UAFX Knuckles ’92 Rev F Dual Rec Amplifier Overdrive Effects Pedal

Take Your Overdrive to the Next Level – The UAFX Knuckles ’92 Rev F Dual Rec Amplifier Overdrive Effects Pedal

Knuckles ’92 Rev F Dual Rec Amplifier Overdrive Effects Pedal 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 mix/speaking 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 famous 1992 Rev F Dual Rec high gain amplifier tone that fueled punk, alt rock, and metal from the ’90s onward
• Powerful UFAX 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

SPECIFICATIONS

• Power Requirements: Isolated 9VDC, center-negative, 400 mA minimum
• Inputs: 2 x ¼” TS (right input for stereo connections and 4-cable mode)
• Outputs: 2 x ¼” TS (right output for stereo connections and 4-cable mode)
• USB Type-C for updates via computer
• Height: 2.56” (6.5 cm)
• Width: 3.62” (9.2 cm)
• Depth: 5.55” (14.1 cm)
• Weight: 1.24 lbs (0.567 kg)

Manufacturer: Universal Audio
Model: GPM-KNUC
SKU: I796983-N-2-WHXA
UPC: 819937004551

We are Chuck Levin’s Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.