I've owned my Z9 for 3 months now. Everything said about it is true. This is definately the king of the hill of Receivers. My problem is that after 3 months is became difficult to turn on. After pushing the power button it would go on than off several times (10-15 times) before it would stay on. It would even turn off without warning. I checked the manual and checked the plug for proper insertion and speaker wires. All Normal. Also, I do not have this in an enclosed cabinet as I took the warnings about running hot, so it sits on a shelf with lots of air circulation.
I actually purchased an Extended Warranty Service plan from Circuit City so it is being fixed as we speak. I writing to find out if anyone else has had similar problems.
Ted