I have a fairly large room (15*30). Im going with a 10 inch hsu sub. Will I be gaining much by going with 170s over the 200s if I cross them at 80hz? I am 90% movies. 10% music. I prefer wall mounts vs. standmounts. My one year old likes to knock things over. I'm doing the 340 center no matter what. Can 200s fill a large room?