Universal Audio UAFX Knuckles '92 Dual Rec Amplifier Pedal

Universal Audio UAFX Knuckles '92 Dual Rec Amplifier Pedal - Image 2

Universal Audio UAFX Knuckles ’92 Dual Rec Amplifier Pedal

Name: Universal Audio UAFX Knuckles '92 Dual Rec Amplifier Pedal
Brand: Universal Audio UAFX
SKU: GPM-KNUC
Availability: InStock

Retailing in the region of £299.00

On the menu for January 2026 are the Universal Audio UAFX Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Universal Audio UAFX Guitar Pedals today.

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Description

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Unleash super tight & powerful distortion and 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! Gritty power chords? Check. Complex aggression? Absolutely.

Choose from six classic microphone & speaker pairings, add a TS-style overdrive boost, and tame the genre-definingly powerful tone with the noise-gate via the UAFX mobile app! Knuckles ’92 puts one of the most versatile multi-channel amps ever made right on your pedalboard.

UAFX 2.0 Update: MIDI Control, Better Bluetooth, Expanded Presets & More

Using the rear panel USB-to-MIDI connection*, UAFX pedals fit right into your programmable MIDI rig — receiving preset changes, BPM clock sync and more! Here’s everything you get out of the free update:

USB MIDI control: Bring your live shows to life with USB MIDI support providing 128 recallable presets, MIDI BPM clock sync and real-time expression.
Wired USB app control: Control your pedals via the UAFX app over a wired USB connection (iOS or Android), offering another robust option for managing settings.
Improved Bluetooth connectivity: Ground-up redesign of UAFX app control over Bluetooth, for improved reliability.
Footswitch options: Switch between more presets on UAFX Amp Pedals using powerful new performance modes like Live, Tour (A/Bypass-B/Bypass) and A/B-C/D.

*Requires a compatible USB MIDI host, controller, or interface. Control of multiple UAFX pedals will require an additional USB hub. Click here to learn more.

Key Features

Signature California Tone – Plug into the famous 1992 Rev F Dual Rec high-gain amplifier tone that fueled punk, alt rock, and metal from the ‘90s onward
Legendary Presets – 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
Powerful Engine – Powerful UAFX dual-engine delivers the most authentic emulation of the amp ever placed in a stompbox
Inspirational Tone – 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
Room Modelling – Experience groundbreaking physical room modelling derived from UA’s award-winning OX Amp Top Box
6 Mic/Speaker Pairings – Experiment with six classic mic/speaker pairings as used on classic ‘90s alt rock and metal records

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

By using the UAFX App, you can 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: 4×12 Marshall cab with V30’s
CA V30: 4×12 Oversized cab with V30’s
White 75: 4×12 Marshall cab with Celestion 75’s
3 bonus cabs: 1×12 EV12, 4×12 Celestion 80, 4×12 Brown

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.

Specifications

Power requirements: Isolated 9VDC, center-negative, 400 mA minimum (sold separately)
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)

Additional information

Weight	1 kg

Brand

Universal Audio UAFX

Universal Audio UAFX is Universal Audio’s pedal line, built around high-quality digital modelling derived from their studio hardware and software heritage. These pedals focus on capturing the behaviour and feel of classic amplifiers, effects, and recording chains, rather than offering endless tweakability. The emphasis is on accuracy, depth, and consistency, with sounds that feel finished straight out of the box.

UAFX pedals serve up carefully prepared, high-fidelity flavours that reward players who want studio-grade results on a pedalboard. They work best when treated as centrepiece ingredients rather than background seasoning — confident, refined, and designed to deliver the same result every time you step on them.

Tags

Boost

Distortion

Distortion pedals take your clean guitar signal and transform it into something bigger, bolder, and full of attitude. By clipping the waveform, they add sustain, bite, and aggression, creating that thick, compressed tone that’s powered rock music for decades. From the growling crunch of classic hard rock to the tight, saturated roar of modern metal, distortion is all about energy and presence. It gives every note weight and authority, pushing your amp to its limits and beyond.

There are countless flavours of distortion, each with its own texture and edge. Some sound smooth and creamy, others raw and gnarly like tearing fabric. It’s the sonic equivalent of turning up the heat until the sound cooks — rich, sizzling, and perfectly seasoned to taste. Whether used for rhythm muscle or soaring leads, a good distortion pedal doesn’t just add volume; it adds personality, grit, and that unmistakable sense of power under your fingers.

Expression

Expression pedals allow real-time control over specific parameters on compatible guitar pedals, such as volume, delay time, modulation depth, or filter sweep. Used with an expression input, they let players shape effects dynamically with their foot, adding movement and performance control that cannot be achieved with fixed knob settings.

