Universal Audio OX Stomp Dynamic Speaker Emulator

The Universal Audio OX Stomp brings studio-quality cabinet, speaker, mic, and room emulation into a compact pedal format. Designed with UA’s Dynamic Speaker Modeling technology, it goes far beyond standard impulse responses, recreating the authentic behavior of speakers under real amp conditions including breakup, cone cry, and dynamic response. Perfect for guitarists running amp modelers, preamps, or direct rigs, it delivers true-to-life mic’d cabinet tones straight to your recording setup or live mix.

Features

• Dynamic Speaker Modeling Technology – Accurately captures the organic interaction between amp, speaker, and room for ultra-realistic tones.

• 22+ Cabinet and Speaker Models – From vintage 1x12 combos to modern 4x12 stacks, each modeled with multiple mic positions.

• Studio-Grade Effects – Includes UA 1176-style compression, reverb, stereo delay, and EQ for full mix-ready tone shaping.

• Rig Presets & App Integration – Save and recall up to six user rigs directly on the pedal, or use the UAFX Control app for deep editing.

• Stereo I/O – Dual ¼" inputs and outputs for flexible routing to amps, interfaces, or PA systems.

• Compact and Rugged Build – Pedalboard-friendly metal chassis designed for touring reliability.

Specifications

• Power: 9V DC center-negative, 400mA minimum

• Inputs: 2 x ¼" TS (Left/Mono, Right)

• Outputs: 2 x ¼" TS (Left/Mono, Right)

• USB: USB-C (for firmware updates and setup)

• Cabinets: 22+ cabinet and speaker combinations

• Microphones: 6 mic models plus adjustable room ambience

• Dimensions: 6.5” x 3.6” x 2.6” (W x D x H)

• Weight: 1.3 lbs (0.6 kg)