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

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

OX Amp Top Box was a WINNER at this year's 2017 Summer NAMM!

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