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Universal Audio OX Stomp Dynamic Speaker Emulator Stereo Pedal

Dynamic Speaker Modeler Stereo Pedal with 22 Cabs, 6 Mics, Effects, Speaker Drive, Room Mic, Rig Presets, UAFX Control App, Analog Dry Through, and USB MIDI Control
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Item ID: UAOXStomp
Universal Audio OX Stomp Dynamic Speaker Emulator Stereo Pedal
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Purchase this item at Sweetwater, and get $50.00 off! The price shown reflects your savings. Effective now through 5/31/2026.
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Price:$349 and 00 cents
Instant Savings: $50 and 00 cents. Original price, crossed out: $399 and 00 cents
$59.00 suggested monthly payments with 6 month financing‡ 36 month financing available* with $399.00 minimum purchase on one invoice.

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Universal Audio OX Stomp Dynamic Speaker Emulator Stereo Pedal
$349.00
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Universal Audio OX Stomp Dynamic Speaker Emulator Stereo Pedal
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A Stompbox-sized Solution for Studio-grade Sonics

Building off Universal Audio’s industry-defining Ox unit, the Ox Stomp Dynamic Speaker Emulator is a single-pedal solution for perfectly produced guitar tones. Simply pair the Ox Stomp with your preferred amp-in-a-box or digital amp modeler to elevate your tone with 22 masterfully emulated speaker/cab combinations, which are powered by Universal Audio’s cutting-edge Dynamic Speaker Modeling. Ox Stomp’s two 3-position mic switches allow you to pair any of its six vintage mic replications to achieve the recorded cab tone of your dreams, and you can also choose an additional mic for your Room control. No produced guitar tone is complete with a slew of effects, so Ox Stomp also boasts an extensive array of delay, compression, reverb, modulation, and EQ parameters accessible via the UAFX Control app with MIDI compatibility to expand your control even further. The 6-position rig knob ties it all together, giving you instant access to six of your favorite cab/mic/effect combinations. Whether you’re running a UAFX amp pedal or any other form of amp modeler, Ox Stomp will transform your tone with record-ready studio sonics!

Note: The Ox Stomp is only suitable for instrument- and line-level signals — this pedal does not feature the load box and attenuation capabilities of the Universal Audio Ox. If you're seeking a full-scale attenuator or load box, make sure to reach out to your Sweetwater Sales Engineer at (800) 222-4700.

More than 20 legendary cabs to choose from

The Ox Stomp is a comprehensive stompbox solution for perfectly produced guitar tones, and it all starts with Universal Audio’s immaculately modeled cabinet and speaker emulations. From classic 1950s combos to roaring high-gain stacks, Ox Stomp sports 22 speaker/cab combos to cover any musical application in the book. Moreover, Universal Audio’s Dynamic Speaker Modeling Technology replicates every minute sonic nuance and harmonic detail of your chosen speakers, including cone cry, speaker breakup, and even a dedicated knob to fine-tune Speaker Drive.

Six vintage microphone emulations

To attain a truly studio-polished tone, speakers are only half the battle — you will need a few mics to capture your cabs! Luckily, Ox Stomp has six spot-on re-creations of the most iconic vintage microphones in recording history. Classic ribbons, discerning condensers, and time-tested dynamic microphones — the Ox Stomp’s two 3-way microphone switches allow you to pair any of this pedal’s microphone emulations together in the configuration of your choice. Plus, the Room knob gives you the power to choose any of the Ox Stomp’s six mic models as your room mic to add a touch of breath and liveliness to your signal. Picky about your mic placement? The UAFX Control app offers in-depth positioning control over all three of your mics, in addition to thorough per-mic EQ settings.

UAFX Control app offers a studio-grade effects arsenal

Sweetwater guitarists are amazed by the studio-grade quality of the Ox Stomp’s mic and speaker emulations. Of course, one last ingredient is key to any well-produced guitar tone: effects. That’s no problem here — simply use your mobile device to pair the UAFX Control app with your Ox Stomp to access an incredible array of studio and guitar effects, from genuine UA 1176 compression to spacey reverb to delay to extensive EQ options.

Once you’ve chosen your required effects, you can save cab/mic/effect combinations to the rig knob for instant access to six of your favorite tonal presets — a must-have feature for guitarists running several disparate digital amplifier models in a single show or session. Moreover, the Ox Stomp’s “B” footswitch can be configured to serve as a mirror image to the “A” side, effectively giving you six more rigs to choose from. Do you prefer a small set of rigs? Set the “B” footswitch to a variety of other uses, including serving as a dedicated on/off toggle for one of your effects. As a bonus, Universal Audio also includes 100 masterfully curated rig presets to choose from right out of the box!

