After being inundated with emails asking "what does this do?", here's a simple and effective demo.
First, the box is a DI (direct inject) box. On tour, these were used for my acoustic and sitar, the keyboards and a DI split from Billy's bass rig.
I mainly used them at home for record a direct guitar signal (in addition to a mic'd signal), lots of bass and keys and direct acoustic as well.
In this example, I play the chord twice, then you'll hear me flip the switch on the DI activating the Sonic Maximizer, then I play the chord twice again. Put on some good headphones and you can really hear the immense difference.
http://www.daveweiner.com/BBE.mp3