I live in Ottawa Canada and during the recent massive Hillary Clinton-caused power outage (Hey! She blamed us first!) none of my 950's settings were lost.

Mind you it was connected to a big UPS - along with most of my other non-amplifier components.

Just for the heck of it I did let the UPS keep carrying the load even after the power came back on. It outlasted the outage by several hours - although I had powered down most components by then. The 950 sat unpowered overnight and nothing was lost - as expected.

Jeff Mackwood