Hey CAP
AQ Sky I believe is 2 generations back. I believe it was replaced by the Niagara PSS and then the Wind PSS (or is it the Fire PSS). SOmeone correct me.
I think the differences between the newest PSS Wind/Fire and the Sky would be perceptible, but not gaping. This is not based on personal experience but based on a good audio friend who has the Niagara/Sky and the Fire.
Currently, my XLR need to be updated/upgraded to AQ. They are no-name brands at this time as I sit and save money.
My power cords and SC are all AQ.