Oohlala, that is a very good question and to be honest I wouldn't have the foggiest.
But I would venture a guess that the Jena Labs' non-cryo-treated 20 amp Hubbell IEC connector would sound quite similar to the replaced non-Jena Labs non-cryo-treated 20amp Hubbell IEC connector that came stock on my Foundation Research LC-2 passive in-line power conditioner.
-IMO