SKU: 86828338166

Universal Audio KNUCKLES '92 Rev F Dual Rec Amplifier Pedal

Sale price$256.05 Regular price$284.50
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Description

Universal Audio KNUCKLES '92 Rev F Dual Rec Amplifier PedalA watershed year for high gain amplification, 1992 introduced the double rectified monster that would unite metalheads, punks, and rockers alike with its fire breathing tone. Three decades down the line, Universal Audios Knuckles 92 Rev F Dual Rec Amplifier puts the punch of that all time classic tube head on your pedalboard. This stereo amp and cab simulation pedals Green, Orange, and Red channel voicings supply everything from the original amps

A watershed year for high-gain amplification, 1992 introduced the double-rectified monster that would unite metalheads, punks, and rockers alike with its fire-breathing tone. Three decades down the line, Universal Audio’s Knuckles ’92 Rev F Dual Rec Amplifier puts the punch of that all-time classic tube head on your pedalboard. This stereo amp and cab simulation pedal’s Green, Orange, and Red channel voicings supply everything from the original amp’s signature tight and ultra-saturated gain-laden sounds to a rich palette of full-bodied cleans. Six classic microphone and cabinet configurations allow you to twist and tweak Knuckles’ response to your taste, and you also get an onboard TS-style overdrive, preamp boost, and a noise gate to cut out unwanted noise. What’s more, Universal Audio’s UAFX app unlocks a host of expanded tone-shaping options, including the ability to switch between EL34 and 6L6 power tubes, change from solid-state to tube rectification, and fine-tune every element of every setting. From subterranean nu-metal riffage to buzzsaw pop-punk crunch to arguably the most pivotal metal tones of the ’90s and the aughts, Universal Audio’s Knuckles ’92 pedal comprehensively captures the soul of hard-hitting California boogie.

Multichannel madness

Universal Audio’s UAFX pedals are revered for their uncompromising commitment to sonic accuracy, capturing every tonal nuance and harmonic detail of the amps that inspired them. And to truly replicate the vibe of a classic double-rectified amplifier, one voice simply won’t cut it — the original amp’s trio of channels ran the tonal gamut, resulting in its widespread adoption among players from disparate musical backgrounds. To match the flexibility of the original, Knuckles packs three channels: Green, Red, and Orange. Combined with this pedal’s built-in TS-style overdrive and integrated preamp boost, Knuckles tackles everything from face-melting lead tones to thunderous crunch, along with a pleasing assortment of cleans to balance out this pedal’s all-out aggression.

4-cable mode offers powerful channel switching

Each pedal in Universal Audio’s UAFX series features a special “4-cable” mode accessible via the UAFX Control app, allowing you to bypass your amp’s preamp when the pedal is engaged for incredibly realistic tube-style tones. By hooking your pedal up to both your effects loop send/return and the front of amp input, you can instantly switch between your amp’s stock tone and your UAFX pedal routed straight into the power amp, effectively adding two extra channels to your amplifier. What’s more, Universal Audio designed this feature with multiple pedal setups in mind — you can connect any number of UAFX pedals in this configuration for multichannel madness.

witch up your speakers

Most of Knuckles’ magic is in its handpicked microphone and speaker combinations, bolstered by Universal Audio’s Dynamic Room Modeling technology. Knuckles sports three of these settings right out of the box, granting you a trio of roaring 4 x 12-inch tones to choose from. Furthermore, you can connect to the UAFX app to unlock three additional cabs.

UAFX Control app

Looking to take in-depth control over even the most minute sonic parameters? Knuckles is Bluetooth and USB-C compatible with Universal Audio’s powerful UAFX app. In addition to giving you significantly enhanced editing options, the UAFX app also includes access to artist tones, custom presets, and more.

Features

  • UAFX amp modeling pedal that rigorously replicates the tone of a classic double-rectified California tube head championed by iconic metalheads, punks, rockers, and more
  • Includes Green, Orange, and Red channels to deliver everything from the original’s signature ultra-tight high-gain saturation to smoldering lead tones to captivating cleans
  • Built-in TS-style overdrive and preamp boost inject your tone with a dose of extra heat
  • Dish out gain-laden tones without a hint of noise thanks to the built-in noise gate
  • Includes 3 studio-ready cab/mic emulations, with 3 more available via the UAFX app
  • Presets available to save your favorite sounds
  • 4-cable mode bypasses your amplifier’s preamp when the pedal is engaged
  • USB-C port for firmware updates
  • Bluetooth-compatible for access to Universal Audio’s UAFX app

