Discover the searing high-gain tone that powered legendary alt-rock and metal bands from Foo Fighters and Incubus to Metallica, Tool, and more.*

With six classic mic/speaker pairs, a built-in TS-style OD/boost, and noise gate, Knuckles '92 puts the authentic, genre-defining sound of one of the fiercest high-gain amps ever made under your boots.

Plug into the iconic 1992 Rev F Dual Rec amp tones that fueled punk, alt-rock, and metal from the '90s onward**

Dial in a genre-defining tone with TS-style overdrive, preamp boost, noise gate, channel switching, and more

Experience six classic mic/speaker pairs used on classic alt-rock anthems and metal records

Play presets designed by dual-recording specialists; or customize and save your own tones in the UAFX Control mobile app

Plug into the California King of High Gain

Whether you’re after the gritty, powerful chords of punk and the alternative anthems of Dave Grohl and Incubus or the complex aggression of bands like Metallica and Dream Theater, Knuckles ’92 puts one of the most versatile multichannel amps ever created right on your pedalboard.*

Discover a Range of Rectifier Tones

Use the famous Green, Orange, and Red channels to explore everything from pristine cleans to crushing crunch and searing lead. Then experiment with EL-34 or 6L6 power tubes and switch between solid-state and tube rectifiers for the ultimate in control and feel under your fingers.

Play with Perfect Preamp Boosts

The Knuckles '92 features a classic TS-style overdrive, a proven component for precise, articulate playing, and an onboard preamp boost, famous for its sculpted modern metal tones. And its built-in noise gate gives you clean sound even at mind-blowing gain levels.

Get Six Epic Pairs of Mics and Cabs

With six pairs of mics and cabs used on countless iconic records, the Knuckles '92 captures the essence of playing with one of the most aggressive guitar amps ever made.

Three stock cabinets • UK V30: Marshall 4x12 cabinet

with V30s** • CA V30: Oversized 4x12 cabinet

with V30s • White 75: Marshall 4x12 cabinet

with Celestion 75s**

Three bonus cabinets †

• 1x12 EV12 **

• 4x12 Celestion 80 **

• 4x12 Brown

† Available with the UAFX Control mobile app

Customize your sound with the UAFX Control app

Unlock deep customization with the UAFX Control mobile app. Adjust hidden controls, save boosts and noise gate settings, and even change output tubes and rectifier modes. Plus, explore artist presets created by the world’s best metal guitarists and dual-recording specialists.

Manufacturer’s warranty does not apply.