Universal Audio GPM-WDR Woodrow ’55 Instrument Amplifier – Mint, Open Box

Deliver Authentic Tweed Amp Tones plus Classic Mic and Speaker Combinations with the Universal Audio Woodrow ’55 Instrument Amplifier Pedal

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.

• 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

• 12″ Combo Speaker Models
  • BLU15: 15W Celestion Blue

  • JP12: Stock Jensen P12R

  • GB25: 25W Celestion Greenback

• 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

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.

SPECIFICATIONS

• Power requirements: Isolated 9VDC, center-negative, 400 mA minimum (sold separately)

• Inputs: 2 x ¼” TS (right input for stereo connections and 4-cable mode)

• Outputs: 2 x ¼” TS (right output for stereo connections and 4-cable mode)

• USB Type-C for updates via computer

• Height: 2.56” (6.5 cm)

• Width: 3.62” (9.2 cm)

• Depth: 5.55” (14.1 cm)

• Weight: 1.24 lbs (0.567 kg)

Manufacturer: Universal Audio
Model: GPM-WDR
SKU: I709720-GA999251115-3-WHXX
UPC: 819937003325

We are Chuck Levin’s Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.