Am installing a new AV system. My wife and I are somewhat hard of hearing and want a great CLEAR sound system. Have a large cathedral ceiling room. Thinking of a Yamaha 2700 Receiver to drive M60's(or 80's?), QS8's, EP 500 and a VP150. Any thoughts about the effectiveness of the 150CC in such a set-up? Dialogue is critical as is great stereo vocal imaging and clarity. Any suggestions?