The toneprints for the compressor and the tube drive are separate and you can have one of each loaded. I really like mine, but you cannot modify the toneprints they have since it is a different format than the spectradrive, and they have not come out with any new ones, but I have found the Nathan East compressor and the clean boost meet most of my needs. If you were looking forward to tweeking you're out of luck. You do get the compressor, tube distortion (I really don't want alot) DI and headphone amp and it is really quiet. There are good youtubes demonstrating what they have.