It's my understanding that Marantz is not a distributed line. In fact, I sell the line because it is "clean", and not available to anybody on the planet, like Philips, etc. The lack of response you are observing is probably the result of there being no legit Marantz distributors.

Don't get me wrong, there's a place in the world for distributed lines like Philips. You could get those from the AVAD people, Capital Sales, etc., or sign up to be a Marantz direct dealer. I did the latter, but there are plenty of good reasons to do the former.