Thanks. I assume the Apollon likewise has very high DF.Some actual measurements here: http://archimago.blogspot.com/2020/01/measurements-hypex-ncore-nc252mp.html
Here is another, from https://www.soundstagenetwork.com/i...rs&catid=97:amplifier-measurements&Itemid=154
Chart 4 - Damping factor as a function of frequency