Will voltage dips in the mains supply pose any risk to the ac701?We’re currently in a phase of scheduled blackouts and I suspect the supply is not great.
One can fit a MOV device (metal oxide varister) across the AC pins on the internals of the gear. Those clamp surge voltages and are effective and cheap.
Many manufacturers use these MOV devices in their construction, it's a proven product......a Corcom IEC line filter is another good add on to any AC powered equipment...