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Effects and Pedals | Guitar effector | Preamp
New | Condition: Brand New
Universal Audio  |  Product Code: 796122

Universal Audio UAFX Knuckles (Universal Audio) preamp

Sale price $327.00 Regular price $431.00
Shipping calculated at checkout.
Product Condition
Brand New Unused, as sold.
Mint Like new, no flaws.
Excellent Barely used, very minor wear.
Very Good Light wear, fully functional.
Good Visible wear, plays fine.
Fair Heavy wear, still playable.

Description

The UAFX Knuckles '92 Rev F Dual Rec Amplifier is a model that simulates the California-born high-gain amp released in the early 1990s, also known as the King of High Gain.
The Rev F model of the guitar amp that powered so many legendary punk, hard rock, and metal bands is now back at your feet.


〇UAFX Knuckles '92 Rev F Dual Rec Amplifier
The long-awaited UAFX high-gain amp that has powered legendary punk, hard rock, and metal bands is finally here.
This UAFX Knuckles reproduces the sound of the 1992 Rev F, one of the highly acclaimed dual-type pedals that appeared in the early 1990s.

Featuring six classic cabinet/mic combinations, a built-in TS-type overdrive and booster, and even a noise gate—essential for high-gain amps—the UAFX Knuckles pedal delivers the guitar sounds heard on famous albums with just one pedal.

Of course, you can use the dedicated UAFX app to customize parameters that cannot be controlled by the unit itself, such as output tube type and even rectifier type. Of course, a wide variety of presets by famous metal guitarists are also included.

Key Features and Specifications of the UAFX Knuckles '92 Rev F Dual Rec Amplifier: High-gain amp tone from the famous 1992 Rev F Dual Rec, a driving force behind punk, alternative rock, and metal since the 1990s. Powerful UAFX Dual Engine delivers the most authentic guitar amp emulation in a stompbox. Selectable diode/tube rectifier and the famous Green/Orange/Red channels are perfectly recreated. Get genre-defining tones with built-in TS-style overdrive and three channels ranging from clean/crunch to bone-shaking high-gain sounds. Smooth built-in noise gate and djent (prog metal) for a tight sound. Award-winning OX Amp Top Groundbreaking physical room modeling born from the box. Six classic microphone and speaker combinations heard on classic albums spanning decades. Presets crafted by UAFX sound designers, Dual-Rec amp specialists, and metal artists. Customize your own tone with the UAFX mobile app. Built-in cabinet models:
UK V30: 4x12 Marshall cabinet with Vee 30 speakers
CA V30: 4x12 Oversized Cabinet with Vee 30 Speakers
White 75: 4x12 Marshall cabinet with Celestion 75 speakers. Bonus cabinet models available free with the UAFX App:
EV12: 1x12 cabinet with EV12 speaker
Super 80: 4x12 cabinet with Celestion 80 speakers
Brown JB: 4x12 cabinet with JBL speakers. Compatible with UAFX app (iOS/Android).

Input terminals: 1/4-inch TS phone x 2 (Input 2 is for stereo connection, 4-cable mode)
Output terminals: 1/4-inch TS phone x 2 (Output 2 is for stereo connection, 4-cable mode)
- USB port: Type-C (for updating via computer)
Power supply: External AC adapter (isolated type 9VDC/center negative/400mA or more)
*AC adapter sold separately.
・Dimensions: 6.5 x 9.2 x 14.1 cm (H x W x D)
・Body weight: 567 g
*To update the firmware of the main unit, you will need the UAConnect app for macOS or Windows.


The UAFX Knuckles '92 Rev F Dual Rec Amplifier is a model that simulates the California-born high-gain amp released in the early 1990s, also known as the King of High Gain.
The Rev F model of the guitar amp that powered so many legendary punk, hard rock, and metal bands is now back at your feet.


〇UAFX Knuckles '92 Rev F Dual Rec Amplifier
The long-awaited UAFX high-gain amp that has powered legendary punk, hard rock, and metal bands is finally here.
This UAFX Knuckles reproduces the sound of the 1992 Rev F, one of the highly acclaimed dual-type pedals that appeared in the early 1990s.

Featuring six classic cabinet/mic combinations, a built-in TS-type overdrive and booster, and even a noise gate—essential for high-gain amps—the UAFX Knuckles pedal delivers the guitar sounds heard on famous albums with just one pedal.

Of course, you can use the dedicated UAFX app to customize parameters that cannot be controlled by the unit itself, such as output tube type and even rectifier type. Of course, a wide variety of presets by famous metal guitarists are also included.

