type: Silicon Fuzz and Octave-Up
• Circuitry: Discrete Analog
• Switching: Soft-touch Relay True Bypass
• Input / Output: Top-mounted jacks
• Input Impedance: Greater than 1 MΩ
• Output Impedance: Less than 10 KΩ
• Tone Frequency: 750 Hz (+/- 6 dB)
• LPF Frequency: 2 KHz (-3 dB)
• Power Requirements: 9-18 VDC (negative tip, 2.1mm barrel)
• Current Draw: 10 mA @ 9V
• Dimensions: 4.8" x 2.64" x 1.58" (122 x 66.98 x 39.64 mm)
• Weight: 280g
• Origin: Proudly designed and hand-built in Montreal, Canada.