Hi,However, what you said about the standby power only being enough to allow the remote control to wake up the amplifier seems strange as the amp is warm when to the touch when left in standby.
The warmth is possibly the linear regulator powering the digital electronics. I have a Cambridge Audio Azur 650A which is in standby, similar specifications to the Denon PMA800NE, rated at less than 1watt in standby, and is cold. Maybe there is a fault in your amplifier ?
The video - burn in is a fallacy. The switch on energy surge - again, not an issue. When you examine the current spike into the reservoir capacitors of a power supply, which is charging them 120 times per second, especially at higher volume output of the amplifier, then the surge current once per day due to switch on, is not an issue.