Knuckles '92 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.*

Giving you six classic mic and 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.

Plug into the California King of High Gain

Whether you seek the gritty power chords of punk and alternative anthems by the likes of Dave Grohl and Incubus or the complex aggression of Nevermore and Dream Theater, Knuckles ‘92  puts one of the most versatile multi-channel amps ever made right on your pedalboard.*

Explore a Range of Rectifier Tones

Use the famed green, orange, and red channels to explore perfect cleans to bone-crushing crunch and smoldering lead sounds. Then experiment with EL-34 or 6L6 power tubes and switch between solid-state or tube rectifiers for ultimate control and feel under your fingertips.

Play Through Perfect Preamp Boosts

Knuckles '92 is equipped with a classic TS-style overdrive — a tried and true component for tight, articulate playing — and an integrated preamp boost that’s famous for sculpted modern metal tones. And with its built-in noise gate giving clear sound even at extreme gain settings, you’ll melt faces the minute you power it up.

Get Six Epic Mic & Speaker Pairings

Experiment with six mic and speaker pairings used on countless iconic records. From alt rock anthems to de-tuned nu-metal brutality, Knuckles ‘92 captures the full essence of playing through one of the greatest aggressive amps ever made.*

• UK V30: 4x12 Marshall cab with V30’s
• CA V30: 4x12 Oversized cab with V30’s
• White 75: 4x12 Marshall cab with Celestion 75’s
• 3 bonus cabs: 1x12 EV12, 4x12 Celestion 80, 4x12 Brown*

*Available with UAFX mobile app.

Customize Your Sound with the UAFX App

Unlock deep customization with the UAFX mobile app, allowing you to tweak hidden controls, save boosts and noise gate settings, and even change output tubes and rectifier modes.

Plus, explore artist presets crafted by the world's top metal guitarists and dual-rec specialists.

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 modeling derived from UA’s award-winning OX Amp Top Box
• Experiment with six classic mic/speaker pairings as 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 own tones in the UAFX mobile app