is Plinius Sa102 "enough" for SF Amati ?

I doubt it, unless you are listening only at low levels. The SFs work best with very 'muscular' amplifiers even though their sensitivity ratings may not indicate it. Otherwise they may likely sound dull and lifeless. I agree about a proper power cord, although the HCFi has been superseded.

Brian

Kops, if you found it to work with the Cremonas it's worth a try with the Amatis. You may want to try the speakers with more powerful amplification to be sure, though.