Universal Audio UA‑KNUCKLES UAFX ANTI Knuckles '92 Dual Rec Amplifier

The Universal Audio Knuckles '92 Dual Rec Amplifier pedal brings the ferocious high-gain tones of the legendary 1992 Rev F Dual Rectifier amplifier to your pedalboard. Designed for guitarists seeking the iconic sounds that defined '90s punk, alt rock, and metal, this pedal delivers authentic amp emulation with the convenience of a compact stompbox.

Equipped with a powerful UAFX dual-engine, the Knuckles '92 offers a comprehensive suite of features including TS-style overdrive, preamp boost, noise gate, and selectable solid-state or tube rectification. Its three-channel design—Green, Orange, and Red—provides a versatile range from pristine cleans to aggressive leads. Additionally, six classic mic and speaker pairings, along with groundbreaking physical room modeling derived from UA’s award-winning OX Amp Top Box, allow for extensive tonal customization. Integration with the UAFX Control mobile app further enhances user control, enabling preset management and deeper parameter adjustments.

Key Features:

• Authentic emulation of the 1992 Rev F Dual Rectifier high-gain amplifier
• UAFX dual-engine processing for realistic amp response
• Built-in TS-style overdrive, preamp boost, and noise gate
• Selectable solid-state or tube rectification
• Three-channel design: Green (clean), Orange (crunch), Red (lead)
• Six classic mic/speaker pairings: UK V30, CA V30, White 75, plus three bonus cabs
• Physical room modeling based on UA’s OX Amp Top Box
• Integration with UAFX Control mobile app for preset management and customization
• Bluetooth connectivity for wireless control
• USB Type-C port for firmware updates

Technical Specifications:

Audio Circuit Type: Digital (Modeling)
Controls: 4 x Rotary Knobs (Gain/Room, Presence/Gate, Output, Low/Overdrive, Mid/OD Tone, High/OD Level), 3 x 3-Way Switches (Cab Type, Amp/Store/Alt, Channel), 1 x Push Button (Bluetooth Pair), 2 x Footswitches (On/Bypass, Preset)
Inputs: 2 x ¼" TS unbalanced (Input 2 for stereo connections)
Outputs: 2 x ¼" TS unbalanced (Output 2 for stereo connections)
Input Impedance: 500 kΩ (Mono In), 1 MΩ (Stereo In)
Output Impedance: 500 Ω
Maximum Input Level: 12.2 dBu
Maximum Output Level: 12.1 dBu
Frequency Response: 20 Hz to 20 kHz, ±3 dB
USB: 1 x USB-C (for registration and firmware updates)
Wireless Technology: Bluetooth v5 (2.402 – 2.480 GHz, +4.35 dBm)
Power Requirements: Isolated 9VDC, center-negative, 400 mA minimum (power supply sold separately)
Dimensions: 5.55" (Depth) x 3.62" (Width) x 2.56" (Height) / 14.1 x 9.2 x 6.5 cm
Weight: 1.34 lbs / 0.605 kg

Package Contents:

• Knuckles '92 Dual Rec Amplifier pedal
• User manual