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OX Stomp Dynamic Speaker Emulator

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OX Stomp Dynamic Speaker Emulator
OX Stomp Dynamic Speaker Emulator
OX Stomp Dynamic Speaker Emulator

OX Stomp Dynamic Speaker Emulator

Get perfectly miked guitar tones in seconds.

  • Get three-dimensional, album-ready guitar tones from your amp emulator thanks to Dynamic Speaker Modeling
  • Experience jaw-dropping speaker, cabinet, and room emulations far beyond common IR loaders
  • Add studio-quality 1176 compression, plate reverb, EQ, modulation, and stereo delay effects for perfectly produced tones
  • Get realtime MIDI control*, improved Bluetooth and hardwired connections, and more using updated UAFX Control app
  • Audition, tweak, and save custom presets and more with the UAFX Control mobile app

Save $50 for a limited time! Ends 12/31. Details

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  • The most authentic sounding speaker, cab, mic, and room tones ever emulated in a stompbox 
  • Authentic speaker modeling including speaker breakup, drive, and cone cry
  • Over 100 curated RIGs perfect for any amp emulator or genre for endless inspiration
  • Studio-quality effects including genuine UA 1176 compression, plate reverb, EQ, and stereo delay (dual, crossover, ping-pong) for perfectly produced tones
  • Supports MIDI-over-USB*, improved Bluetooth and hardwired connections, and more via the updated UAFX Control app
  • UAFX Control app for fine-tuning mics, effects, and footswitch configurations 
  • Silent switching, buffered bypass, analog dry through
Cab Emulations***
  • 1x10 Black Cha (Fender Super Champ w/ vintage Fender "Blue")
  • 1x12 Blue J ('55 Fender Tweed Deluxe w/ vintage Jensen P12R)
  • 1x12 GB25 ('55 Fender Tweed Deluxe w/ vintage Celestion "Greenback")
  • 1x12 Blu 15 ('55 Fender Tweed Deluxe w/ reissue Celestion Alnico "Blue")
  • 1x12 Black D-ux (Mid-'60s Fender Deluxe Reverb w/ vintage Oxford 12K5-6) 
  • 1x12 Black GB30 (Fender Princeton II w/ Celestion G12H)
  • 2x10 V-ux (Late-'60s Fender Vibrolux w/ stock vintage Fender "Blues")
  • 2x12 Two Verb (Late-'60s Fender Twin Reverb w/ vintage Jensen C12Ns)
  • 2x12 Black 8H (Custom Altec cabinet w/ vintage Altec 8H Series IIs)
  • 2x12 Ace Top (Mid-'60s Vox AC30 w/ vintage Celestion "SIlver Bulldogs")
  • 2x12 Boutique D65 (Two-Rock extension cab w/ Celestion G12-65s)
  • 2x12 Alnico 50 (Fender closed-back extension cab w/ Eminence EJ1250s)
  • 4x10 Bman ('59 Fender Bassman w/ reissue Jensen P10Rs)
  • 4x12 GB25 Thick (Late '60s Marshall w/ vintage Celestion 25-watt "Greenbacks")
  • 4x12 GB25 Punch (Late '60s Marshall w/ vintage Celestion 25-watt "Greenbacks")
  • 4x12 Super 80 ('80s Marshall w/ Celestion 80-watt Classic Leads)
  • 4x12 White 75 ('80s Marshall w/ Celestion 75-watt Creambacks)
  • 1x12 JBG 125 (Custom-made "D" cab w/ vintage JBL G-125)
  • 2x12 JBF 120 (Late '60s Fender Twin Reverb w/ vintage JBL D-120Fs)
  • 4x12 GB 30 (Marshall "100" birch cab w/ Celestion 30-watt "Greenbacks")
  • 4x12 UK VEE 30 (Marshall 1960 TV cab w/ Celestion Vintage 30s)
  • 4x12 CA VEE 30 (Mesa/Boogie Recto large cab w/ Celestion Vintage 30s)

Get Perfectly Miked Guitar Tones in Seconds

Standing on the shoulders of our award-winning OX Amp Top Box, OX Stomp Dynamic Speaker Emulator pedal gives "amp-in-a-box" modelers a packed pro studio full of authentic-sounding guitar cabinets, mics, room modeling, and studio-quality effects — right at your feet.

