I have the Monitor 11s and the CC-370.
I have auditioned the ADP-370s, but find them a little too diffuse for music...they do sound great for movies though.
I have not had the opportunity to audition the QS8, but know they are a quadpole design, with bipolar electrical chracteristics.
If I don't go with the QS8, I will probably get a pair of Monitor 5s or 7s for the surrounds.
From what I have read, the QS8 can provide the proper surround for both music and movies.
Music is the primary objective, perhaps 90/10 music/movies.
