Almost exclusively digital these days, and the amp collection's been well trimmed, so this isn't getting much use anymore and is ready for a loving new home. Babied in a home studio, mint condition. Will ship with original box/packaging as well.

From Universal Audio:

Get Legendary Studio Tones from your Tube Amp - Anywhere, at Any Volume.
OX is a premium reactive load box and guitar recording system, giving you perfectly studio-miked amp sounds from your favourite 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.

• Play and record your tube amp in its perfect tonal sweet spot - anywhere, and at any volume
• Instantly audition dozens of album-quality mic and guitar cabinet emulations with front panel "Rig" control
• Pair your amp to the world's best reactive load, with boutique UA analog quality - built for years of home and studio use
• Get authentic "edge of destruction" tones complete with speaker breakup and cone cry, via UA Dynamic Speaker Modeling

Features
• Premium, no-compromise analog reactive load box for tube guitar amps
• Five finely-tuned guitar amp attenuation levels
• Front-panel "Rig" control for instant, album-quality mic and speaker cabinet emulations
• UA Dynamic Speaker Modeling emulates speaker 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 recording
• Pair with OX mobile or desktop app over Wi-Fi for editing and saving presets