So the question is what I can do to stop this happening - the surge when the power coming back on overrides the standby mode. Why does this happen? Like others seems I need to turn off the main power when I’m away for any length of time. Doesn’t happen with my Marantz CD/amp units which are connected via a PS Quintessence.
I lost a much loved CJ EV 20 preamp to a brown in (not a typo) after a power outage and have tried to isolate my equipment from power surges so that this will not happen. Seems the P5 is not buffering the power back on phase?