I'm in dilemma. My new receiver will probably be Yamaha RX-V550 or RX-V650. Main thing are movies (95% ). The room is quite big (8x5 meters), but only one part (living room 5x4 meters) of it will be used for HT. (I have kitchen, dining room and living room all in one, with no walls between). I thought about getting JMLab Sib & Cub2 5.1 system for approximately 1100 euro. I was wondering will that system perform well with mentioned Yamaha receiver(s). Or should I go for something else like, for example, B&W 3xx or 6xx series or something from JMLab Chorus series ? I stress again, movies are primary, everything other is not relevant. Thanks in advance !