I would like to warn you before you purchase that, at present, the studiolive series 3 units work only as an I/O INTERFACE for audition. YOU CAN'T CONTROL AUDITION WITH THEM (DAW Control not supported)
Also, the units only output 48khz sample rate at present. If you have current files recorded at 44.1khz, you may have issues working with them.
After being incompletely informed, I purchased a unit for similar reasons and have been waiting 4 months for complete functionality. Others have waited a year I'm told.
Presonus says these functions are coming "soon" (I don't think anyone knows what that means).