Universal Audio OX | Amp Top Box

Get the ultimate sound from your tube amplifier anywhere and at any level. With Universal Audio’s OX Amp Top Box, you can play your favorite tube amplifier cranked up to where it plays best without disturbing the neighbors or drowning out the rest of the band.
But it can do much more than that: With UA’s Dynamic Speaker Modeling system, you get access to tons of authentic microphone and guitar cabinet simulations.
Premium analog components and one of the world’s best reactive load circuits ensure you hear all the detail, dynamics and harmonic complexity your amplifier can deliver.
OX Amp Top Box is the perfect solution for the guitarist in the recording studio or in the orchestra pit at the theater, where you can get maximum performance from your amplifier at a balanced sound level.
As OX is a reactive load box, it responds in a complex and non-linear way when you play the amplifier – just like you experience with a connected speaker cabinet.
This allows you to achieve the characteristic cone cry, which is only generated at certain frequencies and volumes.
And you can hear the lifelike sound of a speaker pushed to the limit when you turn the amplifier all the way up, even if the sound level is at bedroom level.
Not only can you hear the complex sonic reactions of the amplifier, you can feel them too, as OX responds to the way you play just like a well-matched amplifier/cabinet setup does.
With dozens of microphone and cabinet emulations available, you get tons of flexibility in the studio.
It’s like having a world-class microphone placed perfectly in front of just the right cabinet in a great-sounding studio.
Except you don’t have to mess with the mic, struggle with reflections and attenuation, eliminate noise, etc.
Just plug in your favorite amplifier, use the Rig control button to select the best mic/cabinet combo, and you’re ready to record with the coolest sound at all listening levels.
With the OX app for your computer, iPad or mobile, you have full control over all parameters in your OX via Wi-Fi.
You have access to the most important parameters and can switch between microphone/cabinet combinations.
If you don’t want to bring your computer or iPad to work, you can upload 6 complete guitar rigs from home and select them directly from the front panel. Universal Audio OX Amp Top Box Features:

• Reactive load box for tube amplifiers
• Built-in speaker emulation
• Dynamic Speaker modeling emulates all the details of physical speakers
• Access to dozens of microphone and cabinet models
• Play with the amplifier turned up to max at all listening levels
• Select 6 configurable mic/cab/FX combinations from the front panel
• Connect foot pedal switch for additional controls
• Switch between 4-, 8- or 16-ohm connection
• Built-in EQ, compressor, delay and reverb in UA quality
• Headphone output
• Balanced line outputs and S/PDIF digital out for recording
• OX mobile/computer app via wifi for remote control