vsat88

I'm the orginal owner of a pair Norman Lab 10's & pair of 500's & used them until about 3 years ago. The Labs, unconnected & unused, have been consuming space in the room we use to watch movies. After 3 years, can I hook them up and play them without doing damage, or is there something I need to do first??? I'd like to play them to insure they work well before giving as graduation gift to a nephew that would appreciate them. If they are junk, the walnut cabinets are in great shape and I'll offer the wood to the family artist! Appreciate advise/instructions (not involving hiring someone to repair as they are ancient & although nice looking, I can't imagine they could be worth much.)