brwsaw - One last question - Have you listened to your M80s full range or do you use a sub? Crossed over where?
I've experimented with 2.0/2.1/3.0/3.1/5.0/5.1/7.0/7.1 and have found each work well with different sources/inputs.
With the M80 I've been crossed over at 80 and 90 100 and 110 in different rooms, which ever sounded best in that room.
The HP's are run at 80 for HT, but more often than not I'm listening in 2.0 for music and 3.0 for the PS4.
I'm sure you'll be happy with the M80's. Congrats.