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Item #1569677 Model #GPM-WDR

Universal Audio UAFX Woodrow '55 Instrument Amplifier Effects Pedal - Copper

$399.00

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Stereo amp and cabinet emulation pedal for classic vintage tweed tones.
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 world-class UAD modeling, Woodrow '55 packs sweet cleans, rich overdrive and grungy distortion.

Deliver 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.

Put a Hot-Rodded Amp on Your Pedalboard

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.*

Get the Authentic Tweed Amp Tones That Started it All

With classic mic and speaker combos straight out of UA's award-winning OX Amp Top Box, Woodrow '55 lets you tailor professional studio guitar sounds, instantly.
12" Combo Speaker Models
BLU15: 15W Celestion Blue
JP12: Stock Jensen P12R
GB25: 25W Celestion Greenback

Free Additional Speaker Cabinet Models
(Get with the UAFX Control app)
Marshall 4x12 with Celestion V30 speakers
Fender 4x10 Bassman cab with Jensen P10R speakers
Fender 1x12 cab with vintage JBL D-120F speaker

Customize Your Tones 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.

UAFX 2.0 Firmware Update

Launching November 11, 2025, the UAFX 2.0 firmware update delivers a major performance upgrade to Universal Audio’s two-button pedals, unlocking deep MIDI integration, enhanced footswitch control, and streamlined app connectivity. Players can now select from four new footswitch modes—Live/Preset AB, A/Bypass + B/Bypass (Tour Mode), A/B–C/D, and Boost + Live/Preset—ideal for live “channel-switching” workflows. The update introduces 128 recallable presets via MIDI Program Change, real-time parameter control through MIDI CC messages, and MIDI beat clock sync for time-based effects including the Starlight Echo Station, Astra Modulation Machine, Galaxy ’74 Tape Echo & Reverb, and Del-Verb Ambience Companion. Bluetooth connectivity has been rebuilt from the ground up for increased reliability, while a new wired USB connection enables direct app control from iOS or Android devices. USB MIDI support further enhances expression, preset switching, and clock sync capabilities, making it easier than ever to integrate UAFX pedals into modern performance rigs. All updates are free and compatible exclusively with dual-footswitch UAFX models.

The Universal Audio UAFX Woodrow '55 instrument amplifier effects pedal is an innovative pedal that perfectly captures the warm, tube-driven tones of the iconic tweed amplifiers of the 1950s. Featuring cutting-edge modeling technology and components, the Woodrow '55 provides an end-to-end emulation of a coveted 1x12" combo amp from rock 'n' roll's golden age.