Universal Audio OX Stomp Speaker Emulator OPEN BOX

The Universal Audio UAFX OX Stomp Dynamic Speaker Emulator is a premium guitar effects processor that packs professional-tier cabinet, microphone, and studio room modeling into a compact stompbox. Stepping far beyond standard, static Impulse Response (IR) technology, the pedal utilizes proprietary Dynamic Speaker Modeling to convincingly reproduce speaker breakup, harmonic drive, and cone cry. It is the ultimate end-of-chain processing companion for "amp-in-a-box" modelers, multi-effects units, or dedicated preamp lines.

Important Note: The OX Stomp is an instrument/line-level device. It does not feature a dummy load or power attenuator like the larger OX Amp Top Box. Do not connect the powered speaker output of a live tube amplifier directly to this pedal.

• Dynamic Speaker Modeling: Captures the complex, physics-based behaviors of real speakers under heavy volume stress, eliminating thin or one-dimensional direct tones.
• World-Class Room Emulation: Combines expertly placed close dynamic, condenser, and ribbon mics with adjustable three-dimensional room microphone placement.
• Studio-Quality Effects: Features an onboard suite of legendary Universal Audio tracking algorithms, including a genuine 1176 compressor, classic stereo plate reverb, modulated delay, and a 4-band mastering EQ.UAFX Control
• Mobile App: Connects via Bluetooth or USB-C to deeply customize presets, manage over 100 pre-curated RIG setups, swap 22 speaker cabinets, and map footswitch functions.
• Advanced Integration: Features full stereo I/O routing alongside rear-panel USB-to-MIDI capabilities for seamless integration into complex, programmable stage rigs.

Technical Specs

• Cabs & Mics: 22 speaker cabinets, 6 close microphones, 6 room microphones
• I/O Connectivity: 2 x 1/4" TS Inputs, 2 x 1/4" TS Outputs (Stereo L/Mono, R), USB Type-C
• Power Requirements: 9V DC, Center-Negative, 400 mA minimum (isolated power supply sold separately)