Hi Ronnie from Atlanta:
You can wire up to 7 zones with 2 sources. You can activate 1, 2 or 7 zones at once. But you need to make sure that you are using Impedance matching Volume Controls for each zone. The ATM 7 does not have internal protection. So if you listen to two zones each with a pair of 8 ohm speakers then your amplifier sees a nominal 4 ohm load. Each pair are wired in parallel. Two pair at four ohms might be acceptable for a good high current amplifier like our AMP-200 or AMP-300. Even three pair of 8 ohm speakers equals a 2.6 ohm in parallel would still work on our High current amps. So yes you can activate or listen to multiple zones but no more than two zones at a time without protection.
Good Luck
TL/3915
Customer Service - Q&A
on June 6, 2016