Here in Audiophile forums, at the first page, you may fill in a request to search headlines. I just put in "dedicated lines" and came up with two recent topics with some very good posts on this very subject. If you search there and read what has been offered, you may achieve instant gratification. In fact, you can even post to one of those existing threads if you wish. I hope this will give you a quick start on this diverse and complicated subject.
