The California King of High Gain

Knuckles '92 Rev F Dual Rec Amplifier delivers the searing high-gain tone that powered legendary punk, alt-rock, and metal bands from Foo Fighters and Incubus to Nevermore, Dream Theater, and more.* With six classic mic/speaker pairings, built-in TS-style OD/boost, and noise gate — Knuckles puts the authentic genre-defining sound of one of the world's most ferocious high-gain amps under your boots.

Key Features

• Plug into the famous 1992 Rev F Dual Rec high gain amplifier tone that fueled punk, alt-rock, and metal from the ‘90s onward.
• Powerful UAFX dual-engine delivers the most authentic emulation of the amp ever placed in a stompbox.
• Dial in genre-defining sound with built-in TS-style overdrive, preamp boost, noise gate, channel switching, output tubes and selectable solid-state or tube rectification.
• Experience groundbreaking physical room modelling derived from UA’s award-winning OX Amp Top Box.
• Experiment with six classic mic/speaker pairings used on classic ‘90s alt-rock and metal records.
• Play presets designed by UA’s tone gurus, dual-rec specialists and artists, or customize and save your tones in the UAFX mobile app.

CABINET MODELS

UK V30: 4x12 British cab with V30’s
CA V30: 4x12 Oversized American cab with V30’s
White 75: 4x12 British cab with Celestion 75’s

3 Bonus Cabs*
(Available with UAFX mobile app)
1x12 EV12, 4x12 Celestion 80's, 4x12 Brown