Amp Top BoxGet the Ultimate Tone From your Tube Amp — Anywhere, at Any Volume. OX Amp Top Box is a premium reactive load box, allowing guitarists to play and record their tube amp in its ideal sweet spots — from the edge-of-breakup to fully cranked — at any volume level, and with instant album-quality mic, room, and speaker cabinet emulations at the turn of a knob.

Featuring Universal Audio’s breakthrough Dynamic Speaker Modeling, OX emulates speaker breakup and cone cry like no other box on the market. It’s the world’s finest boutique speaker attenuator and guitar amp recording solution — overbuilt for years of home and studio use.

Now You Can:

• Get the ultimate tone out of your tube amp — anywhere, and at any volume
• Pair your amp to the world's best reactive load, with boutique UA analog quality — built for years of home and studio use
• Instantly audition dozens of album-quality mic and guitar cabinet setups with front panel "Rig" control
• Get authentic "edge of destruction" tones complete with speaker breakup andcone cry, thanks to UA Dynamic Speaker Modeling