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OX is a premium reactive load box and guitar recording system, giving you perfectly studio-miked amp sounds from your favorite tube amp. OX lets you play and record your amp in its sweet spots — from huge clean tones and edge-of-breakup to fully cranked — at any volume level, and with mic, room, and speaker cabinet emulations at the turn of a knob. 

Featuring Universal Audio’s breakthrough Dynamic Speaker Modeling, OX is the first system to accurately emulate speaker drive, breakup, and cone cry — making it the world’s finest speaker attenuator and guitar amp recording solution.

A Complete Guitar Recording System
OX’s front-panel, six-position RIG control allows you to quickly choose from complete setups — including emulated speaker cabinets, close mics, ambient room mics, and up to four simultaneous studio effects. OX is also the only guitar recording system to offer a complete selection of expertly placed room mics, giving you the authentic experience of pushing air while recording your cranked amp in a world-class tracking room.

Dynamic Speaker Modeling
UA’s groundbreaking Dynamic Speaker Modeling faithfully emulates speaker breakup, drive, and cone cry — an essential ingredient to authentic tube amp tones. Using the Speaker Breakup knob in the OX app, you can control the harmonics and sonic complexity that occurs only at certain frequencies and volume levels on various speakers — far beyond a static Impulse Response system — giving you the same sonic phenomenon that occurs with a real speaker cabinet.
All The Right Connections
Not only does OX Amp Top Box feature a front-panel headphone jack for silent practice with your cranked tube amp, it also sports a bevy of connections for all kinds of recording and live workflows. Stereo S/PDIF digital outputs via RCA and optical TOSLINK, as well as balanced TRS stereo line outputs with front panel level control, give you the necessary connections for studio monitors, DAW, or live mixing console inputs.

Features

• Premium, no-compromise analog reactive load box and guitar recording system for tube guitar amps 
• Instant album-quality mic and speaker cabinet tones via front-panel RIG control
• Get record-ready sounds quickly with expertly-placed virtual mics and cabs — no amp miking required
• Five finely-tuned guitar amp attenuation levels, from completely silent to whisper quiet to full band volume
• UA Dynamic Speaker Modeling emulates speaker drive, breakup and cone cry 
• World-class Universal Audio EQ, compression, delay, and reverb effects built-in
• Selectable 4, 8, and 16-ohm operation 
  
• Front-panel Headphone out for silent practice with cranked tones
• Balanced TRS line outs and S/PDIF digital outs for stereo recording 
• Pair with the OX mobile or desktop app over Wi-Fi for editing and saving RIG presets