Universal Audio OX Guitar Amp Top Box
Universal Audio's OX Amp Top Box is the gold-standard reactive load box and speaker emulator for tube guitar amps, designed for engineers and players who want the sound of a fully cranked tube amp into a real cabinet — at any volume, on any stage, in any studio. OX combines a true reactive load that responds like a real speaker cab to a four-cable-method tube power section, then runs the signal through UA's premium dynamic speaker, cabinet, microphone, and room modeling to produce a 3D-sounding mic'd cab tone ready to print or send to the desk. The included plug-in companion software unlocks studio-grade routing, reverb, EQ, and compression. Trusted by working pros and home studio owners alike, OX is the answer to silent-stage performance, late-night recording, and capturing a cranked amp sound that's genuinely indistinguishable from miking a real cab.
| Type | Amp Top Box |