Key Features and Specifications of the UAFX Knuckles '92 Rev F Dual Rec Amplifier: High-gain amp tone from the famous 1992 Rev F Dual Rec, a driving force behind punk, alternative rock, and metal since the 1990s. Powerful UAFX Dual Engine delivers the most authentic guitar amp emulation in a stompbox. Selectable diode/tube rectifier and the famous Green/Orange/Red channels are perfectly recreated. Get genre-defining tones with built-in TS-style overdrive and three channels ranging from clean/crunch to bone-shaking high-gain sounds. Smooth built-in noise gate and djent (prog metal) for a tight sound. Award-winning OX Amp Top Groundbreaking physical room modeling born from the box. Six classic microphone and speaker combinations heard on classic albums spanning decades. Presets crafted by UAFX sound designers, Dual-Rec amp specialists, and metal artists. Customize your own tone with the UAFX mobile app. Built-in cabinet models:
UK V30: 4x12 Marshall cabinet with Vee 30 speakers
CA V30: 4x12 Oversized Cabinet with Vee 30 Speakers
White 75: 4x12 Marshall cabinet with Celestion 75 speakers. Bonus cabinet models available free with the UAFX App:
EV12: 1x12 cabinet with EV12 speaker
Super 80: 4x12 cabinet with Celestion 80 speakers
Brown JB: 4x12 cabinet with JBL speakers. Compatible with UAFX app (iOS/Android).

Input terminals: 1/4-inch TS phone x 2 (Input 2 is for stereo connection, 4-cable mode)
Output terminals: 1/4-inch TS phone x 2 (Output 2 is for stereo connection, 4-cable mode)
- USB port: Type-C (for updating via computer)
Power supply: External AC adapter (isolated type 9VDC/center negative/400mA or more)
*AC adapter sold separately.
・Dimensions: 6.5 x 9.2 x 14.1 cm (H x W x D)
・Body weight: 567 g
*To update the firmware of the main unit, you will need the UAConnect app for macOS or Windows.

Payment & Security

Payment methods

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

For orders exceeding Paypal’s transaction limit of 1 million yen, we will provide more details. For secure transactions, items will only be shipped to the address registered in your Paypal account.

Regarding detailed information and contact information to us, please check FAQ.

Please Note

The following information applies to international orders.

■ Condition

Items with “USED” in the product name are pre-owned and will be delivered as shown in the photos. Signs of wear may be present. All items are function-tested by our staff and rechecked before dispatch.

■ Stock

Many products are stocked across Ikebe stores in Japan. As a result, shipment may take several days. In-store sales may also cause items to sell out. If an item is unavailable, we will contact you promptly; in that case, the order will be canceled and any payment will be refunded.

■ Shipping

We ship via FedEx. Shipments are fully insured against damage or loss during transit.

  • Asia: 10–20 days (estimated)
  • North America & Oceania: 20–30 days (estimated)

Shipping costs are calculated based on the delivery address and confirmed at the time of dispatch.

■ Taxes & Duties

Import duties, taxes, and fees are the buyer’s responsibility and are not included in the item price or shipping cost. These fees are typically collected by the carrier upon delivery or at pickup. Please check with your country’s customs office for details before purchasing.

■ Other

We cannot declare a reduced item value or mark purchases as gifts.

* Warranty

Our product warranty is valid only within Japan.

* Voltage

All electrical products are intended for the Japanese market and are designed for 100 V operation.

About us

Founded in 1975, Ikebe Music is one of Japan's largest general music stores.Thanks to its long history and proven track record, it has earned the trust of musicians and music fans not only in Japan but around the world.

Ikebe Music ships not only within Japan, but also overseas.As a well-known retailer of used musical instruments in Japan, we have a wide selection of used and vintage instruments.

We have a wide variety of unusual and rare instruments, so please take a look.Please note that we do not list new products, as our contracts with our suppliers prohibit international shipping.

About our stores

In Japan, we have about 30 stores in Tokyo (Ikebukuro, Shibuya, Akihabara) and Osaka.

We have just opened our flagship store, IKESHIBU (IKEBE SHIBUYA), in Shibuya, Tokyo, which brings together numerous musical instrument specialty stores and serves as a hub for entertainment culture.

Please be sure to stop by if you are visiting Japan.

Tokyo area
Osaka area
About Shipping

We carefully pack every item with protective materials to ensure it arrives safely.
The photos above show an example of how we securely pack a bass guitar for shipping.