Sudden change in Onkyo
I replaced a squeezebox on my Onkyo TX-8511 system with a Denon DNP-720ae.
Suddenly, what was a stable setup for 10 years, started having a problem.
The Onkyo goes into protect mode for a second or so at high volume levels, in and out.
The Onkyo goes into Sylvania SLX-8 which pipes to a number of other zones in the house.
I tried bypassing the home system with some smaller 8 Ohm speakers and did not run into the same problem, but the volume on the Onkyo did not need to be turned up nearly as high for those speakers than it did for the house setup. Nothing has changed on the home system - using same volume level as I have for quite some time.
I isolated different output devices through the main setup and still having the same problem.
Checked for shorts, and nothing came up.
Unit is not getting hot.