Universal Audio UAFX Knuckles '92 Rev F Dual-Rectifier Amp Modeling Pedal with Bluetooth

SKU: UAGPMKNUC MFR: GPM-KNUC
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Key Features

  • Experience legendary high-gain amp tones with this versatile amp modeler pedal.
  • Achieve pristine sound quality using authentic '92 Rev F Dual-Rectifier amplifier emulations.
  • Explore a wide range of tones with the intuitive gain, tone, and level controls.
  • Enjoy seamless preset switching for live performances using the dual footswitch design.
  • Use Bluetooth to easily pair your device for firmware updates and preset management.
  • Compact and durable, this Universal Audio pedal fits perfectly on any pedalboard.
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Special Order?Estimated to Ship: 08/09/2025
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Universal Audio UAFX Knuckles '92 Rev F Specifications

  • Power requirements

    Isolated 9VDC, center-negative, 400mA minimum (power supply sold separately)

  • Controls

    4x Rotary Knob (Gain/Room, Presence/Gate, Output, Low/Overdrive, Mid/OD Tone, High/OD Level)
    3x 3-Way Switch (Cab Type, Amp/Store/Alt, Channel)
    1x Push Button (Bluetooth Pair)
    2x Footswitch (On/Bypass, Preset)

  • Inputs

    2x 1/4" unbalanced TS (input 2 for stereo connections)

  • Outputs

    2x 1/4" unbalanced TS (output 2 for stereo connections)

  • Input impedance

    500 Kilohms (Mono In)
    1 Megohms (Stereo In)

  • Output impedance

    500 Ohms

  • Maximum input level

    12.2 dBu

  • Maximum output level

    12.1 dBu

  • Frequency response

    20 Hz to 20 kHz, +/-3 dB

  • USB Type-C

    For registration and firmware updates via computer

  • Wireless technology

    Bluetooth v5

  • Transmitted Frequency Range

    2.402 - 2.480 GHz

  • Maximum Output Power

    +4.35 dBm

  • Dimensions (H x W x D)

    With Knobs and Protrusions: 2.56 x 3.62 x 5.55" (6.5 x 9.2 x 14.1cm)

  • Weight

    1.34 lbs (605g)

Designed For Use With:

  • Guitar Pedal

Need Help?

For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.

About Universal Audio UAFX Knuckles '92 Rev F

An unparalleled addition to any guitarist's pedalboard, the Universal Audio UAFX Knuckles '92 Rev F Dual-Rectifier Amp Modeling Pedal with Bluetooth delivers the raw, unfiltered sound of punk, alternative rock, and metal. This pedal captures the searing high-gain tones that have powered legendary bands such as Foo Fighters, Incubus, Metallica, and Tool. With six classic mic and speaker pairings, a built-in TS-style overdrive/boost, and a noise gate, the Knuckles '92 offers the authentic, genre-defining sound of one of the most ferocious high-gain amps ever created.

Plug into the California King of High Gain and experience the gritty power chords and complex aggression that define the music of iconic bands like Dave Grohl's Foo Fighters and Dream Theater. The Knuckles '92 brings the versatility of a multi-channel amp directly to your pedalboard, allowing you to explore a range of rectifier tones. Utilize the famed green, orange, and red channels to achieve everything from pristine cleans to bone-crushing crunch and smoldering lead sounds. Customize your tone further by experimenting with EL-34 or 6L6 power tubes and switching between solid-state or tube rectifiers for ultimate control and tactile response.

The Knuckles '92 is equipped with a classic TS-style overdrive, a staple for tight, articulate playing, and an integrated preamp boost renowned for sculpting modern metal tones. Its built-in noise gate ensures clarity even at the highest gain levels, making it an essential tool for any guitarist seeking precision and power.

With six epic mic and speaker pairings, the Knuckles '92 captures the full essence of playing through one of the greatest aggressive guitar amps ever made. Each pairing has been used on countless iconic records, ensuring that your sound is both authentic and versatile.

Enhance your experience with the UAFX Control mobile app, which offers deep customization options. Tweak hidden controls, save your preferred boosts and noise gate settings, and even change output tubes and rectifier modes. Explore artist presets crafted by the world's top metal guitarists and dual-rec specialists, allowing you to tailor your sound to perfection. The Universal Audio UAFX Knuckles '92 Rev F Dual-Rectifier Amp Modeling Pedal with Bluetooth is your gateway to legendary tones and unparalleled versatility.

Universal Audio UAFX Knuckles '92 Rev F Features

  • Plug into famous 1992 Rev F Dual Rec amplifier tones that fueled punk, alt rock, and metal from the '90s onward
  • Dial in genre-defining sound with TS-style overdrive, preamp boost, noise gate, channel switching, and more
  • Experiment with six classic mic/speaker pairings used on classic alt rock anthems and metal records
  • Play presets designed by dual-rec specialists; or customize and save your own tones in the UAFX Control mobile app

Warranty Information

This product has a limited warranty of 12 months for parts and 12 months for labor.

Key Features

  • Experience legendary high-gain amp tones with this versatile amp modeler pedal.
  • Achieve pristine sound quality using authentic '92 Rev F Dual-Rectifier amplifier emulations.
  • Explore a wide range of tones with the intuitive gain, tone, and level controls.
  • Enjoy seamless preset switching for live performances using the dual footswitch design.
  • Use Bluetooth to easily pair your device for firmware updates and preset management.
  • Compact and durable, this Universal Audio pedal fits perfectly on any pedalboard.

What's in the box:

  • Universal Audio UAFX Knuckles '92 Rev F Dual-Rectifier Amp Modeling Pedal with Bluetooth
  • Universal Audio 1 Year Limited Warranty