With the Universal Audio OX Amp Top Box, you can play your favorite tube amplifier at its sonic sweet spot at any volume level. And that's just the start — featuring UA's Dynamic Speaker modeling technology, you'll be able to access dozens of spot-on mic and guitar cabinet emulations. Premium analog components and one of the world's best reactive load circuits ensure you'll hear all the dynamics and harmonic complexity your amplifier has to offer. The OX Amp Top Box is a powerful solution for recording, allowing you to achieve those cranked-amp tube tones at any volume level. Many recording guitarists at Sweetwater prefer this recording method for maximum sonic control. Instead of a speaker cabinet, plug your tube amp into the Universal Audio OX Amp Top Box to explore a whole new range of tonal possibilities. What's New for Firmware v1.2 A free firmware update tops off your OX with the latest speaker models and artist RIGs (presets) from Universal Audio, as well as some live-ready amp and footswitch support. Here's what's included: Five new speaker cabinets 4x12 UK Vee 30 — A modern closed-back cabinet with four 12" speakers; great for heavy, distorted, and scooped amp tones. 4x12 CA Vee 30 — This vintage closed-back 4x12 cabinet is one of the industry standards for rock and metal. 4x12 GB 30 — A basketweave closed-back cab whose 30W "green" speakers exhibit loads of definition and a tight bass response. 2x12 JBF 120 — Punch and articulation in a late ’60s-era cabinet; perfect for loud and clean tube amps, especially within the realm of country, surf, and psychedelic rock. 1x12 JBG 125 — Loaded with a rare speaker that found favor with most famous boutique amp builders of the ‘70s and ‘80s; similar to the JBF 120, but warmer overall.