Experience Raw Tube Tones from the Dawn of Electric Guitar

The UAFX Woodrow '55 Instrument Amplifier pedal gives you the legendary American tweed tube amp sounds used by artists and producers for decades, from The Eagles to Chuck Berry to Neil Young. Built on powerful dual-engine processing and UAD modeling expertise, the Woodrow '55 effects pedal packs sweet cleans, rich overdrive, and grungy distortion.

Experience Perfect Tube Amp Growl, Stage and Studio

Whether it's replacing your amp rig and going direct to front‑of‑house on stage, or recording tracks into your DAW — Woodrow '55 gives you the inspiring, album‑ready tones of an expertly miked "golden unit" vintage tweed amp, within seconds.

Get Hot-Rodded Sounds

Take your rowdy tweed tones further using tried-and-true British speaker swaps and boosts — including preamps from the iconic KORG SDD-3000 rack unit and Maestro EP-3 tape delay — at the flip of a switch.* Only Woodrow '55 puts authentic tube growl and hot‑rod mods under your chucks, docs, or crocs.

Customize your Sound with the UAFX App

Woodrow '55 gets even better with the UAFX Control mobile app. Download custom artist tones, recall and archive your presets, and delve into the tweed amp that started it all.

FEATURES

• Powerful UAFX dual-engine delivers the most authentic mid-'50s American tube combo sound ever placed into a stompbox
• Includes the world's best speaker cabinet, mic, and room tones derived from the award-winning OX Amp Top Box
• Features "hot rod" boosts, classic speaker swaps, plus free additional downloadable cabinets and mics upon registration
• Bypass cabinet/mic emulations and use in front of your amp for added tonal flavor and overdrive sounds
• UAFX mobile app lets you customize footswitches, recall and archive presets, unlock additional features, download artist presets, and more
• Timeless UA design and craftsmanship, built to last decades

• Power requirements (power supply sold separately): Isolated 9VDC, center-negative, 400mA minimum
• Inputs: 2 x ¼” unbalanced TS (input 2 for stereo connections and 4-cable mode)
• Outputs: 2 x ¼” unbalanced TS (output 2 for stereo connections and 4-cable mode)
• 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, ±1 dB
• USB Type-C: For registration and firmware updates via computer
• Wireless technology: Bluetooth v5
• Transmitted Frequency Range: 2.400 GHz – 2.4835 GHz
• Maximum Output Power: +4.35 dBm
• Dimensions:
  • Height: 2.56 inches, 6.5 cm
  • Width: 3.62 inches, 9.2 cm
  • Depth: 5.55 inches, 14.1 cm