Universal Audio UAFX Knuckles ’92 Dual Rec Amplifier
The mind-blowing sound of punk, alternative rock, and metal, right under your feet.
The Knuckles ’92 Dual Rec Amplifier pedal gives you the opportunity to capture that fabulous high-gain sound that made punk, hard rock, and metal legends like Foo Fighters, Incubus, Nevermore, Dream Theater, and many others famous.*
The Knuckles offers six classic mic and speaker combinations, a TS-style overdrive/boost, and a noise gate so you can enjoy the sound of one of the fiercest high-gain amps on the planet.
The benchmark of California high-gain tone
If you’re looking to roar the power chords of iconic punk and alternative rock tracks by Dave Grohl and Incubus, or want to experiment with the complex and aggressive sound of Nevermore and Dream Theater, put the Knuckles ’92 on your pedalboard and get inspired by one of the most versatile multi-channel amps in history.*
The full Rectifier palette
Activate the famous green, orange, and red channels to switch from a formidable clean tone to a dazzling crunch or devastating saturation. Then experiment with EL-34 and 6L6 power tubes and choose between a tube rectifier and a transistor version. With the Knuckles ’92, you get total control.
Push your tone by boosting the preamp
The Knuckles ’92 is equipped with a classic TS-style overdrive, a widely proven element for a clear and precise sound, as well as a preamp boost famous for shaping modern metal tone. We also included a noise gate so your sound stays pristine even when you push the gain to the extreme. Beware, the walls might shake when you activate it.
Six explosive mic/speaker combinations
Try one of the six mic and speaker combinations—the same ones used to record countless legendary albums. From iconic alternative rock tracks to the brutal sound of nu-metal, the Knuckles ’92 captures all the aggression of one of the best amps on the planet.*
- UK V30: 4x12" Marshall cabinet equipped with V30 speakers
- CA V30: oversized 4x12" cabinet equipped with V30 speakers
- White 75: 4x12" Marshall cabinet equipped with Celestion 75 speakers
- 3 bonus cabinets: 2x12 D65, 4x12 Celestion 80, 4x12 Brown*
*Available with the UAFX Control mobile app.
Customize your tone with the UAFX app
Fine-tune your pedal’s settings with the UAFX mobile app. You’ll access hidden controls, save boost and noise gate settings, and even change power tubes and rectifier modes.
You can also browse presets created by top metal guitarists and Dual Rec specialists.
Main Features
- Play with the famous high-gain Dual Rec Rev F amplifier that has shaped punk, alternative rock, and metal tones since 1992
- The powerful UAFX dual engine delivers, for the very first time in an effects pedal, the most faithful emulation of this amp
- Get the same sound as on your favorite rock and metal albums thanks to the TS-style overdrive, preamp boost, noise gate, channel switch, different power tubes, and built-in tube or transistor rectifier
- Enjoy innovative dynamic room modeling derived from UA’s renowned OX Amp Top Box
- Experiment with six classic mic/speaker combinations used on 1990s metal and alternative rock albums
- Play with presets produced by UA sound specialists, Dual Rec experts, and artists, or customize and save your own tones in the UAFX mobile app
Specifications
- Power supply required: 9 V DC shielded, center negative, minimum 400 mA (sold separately)
- Inputs: 2 x 6.35 mm TS jacks (right input for stereo connections and 4-cable mode)
- Outputs: 2 x 6.35 mm TS jacks (right output for stereo connections and 4-cable mode)
- USB Type-C port for updates from computer
- Height: 6.5 cm (2.56")
- Width: 9.2 cm (3.62")
- Depth: 14.1 cm (5.55")
- Weight: 0.567 kg (1.24 lbs)
*The use of artist names does not constitute any official endorsement of the UAFX Knuckles ’92 Dual Rec Amplifier pedal by them.
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