Help to beginner.

[Andrei889]

Hello everyone, I am looking for a system in my living room, I have already received a new yamaha rx-a2a, and ordered a B&W 603 and central chanel from the same series, also have a REL T zero. But yesterday I heard the KEF LS 50 wireless II playing, and I was amazed at the detail and bass. The room in which I plan to place the system is about 200-220 square foot, tell me what would be more suitable for a room of this size, should I return the receiver and cancel the B&W, and go with the KEF LS.

thanks.