To update on life with my second 1070...

Within the last week I had two "no-audio" incidents - turned on the 1070, then my tv and satelite receiver and had no sound. Switching to another input and then back again restored audio.

The last incident I had followed the same steps, but instead of no-audio I got muffled, static filled audio. When I switched to another input and back again I got a loud screeching sound from my speakers and quickly turned off the 1070. After turning it back on everything was fine again.

After that incident I downloaded the new official firmware update and installed it. The process was quick and painless. I've used the 1070 several times since then and so far have had no issues of any kind to report.