What the best amplification for JBL S3100? Magnificent SE, old good PP or tight SS?

I wait a pair of rare JBL S3100 speakers and would like to know - what amplification can be used with the greatest success?
A First Watt F5 will work well with these JBL's. I have this amp for use with my L166's and 4312's! No need for more power! And being Class A it sounds smooth with plenty of low-end grip! 

First Watt F5

Thanks for Your advice!
Also I’ve know about great results with the PP, 30 Watt.

I`m very interested in the opinion of the owners of JBL S3100.