I got a chance to play this at NAMM (5 minutes before Victor Wooten jumped on the very Fodera bass I was playing!!) and my bass eventually got one and I borrowed it from him.
There's two available - the one labeled "flat" has no EQ or effects. The regular one, just called "PJB - Bass Buddy" has a compressor on it as well as a little gain ('with teeth,' I call it) and a tiny amount of reverb to give it some breathing room.
The compressor is there because the box itself has a really nice compressor on it; though the Kemper's, admittedly, is not as transparent or clean, but maybe you can fiddle with it and find a really light compressor setting.
Enjoy, all you low-enders!