Sometimes the best ideas come from happy accidents. The JHS Fumble traces its roots to an unexpected mix-up during the development of the NOTADÜMBLË DIY kit, when JHS accidentally included the wrong "clean" circuit. Rather than disappearing into obscurity, that mystery circuit quickly developed a following of its own. The Fumble is that accidental circuit as a standalone pedal, delivering the sought-after sound in a compact, ready-to-play format.
At its core, the Fumble is a simple but remarkably effective JFET clean boost inspired by Howard Dumble's legendary BBC-1, which is actually a JFET preamp lifted almost part for part from a Barcus Berry acoustic preamp made in the 1970s. It adds clarity, presence, and touch-sensitive dynamics without dramatically altering the character of your guitar or amplifier. Whether used as an always-on tone enhancer, a boost into overdrive pedals, or a way to push a tube amp into richer harmonic territory, the Fumble excels at making a great rig sound even better.
Its two-knob layout is deceptively versatile. The Output control serves as a master volume, while the unique Input control simultaneously shapes low-end response and input gain. Turn it up for a fuller, more robust voice, or back it off to tighten the lows and sharpen your attack. The result is a boost pedal that feels more interactive and amp-like than most traditional clean boosts.
Simple, affordable, and packed with character, the Fumble proves that even a mistake can become something worth celebrating.
Specifications
- Circuit Type: JFET clean boost
- Controls: Input (bass and gain attenuation), Output (master volume)
- Switching: True bypass
- Power: 9V DC center-negative
- Current Draw: 5mA
- Made in Kansas City, Missouri