Specifications

  • Pedal Type: Amp Emulation, Overdrive
  • Analog/Digital: Digital
  • Channels: 3
  • Form Factor: Pedal
  • EQ: 3-band EQ, Presence
  • Presets: 1 x Onboard
  • Amp Modeling: 6 x Cabinet emlations
  • Distortion/Overdrive: Overdrive
  • Effects: Noise Gate
  • Inputs: 2 x 1/4" TS
  • Outputs: 2 x 1/4" TS
  • USB: 1 x USB-C (firmware updates)
  • Bypass Switching: Buffered
  • Features: Mono/Stereo, 4-cable mode, Bluetooth v5.0
  • Software: UAFX Control mobile app
  • OS Requirements - Mac: iOS 13 or later
  • OS Requirements - PC: Android 10 or later
  • Power Source: 9V DC (400mA) power supply (sold separately)
  • Height: 2.56"
  • Width: 3.62"
  • Depth: 5.55"
  • Weight: 1.24 lbs.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 86828338166

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R. L.
Phoenix, US
★★★★★ 5
Soft and luxurious, high quality - but don't buy if you have cats
Color: Ivory White, Size: 2' x 6' (Sheepskin Shape)
I give the rug a five-star rating because it deserves it. I was really surprised at how good the rug is right out of the package (it was packaged very well too). Because this rug is relatively less expensive than many other listings of natural sheepskin rugs on Amazon and elsewhere, I wasn't expecting much. But it turned out to be thick, soft, fluffy, plush, and luxurious all over. Many years ago I have purchased another natural sheepskin rug from Amazon described to be of the same size as this one (I got the 2'*6' one), but this one is definitely much bigger in its actual size. It's hands-down a high-quality, high-value purchase if you want a nice natural sheepskin rug. I also love how beautiful the natural creamy white color is. Now, the story takes a turn. It does have a "natural and organic" smell as mentioned in many other reviews. The smell itself is not repulsive. I don't know how long it will take for it to air out (my last rug never really got rid of the smell, but it was not a big issue since I put it on the floor. I lost the rug in cross country moving.) But now I have a cat! My cat just couldn't resist tackling the rug the moment it was laid on the floor. She probably imagined herself to be a lion or a tiger who just caught some big prey. She couldn't stop kicking and biting the rug, trying to tear it apart. She came back to it a few times after breaks already. And this is day one. I am guessing this smell does stimulate some instinctive call from her genes. In a few short moments, she managed to tear off quite some fur from the edge of the rug... The rug still looks fine since I just received it today. I am not sure how long it will last with my cat though. Before ordering, I thought about this possibility and googled whether cats and sheepskin rugs can co-exist. I got many cute picture results showing angelic cats resting contently in the long and soft sheepskin fur, looking totally adorable and peaceful. Many articles say that natural rugs calm our fluffy friends down. Well, I told myself "perfect!" Win-win for me and my cat. Now, here we are, the beginning of my cat's conquest of an imaginary lamb (which was a real lamb.) I cannot even return it since it has already been damaged by my cat... In the worst case, this rug would become a really expensive cat entertainment piece that would eventually be destroyed....:((( I even started feeling guilty for buying animal-based products - but then comforted myself by remembering reading somewhere that cow and lamb leather goods come from animals that would be slaughtered for meat consumption anyways. My cat is already eating canned food containing Australian lamb, etc, etc. Really need to stop the thoughts. So this is my review. Beautiful rug of excellent quality and unbeatable value, unless you have a cat(s).
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Reviewed in the United States on April 3, 2022
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reader2
Los Angeles, US
★★★★★ 5
Good quality, nice looking, cozy
Color: Cream Brown, Size: 2 x 6 ft Sheepskin
Good quality, accurate color. Perfect length for floor beside queen size bed.
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Reviewed in the United States on May 24, 2026
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Kae @treehousebus
Lake Worth, US
★★★★★ 5
Perfect for a queen bed
Color: Tan, Size: 2' x 6' (Sheepskin Shape), Color: Tan, Size: 2' x 6' (Sheepskin Shape)
I LOVE this rug. I’m so glad I bought this instead of a cheap dupe. Reasonably priced, arrived quickly, doesn’t smell. It’s super soft and fluffy and really dense, so far I haven’t noticed any shedding. The size is perfect for draping across a queen bed. The color is beautiful and feels very natural. I might buy a second one for my bus conversion! Thank you so much!
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Reviewed in the United States on May 5, 2026
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🤪SillyBanana🍌
Boise, US
★★★★★ 5
It's perfect!
Color: Snow Grey, Size: 2' x 3' (Sheepskin Shape)
Gorgeous and soft! We love it! Very quality fur.
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Reviewed in the United States on April 20, 2026
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Katt
Massapequa, US
★★★★★ 5
Exactly as shown! Beautiful!
Color: Dark Green, Size: 2' x 6' (Sheepskin Shape)
Perfect size, color, fluffy, and soft with no strange smell!
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Reviewed in the United States on April 19, 2026

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