HI all looking for advise on two items ,First Looking at upgrading Vp150 v4 to VP160 or VP180 .Looking at M80s or M100s.I presently have 4 QS8s .AVR Yamaha RX850. and looking at the ADA1250 .My room is 17'x18' x7' I listen to a lot of assorted music and of course movies .Any help on the above would be greatly appreciated.

Bob M

M100 V4, VP180 V4,QS10s x4 V4 M2 V4 X2 EP500 V4 X 2,ADA 1500-3, ADA1250 - 7 N3