MIDI

MIDI pedals use the Musical Instrument Digital Interface standard to communicate with other guitar pedals, effects units, and hardware. They allow control over presets, parameters, and switching across multiple devices from a single controller. MIDI integration makes it possible to build complex, synchronised pedal setups while keeping control simple and consistent.

New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

noise gate

Overdrive

Like a golden layer of melted cheese — warm, gooey, and just put it all over. It adds just the right amount of richness and grit, turning a clean signal into something smooth and savoury. Designed to mimic the natural breakup of a tube amp pushed to its sweet spot, overdrive delivers the flavour of classic rock and blues in every bite. From creamy mid-gain warmth to crisp edge-of-breakup sparkle, it’s the comfort food of guitar tone — simple, satisfying, and endlessly versatile. Whether it’s a mild crunch or a full-bodied roar, overdrive is where good taste begins.

Preamp

A preamp pedal shapes and boosts your guitar’s signal before it reaches your amp or recording interface, giving you control over tone, gain, and headroom. It acts as the first stage of amplification, adding warmth, clarity, and character while preparing your signal for the next part of the chain. Some preamps emulate the response of classic valve circuits, while others offer clean, transparent tone shaping ideal for acoustic instruments or direct recording setups.

Used on its own, a preamp pedal can serve as the foundation of your tone, providing a consistent core sound wherever you play. When combined with other effects, it enhances dynamics and helps each pedal sound more defined and natural. Whether you’re looking to push your amp harder, bring life to a dull signal, or refine your sound for the studio, a good preamp pedal adds presence, punch, and musicality to any rig.

used

Universal Audio Knuckles 92 Amp Effects Pedal

Get the raw sound of punk, alt rock, and metal under your boots. Equipped with a classic TS-style overdrive Play presets designed by UA’s tone gurus Customize and save your own tones in the UAFX mobile app

SONICAKE Overdrive Pedal, Dual Channel 3 Modes-Overdrive/Boost/Distortion Guitar Bass Effects Pedal, Pure Analog Circuit, True Bypas, Guidance

Pure Analog Performance: Authentic overdrive tones and responsive dynamic feedback—captures the warmth and depth of classic analog circuitry for natural, musical sound. Dual-Channel Versatility: Use two channels individually or stack them for a powerful gain boost—switch seamlessly between layered tones and standalone sounds. 3 Modes Per Channel: Overdrive (classic bluesy crunch), Boost (clean signal enhancement), Distortion (warm vintage grit)—3×2=6 tone combinations for endless creativity. Precise Tone Control: 4 dedicated knobs per channel (Gain, Tone, Level, etc.)—fine-tune every parameter to craft your signature sound with full control. True Bypass Circuit: Preserves your instrument’s original tone when the pedal is off—no signal loss or coloration, ensuring pure signal integrity.

SONICAKE Multi-Effects Guitar Pedal Guitar Bass Amp Modeling IR Cabinets Simulation with Expression Pedal FX Loop MIDI Stereo OTG USB Audio Interface 4.3″ Color Touchscreen Matribox II Pro QME-200

New hardware and digital modeling technology accurately reproduce every detail of the sound with high fidelity and clarity. 240+ legacy amp and effects models multi-effects guitar pedal. Stereo effects loop and expression pedal/ footswitch input and XLR out. USB audio interface with stereo audio streaming, support OTG function for directly connecting to IOS/Android mobile devices. Free Mac/Windows software for sound editing and presets managing.

SONICAKE Digital Modulation Effects Guitar Pedal Multi Effects Pedal 4 Mode of Chorus, Flanger, Phaser & Tremolo Warped Dimension

4-Mode carefully selected Modulation effects in One Guitar Pedal Based on Legendary Equipment Chorus, Phase effects, Flanger, Tremolo Effects Reproduce the Classic Tap Tempo Function for Real-time RATE Control Special Design Buffer Bypass Circuit Keeps the Sound Pristine Working with 9V Center Negative Regular Pedal Power Supply(not included)

JOYO Bass Guitar Pedals High Gain Overdrive Effect Pedal with Independent Mid Frequency and Gain Boost for Bassist Electric Guitar Bass (DOUBLE THRUSTER R-28)

High gain overdrive pedal, specially designed for Bass player,sculpts clear, punchy lows and delivers sharp and grainy mid and high frequencies. Control knobs: TONE/BLEND/VOL/GAIN as well as middle frequency boost & overdrive gain boost toggle switch. Metal alloy case and good precision components make it solid and durable, innovative JOYO R series ambient LED light brings more stylish and glamorous feeling. JOYO 9V DC pedal power supply is recommended ( NOT included), adopting noise reduction technology, an incompatible power supply may cause the Noise or Damage. JOYO has over a decade of brand reputation, and its most popular budget pedals, amplifiers, wireless systems, controllers, metronomes, tuners have won the love of guitarists all over the world and inspired people's musical dreams.