Yet you feel qualified to comment on Active 50s, etc. Oh well.

I have lived with active 100s for four years. They exhibit no audible distortion. Three of my chums have bought active ATCs after hearing mine: 50s, 100s, and 150s. I've heard all three systems at length, the 50s in two different rooms. None of them exhibits audible distortion, and they all sound superb.

I've also had a shop demo of both active 50s, and 100s. They sounded mediocre, because of a poor source & setup, but there was no audible distortion. I bought my ATCs from an acquaintance who recommended them strongly, not because David Gilmour uses them. David Gilmour does use them, however, which is pretty remarkable given that he could afford any speakers he wished.

So please don't try telling me that ATCs have audible distortion, because I know that they don't.