I'm all but decided on the Cambridge. The raw specs for both the 640 and 540 are the best in my price range. But I don't have the option of auditioning equipment so I am trying to balance my research and inexperience with the experiences of everyone here. I enjoy the range of opinions I see in reading both my threads as well as others that pertain to my interests. I am quite satisfied with the replies I get to most of posts.
Thanks to all who took the time to join in the thread!
Thanks to all who took the time to join in the thread!