Say Goodbye to Static-Sounding IRs

Going far beyond the one-dimensional captures of Impulse Response systems, only UA’s groundbreaking Dynamic Speaker Modeling convincingly emulates speaker breakup, drive, and cone cry — providing harmonics and sonic complexity indistinguishable from a perfectly studio-miked speaker cabinet.

Experience Award-winning Room Emulation

In addition to expertly placed close condenser, dynamic, and ribbon mics on your cabs, OX Stomp is the only effects pedal to offer a complete selection of room mics with Dynamic Room Modeling. This gives you the authentic experience of pushing air while recording your cranked amp in a world-class tracking room.

Enjoy Studio-Quality Effects

Beyond mic and speaker cabinet modeling, OX Stomp also lets you craft stunning guitar sounds with UA effects like genuine 1176 compression, plate reverb, chorus, flange, three delay types, and four-band EQ with high and low-cut filters.

Expand the Tones of any Amp-in-a-Box Modeler

Whether you're using a UAFX amp emulator pedal or other popular amp modelers, multi-effects, or profilers — even your favorite amp's preamp line out — OX Stomp gives you over 100 curated RIG setups, giving you inspiring sounds for any amp type or genre, right out of the box**.

Expand your Tones with MIDI Control

Using its rear panel USB-to-MIDI connection, OX Stomp fits right into your programmable MIDI rig, receiving preset changes and realtime control of effects, EQ, and more. It’s the fast ticket to live performance heaven*.

Learn More ›

Powerful App Control with Hardwired or Bluetooth Connection

The UAFX Control app allows you to easily swap cabs and mics, fine-tune effects, assign RIG presets, and configure footswitches to instantly toggle sounds and/or effects. Plug right in with a direct "hardwired" USB connection to your smart phone, or enjoy rock-solid control over Bluetooth.

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What They Say

Ox Stomp is perfect for getting a good tone with just a couple of pedals. We’ve come a long way from lugging huge amps to sessions to get a great sound!

Butch Walker

Green Day, Weezer, Taylor Swift

Ox Stomp is a great tool for practicing on the road! Along with the Lion '68 Super Lead Amp pedal, I get superior sound on the go.

John Notto

Dirty Honey

I really love the Lion and Ox Stomp! They're the only way I can really play my harp through a variety of amp styles outside of a DAW..

Emily Hopkins

UA Studio Sessions

Frequently Asked Questions

UAFX pedals require an isolated 9 volt DC, center negative, 2.1 x 5.5 mm barrel connector (same as standard Boss connectors) power supply that can provide the following current requirements: Full-sized UAFX pedals (with two footswitches) require 400 mA (milliamps) of current; Compact UAFX pedals (with a single footswitch) require 250 mA (milliamps) of current

Connect the pedal using a USB-C cable to your compatible computer, and run the UA Connect application to update your firmware.

You can register your pedal with the UA Connect desktop app or the UAFX Control mobile app.

Dual footswitch UAFX pedals have Bluetooth, and you can download the UAFX Control mobile app from the Apple App Store or Google Play Store, to connect to your pedals and access additional functionality.

Each UAFX pedal has unique functionality. We recommend carefully reading the accompanying manual for each pedal here.

Check our Knowledge Base for additional questions

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*Requires a compatible USB MIDI host, controller, or interface.

**Note that OX Stomp is designed for instrument and line level only — it's not a speaker load or power attenuator. OX Stomp Dynamic Speaker Emulator requires a modern 400 mA isolated power supply (sold separately). Go here for power supply recommendations.

***All product names used here are trademarks of their respective owners, which are in no way associated or affiliated with Universal Audio Inc. or the OX Stomp Dynamic Speaker Emulator product. These trademarks are used solely to identify the products of those manufacturers whose tones and sounds were studied during Universal Audio's sound model development for the OX Stomp Dynamic Speaker Emulator.