Perfectly Mic’d Amp Sounds and Effects in a Pedal

The OX Stomp Dynamic Speaker Emulator, derived from the award-winning OX Amp Top Box, provides “amp-in-a-box” users with a professional studio full of authentically mic’d guitar cabinets, microphones, room models, and studio-quality effects – right at your feet.

Say Goodbye to Static-Sounding IR Cabinets

Universal Audio goes beyond one-dimensional Impulse Response captures with groundbreaking Dynamic Speaker Modeling technology. This technology convincingly emulates speaker breakup, drive, and cone cry, delivering complex harmonics and tones indistinguishable from perfectly mic’d speaker cabinets.

Experience Award-Winning Room Emulation

In addition to expertly placed close mics, OX Stomp offers a complete selection of ambient mics with dynamic room modeling. This provides authentic recording experiences of cranked amps in world-class recording rooms.

Expand the Sound of Any Amp-in-a-Box Modeler

Whether you use a UAFX amp emulator or other popular amp modelers, multi-effects, or profilers, OX Stomp offers over 100 curated RIG configurations. This ensures inspiring sounds for any amp type or genre right out of the box.

Studio-Quality Effects

In addition to mic and speaker cabinet models, OX Stomp offers exceptional UA effects such as 1176 compression, plate reverb, chorus, flanger, three types of delay, and a four-band EQ with high- and low-pass filters.

Customize Your OX Stomp with a Fully Functional Mobile App

With the UAFX Control app, you can easily swap cabinets and mics, fine-tune effects, assign RIG presets, and configure footswitches to instantly switch sounds and/or effects, achieving professional studio tones on your pedalboard.

A Studio Full of Vintage and Modern Cabinets and Microphones

With a rich set of 22 cabinets and six microphones, OX Stomp offers nearly every imaginable tone.

• 1x10 Black Cha (Fender Super Champ / vintage Fender "Blue")
• 1x12 Blue J ('55 Fender Tweed Deluxe with vintage Jensen P12R)
• 1x12 GB25 ('55 Fender Tweed Deluxe with vintage Celestion "Greenback")
• 1x12 Blu 15 ('55 Fender Tweed Deluxe with reissue Celestion Alnico "Blue")
• 1x12 Black D-ux (mid-60s Fender Deluxe Reverb with vintage Oxford 12K5-6)
• 1x12 Black GB30 (Fender Princeton II with Celestion G12H)
• 2x10 V-ux (late 60s Fender Vibrolux / vintage Fender "Blues")
• 2x12 Two Verb (late 60s Fender Twin Reverb with vintage Jensens C12N)
• 2x12 Black 8H (Custom Altec cabinet with vintage Altec 8H Series II speakers)
• 2x12 Ace Top (mid-60s Vox AC30 with vintage Celestion "Silver Bulldogs")
• 2x12 Boutique D65 (Two-Rock cabinet with Celestion G12-65)
• 2x12 Alnico 50 (Fender closed-back extension cab with Eminence EJ1250s)
• 4x10 Bman ('59 Fender Bassman with reissue Jensen P10Rs)
• 4x12 GB25 Thick (60s Marshall with 25-watt Celestion "Greenbacks")
• 4x12 GB25 Punch (late 60s Marshall with 25-watt Celestion "Greenbacks")
• 4x12 Super 80 (80s Marshall with Celestion 80-watt Classic Leads)
• 4x12 White 75 (80s Marshall with Celestion 75-watt Creambacks)
• 1x12 JBG 125 (custom "D" cab with vintage JBL G-125)
• 2x12 JBF 120 (late 60s Fender Twin Reverb with vintage JBL D-120F)
• 4x12 GB 30 (birch Marshall "100" cab with 30-watt Celestion "Greenbacks")
• 4x12 UK VEE 30 (Marshall 1960 TV cab with Celestion Vintage 30s)
• 4x12 CA VEE 30 (Mesa/Boogie Recto cab with Celestion Vintage 30s)

All product names used are trademarks of their respective owners, who are not affiliated or associated with Universal Audio Inc. or the OX Stomp Dynamic Speaker Emulator. These trademarks are used solely to identify products whose tones and sounds were studied during the sound model development for the OX Stomp.

*Please note, the OX Stomp is designed for instrument and line level only – it is not a speaker load or power attenuator. The OX Stomp Dynamic Speaker Emulator requires a modern isolated 400 mA power supply (sold separately). Visit here for power supply recommendations.

Key Features

• The most authentically sounding speakers, cabinets, microphones, and rooms ever emulated in a stompbox
• Authentic speaker modeling including speaker breakup, drive, and cone cry
• Over 100 curated RIG sounds ideal for any amp emulator or genre, providing endless inspiration
• Studio-quality effects, including UA’s original 1176 compression, plate reverb, EQ, and stereo delay (dual, crossover, ping-pong) for perfectly produced tones
• UAFX Control app for precise mic, effects, and footswitch configuration tuning
• Silent switching, buffered bypass, analog dry through

Specifications

• Power Requirements: Isolated 9VDC, center-negative, minimum 400 mA (sold separately)
• Inputs: 2 x ¼" TS
• Outputs: 2 x ¼" TS
• USB: Type-C for updates via computer
• Dimensions: Height: 6.5 cm (2.56"), Width: 9.2 cm (3.62"), Depth: 14.1 cm (5.55")
• Weight: 0.588 kg (1.3 pounds)

Universal Audio UAFX OX Stomp is a professional pedal offering the highest sound quality and reliability. An ideal choice for guitarists looking to add authentic, studio-quality tones to their pedalboard.