ROGERS LS 3/5A MONITOR SPEAKERS

You don't need a specific amp, but if these are the 15 Ohm version they will perform better with a tube amp vs a solid state or transistor amp as you might know it. Look at the back amnd see if there is a lable with the resistance stated in Ohms. I would use whatever you had on hand (I have way too many amps) just to hear if they are damaged. There is a limitation on the wattage they can handle but I don't remember that specification. Perhaps some one will post that information for you.

I have a vintage LUXMAN R-1050 receiver I can try them on.

they are 15ohms with matching serial numbers.

I will give them a whirl this afternoon

I believe 15 OHM is the coveted version as well

also try them with tubes if you can, they should work especially well with them

As mentioned, no "special" amp is needed. Don't drive the too loud in the beginning.

The chances are good that solid state amps generally speaking will make the LS3/5As sound rather sterile and dry whereas low to medium power tube amplifiers will make them sound full bodied, natural and musical. Allow tube amps to warm up at least one hour before listening critically.