Get the most out of your UAFX gear

UAFX 2.0 is here, designed to give you the greatest control over your tone and your live setup. With this latest update, the Ox Stomp Dynamic Speaker Emulator boasts improved Bluetooth and USB-C controls for enhanced connection with Universal Audio's powerful UAFX app and USB MIDI control, opening a world of vast performance capabilities. Whether you engage the UAFX app to unlock deeper tone shaping and access artist-curated presets and effects, or connect with your programmable MIDI rig for access to 128 recallable presets and enhanced real-time expression, UAFX 2.0 is primed to elevate every dimension of your playing experience.

Universal Audio Ox Stomp Dynamic Speaker Emulator Stereo Pedal Features:

  • Extraordinarily lifelike cabinet, microphone, and effect modeler, designed to elevate amp-in-a-box pedals and digital amplifier modeling units with perfectly produced tones
  • 22 speaker cabinet simulations, offering some of the iconic cab and speaker combos in guitar history
  • Universal Audio Dynamic Speaker Modeling captures every sonic detail and harmonic nuance of the Ox Stomp’s speaker selection, including speaker breakup, cone cry, and speaker drive
  • 6 precisely modeled vintage microphone emulations supply a studio-grade snapshot of your chosen cab
  • Up to 3 microphone emulations can be dialed in at once: Mic 1, Mic 2, and Room (your room mic selection)
  • UAFX Control app offers a wealth of effects to choose from, including UA 1176 compression, reverb, EQ (including per-mic EQ), stereo delay, mic placement options, and more
  • 6-position Rig knob grants instant access to your favorite cab/mic/effect combinations
  • Second footswitch can be configured to function as a mirror to the A footswitch, effectively giving you 6 unique rigs to choose from
  • Includes 100 expertly curated rig setups for track-ready tones right out of the box
  • Analog dry through to keep your dry signal pure when the effect is disengaged
  • Durable metal enclosure with silent switching
  • USB-C port for easy updates
  • Requires a dedicated 9V DC, center-negative, 400mA power supply (not included)
  • USB MIDI compatibility for expanded control

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Tech Specs

  • Pedal Type: Speaker Emulator
  • Analog/Digital: Digital
  • Amp Modeling: 22 x speakers, 6 x microphones
  • Inputs: 2 x 1/4" TS (line/Hi-Z)
  • Outputs: 2 x 1/4" TS
  • USB: 1 x USB-C (updates)
  • Bypass Switching: Buffered Bypass
  • Software: UAFX Control app
  • OS Requirements - Mac: iOS 13 or later
  • OS Requirements - PC: Android 10 or later
  • Power Source: 9V DC (400mA) power supply (sold separately)
  • Height: 2.56"
  • Width: 3.62"
  • Depth: 5.55"
  • Weight: 1.3 lbs.
  • Manufacturer Part Number: GPM-OXSTP

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Reviews

Amazing with Tonex
I love the Ox Stomp! It's amazing just like the Golden Reverberator and Starlight I already have. The amp captures I use on the Tonex come from Tone Junkie and Tone Factor. They sounded amazing before but with the Ox Stomp, I disabled the cab sim on the Tonex and let the Ox Stomp handle all of that. The tone options are limitless. My favorite feature so far has to be the room mics. They add so much realism to the sound. I even run my acoustic guitar through the Ox Stomp. I blend a DI and a 4x12 Bassman cab with room mics. It sounds like an acoustic with mics rather than a piezo pickup.
Sonic Bliss!
The fabulous Sweetwater former SE and now Manager, Mike Picotte, promptly shipped the OX Stomp and it's been nothing but sheer delight to have in the studio. This is quite an extraordinary piece of kit! I've been using the UAFX Dream 65 and Ruby 63 Amp pedals (also great!) with the OX Stomp and loving the tones and sonic possibilities. I've been an OX Box user for several years so was very familiar with the OX Stomp layout and sonic possibilities. The features and functionality of the OX Stomp are superb, with a large range of amp cab, speaker and mic options. If the current $399 price tag seems a bit steep consider you are getting world-class EQ, Compression, Reverb and Delay FXs in addition to the other features (a decent standalone compressor, reverb and delay pedal combined would cost $250-$300 new). The OX Stomp iOS app is useful but needs some upgrading to match the superiority of the hardware. In sum, UAD continues to produce some terrific products for guitarists and the OX Stomp is just another fine example. The OX Stomp is sonic bliss!
Music background: Professional Amateur
Totally awesome
Can't say enough this solved a problem.
No more fussing with mic placement!!

Sincerely RG.
Universal Audio OX Stomp
I just got a Suhr Reactive Load Box (the one without IRs).Link the Ox Stomp to the Suhr via a TS cable from the Unbalanced Line Out of the load box, then output two TS cables from the Ox to a headphone amp. For headphone listening, I don't believe this combination can be bettered.
Music background: Amateur
Made my QC sound awesome
I switched from my IRs to the OX stomp made a whole difference in the feel and the sound more like playing and amp. The delay, compressor, and reverb sounds sweet it's like having 3 effects pedals and cab sim all in one… Awesome
Music background: Pro sound engineer, guitar Player, and studio mix engineer