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Universal Audio UAFX OX Stomp Dynamic Speaker Emulator Stereo Pedal

SKU: UAGPMOXSTP MFR: GPM-OXSTP
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Key Features

  • Explore diverse amp tones with 22 speaker & 6 mic emulations in this dynamic pedal.
  • Achieve studio-quality sound with this speaker emulator's exceptional sonic accuracy.
  • Seamlessly integrate this digital pedal with your existing setup using dual 1/4" TS I/O.
  • Use the UAFX Control app to deeply customize your sound and update this versatile pedal.
  • Compact design (2.56 x 3.62 x 5.55") makes this speaker emulator pedal perfect for any board.
  • Buffered bypass ensures your tone remains pristine when this Universal Audio pedal is off.
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Special Order?Estimated to Ship: 10/20/2025
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Review Summary

Universal Audio UAFX OX Stomp Pedal Specifications

  • Pedal Type

    Speaker Emulator

  • Analog/Digital

    Digital

  • Amp Modeling

    22x Speakers, 6x Microphones

  • Inputs

    2x 1/4" TS

  • Outputs

    2x 1/4" TS (USB Type-C for Updates Via Computer)

  • Bypass Switching

    Buffered Bypass

  • Software

    UAFX Control app

  • Power Source

    9V DC (400mA) power supply (sold separately)

  • Dimensions (H x W x D)

    2.56 x 3.62 x 5.55" (6.5 x 9.2 x 14.1cm)

  • Weight

    20.74 oz (588g)

  • UPC Code

    819937003615

Designed For Use With:

  • Vocal Pedal

Need Help?

For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.

About Universal Audio UAFX OX Stomp Pedal

The UAFX OX Stomp Dynamic Speaker Emulator Stereo Pedal, a revolutionary product in the realm of audio equipment, is a compact, yet powerful tool that brings the richness and depth of a professional recording studio right to your feet. This innovative pedal, a successor to our award-winning OX Amp Top Box, offers an unparalleled "amp-in-a-box" experience, complete with authentic-sounding guitar cabinets, microphones, room modeling, and studio-grade effects.

With the groundbreaking Dynamic Speaker Modeling technology, the OX Stomp pedal delivers three-dimensional, album-ready guitar tones from your amp emulator. This technology goes beyond the capabilities of common IR loaders, offering jaw-dropping speaker, cabinet, and room emulations that convincingly mimic speaker breakup, drive, and cone cry. The result is a sonic complexity and harmonic richness that is indistinguishable from a perfectly studio-miked speaker cabinet.

The OX Stomp pedal also features our award-winning Dynamic Room Modeling, providing a complete selection of room mics that give you the authentic experience of recording your cranked amp in a world-class tracking room. This feature, coupled with expertly placed close condenser, dynamic, and ribbon mics on your cabs, takes your sound to a whole new level.

Beyond mic and speaker cabinet modeling, the OX Stomp pedal also allows you to craft stunning guitar sounds with UA effects like genuine 1176 compression, plate reverb, chorus, flange, three delay types, and a four-band EQ with high and low-cut filters. This makes it an ideal companion for any amp-in-a-box modeler, multi-effects, or profilers, expanding the tones and adding depth to your sound.

The OX Stomp pedal comes with over 100 curated RIG setups, offering inspiring sounds for any amp type or genre. With the UAFX Control mobile app, you can easily swap cabs and mics, fine-tune effects, assign RIG presets, and configure footswitches to instantly toggle sounds and/or effects.

The OX Stomp pedal boasts a generous selection of 22 cabinets and six microphones, offering nearly any tone imaginable. From the 1x10 Black Cha (Fender Super Champ w/ vintage Fender "Blue") to the 4x12 CA VEE 30 (Mesa/Boogie Recto large cab w/ Celestion Vintage 30s), you have a wide range of options to customize your sound.

Please note, the OX Stomp is designed for instrument and line level only - it's not a speaker load or power attenuator. The UAFX OX Stomp Dynamic Speaker Emulator requires a modern 400 mA isolated power supply (sold separately). Experience the power and versatility of the UAFX OX Stomp Dynamic Speaker Emulator Stereo Pedal and elevate your sound to new heights.

Universal Audio UAFX OX Stomp Pedal Features

  • 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
  • UAFX Control app for fine-tuning mics, effects, and footswitch configurations
  • Silent switching, buffered bypass, analog dry through

Product Documents

User Manual

Key Features

  • Explore diverse amp tones with 22 speaker & 6 mic emulations in this dynamic pedal.
  • Achieve studio-quality sound with this speaker emulator's exceptional sonic accuracy.
  • Seamlessly integrate this digital pedal with your existing setup using dual 1/4" TS I/O.
  • Use the UAFX Control app to deeply customize your sound and update this versatile pedal.
  • Compact design (2.56 x 3.62 x 5.55") makes this speaker emulator pedal perfect for any board.
  • Buffered bypass ensures your tone remains pristine when this Universal Audio pedal is off.

What's in the box:

  • Universal Audio UAFX OX Stomp Dynamic Speaker Emulator Stereo Pedal
  • (Power Supply Not Included)
  • Universal Audio 1 Year Limited Warranty