Thanks for your input. So here's what happens next:

I contact Fred H. for his input on preamps to use with the Snap AV 8 ohm - 12 channel amp. Fred gives me pricing on the Parasound PreZ and a basic Calrad Preamp that will suffice if budget is an issue. I submit recommendations to dealer we working for and he replies we now doing job with Control 4. So reviewed their product line up and had him source 2 Control 4 units. These are the 4 zone Power Amp # C4-AMP104 + the 8 zone version # C8-AMP108.

My guys are wiring the job now. Project to be done in about 7-10 days due to main contractor's work schedule. I will check back when done & let every one know how it comes out.