@jea48
For the AR-1000 and the NAD T785, you have identified the correct pieces of equipment. Concerning the capacity, perhaps I should have purchased more, however the clicking that I hear occurs when the NAD is in standby mode too and appears to be at random. This is what lead me to believe there was something going on with the power line to the house (or maybe that's normal).
Before I added the dedicated 20A circuit, I was using a different socket (different circuit) in a house built in 1925. I was already aware that this circuit provides power to many other sockets and lighting in the house and believe it to be at maximum capacity. So there were occasions (old circuit) when the lights would flicker simultaneously with the clicking of the AR-1000. I suspect someone else in the house turned something on, or did something to cause the lights to flicker.
At the risk of adding any confusion, I previously used a 2000 watt unit when I was also powering my Plasma TV that I also purchased over seas. That unit broke and I no longer use the TV so I replaced with the AR-1000. I mention this because the times I would hear that unit click was when music was loud and/or the TV was on. So there I could draw a correlation between power used and the click.
Lastly, there is a 3rd pin for each of the inputs in the front and the plug for the wall socket, so I'm fairly certain it's grounded. No humming or anything else has caused me to think I have a grounding problem.
Is anyone aware of a better product? One that doesn't click.
Thanks for taking an interest and for the help. Please let me know if I can provide more details that would be helpful.
