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Universal Audio OX Stomp Dynamic Speaker Emulator Stereo Pedal Certified Open Box , $313.20 - Add to Cart Skip to Product Information

Universal Audio OX Stomp Dynamic Speaker Emulator Stereo Pedal Certified Open Box

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
Item ID: UAOXStompd2
Universal Audio OX Stomp Dynamic Speaker Emulator Stereo Pedal

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Universal Audio OX Stomp Dynamic Speaker Emulator Stereo Pedal Certified Open Box

Certified Open Box Savings!

Save $85.80 What is Certified Open Box?

The price below reflects your savings.

Savings: $85.80 New for $399.00

A Stompbox-sized Solution for Studio-grade Sonics

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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
What is Certified Open Box Gear?

At Sweetwater, we're so picky that what we call "Certified Open Box" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

Certified Open Box (also known as a demo) means we’ve had it out of the box for our YouTube channel, displayed at events, tested in our studio, or maybe it was in a customer’s hands for a few days and isn’t ‘factory fresh’ as a result. Every Certified Open Box item we sell has Sweetwater’s 2-year Total Confidence Coverage™ warranty and has been tested and verified up to ‘new’ specs by our factory-authorized technicians to make sure it’s in perfect working order before we ship it to you.

When you buy a Certified Open Box item at Sweetwater, you get:
  • 2-year Total Confidence Coverage Warranty™!
  • Products inspected and tested by our factory-authorized techs, guaranteed to function like new (or better)!
  • FREE shipping on most items
  • Equipment that will MEET or EXCEED your expectations!

Click HERE to browse our current inventory of Certified Open Box equipment. Purchasing Certified Open Box gear from Sweetwater is a smart and safe way to save!

Warranty Info

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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

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