It enhances your audio similar to an surround sound app and equalizer kinda like BBS some TV's have. I think it's the same technology. The desktop apps are called Audio Sandbox for PC and iWow for Mac (iTunes only). They do a very good job at adding bass, and adjusting the perceived sound stage of audio.
At that note, I have not tried this on the Touch Pro 2. Not to scare anyone away from this cab, but I have read other threads of people installing iWow (not sure of which version) and then having to hard reset due to driver issues with the audio.
I'd be interested to know how this version works. If anyone is planning on flashing and could test this please let us know.
This thread and this
thread need to be combined. It looks like this cab will NOT work with the TP2 and will hose your phone drivers.