4 ohm speakers too much for old school receiver?

[Tarheel_]

I own Silvers and unless your running your amp at very high levels for long periods of time you would have had absolutely nothing to worry about. The minimum impedance is 3.76 ohms at 27.5 hz. The Silver is a fairly easy load. Measurements are in this test report. http://www.audioxpress.com/reviews/media/1101colin.pdf

Thanks Mikey, the Silvers are still available and the owner also swears they can be powered with moderate power.
I'm trying find time to drive the hour and demo them. I do have a newer Sherwood AVR lying around and may be able to use it.