I'm thinking of upgrading my speakers. I need all 5. A smaller center, it will be on fireplace mantel, bookshelf for the fronts and walll mountable rears. I was thinking Axiom M3ti for L/R, VP100 for center, and QS4 for suur. Now I came across these, Wharfedale Diamond 8 for center, diamond 8.2 for L/R, and WH-2BLK for surr. What do you think would be better. Axiom's cost $900. Wharefedale cost $500 plus shippind. I want to upgrade from Bose. I will also be using a svs 20-35 PCi sub. Room is 14wx22lx8h. Reciever for now is a panasonic, will be upgraded later. Also if i use wafredales, is it better to bi-wire?