Fulltone Ultimate Octave

The Fulltone Ultimate Octave is exactly what you want it to be: a smooth BC108 transistor fuzz with an active tone circuit, plus a second footswitch to kick in a searing Octave Up on command. Handmade in the USA, it delivers thick, harmonically rich fuzz and glassy octave-up textures with the feel and cleanup that made the original a cult favourite.

FAT / BRIGHT — TWO VOICES

The Fat/Bright switch changes the entire contour, affecting both the fuzz and the octave. Choose the thicker, mid-forward Fat setting, or the more open Bright setting with defined highs and a slightly scooped mid-range. It isn't fussy about guitar choice either — tracking is solid on any pickup, most anywhere on the neck, though the neck pickup gives the most pronounced octave clarity. Want more octave? Turn Tone up, back Distortion down a touch, and raise Volume. Simple.

THE ORIGINAL CIRCUIT, UNTOUCHED

This is the original circuit, with no re-voicing and no updates to the sound. It delivers the original tone in a chassis that is now less than half the width of its predecessor. The two-footswitch layout stays, the Fat/Bright switch still does the heavy lifting, and the feel and cleanup are exactly what made the Ultimate Octave a favourite.

TECH SPECS

• BC108 transistor fuzz with active tone control
• Second footswitch for on-demand Octave Up
• Fat/Bright voicing switch
• Top-mounted input, output and DC jacks
• Runs on 9V–18V DC (center negative)
• Handmade in the USA