Just ordered the Z7, and will be using it as a pre-pro. You can shut the amps off totally in the Z7 for pre-pro use, or they can be assigned to other zones. Not sure yet if that is just or, or and/or.
My initial use will be a theater pre-pro, but the other zone features will be considered for future home upgrades and what-not.
Looks like, with all the features, I will have my hands full for a while. Pretty exciting.