I'm just starting to build a HT room in my house. The room is 11'5" by 20'. I have not heard the ascend speakers. How do they compair wiyh the polk monitor 40 & 30? The polk and B&W are the speakers that i have heard. I would like to hear the ascend. With a room the size of mine would I need the 340 or the 170 for front right & left. I think I would use the c340 for my center.