Marantz SA-10 vs Marantz SACD-10

I was going to sit this one out, but decided to respectfully offer the following comments.  First and foremost, following the scientific method, which is a must for this engineer, it is axiomatic that only one, repeat one, variable is changed at a time.  Then the results before and after are compared.  By that standard the method described by @stereo5 in his post is valid.  Second, I own an SA10 and it is a wonderful player and like you, I would like to know how it compares with the new one.  So far we have not heard from anyone who has directly compared them.  

I bought the SACD 10. It sounds nice.

@regafan were you able to compare the sound of your SACD 10 to a previous generation Marantz SA10?  It would be interesting to know what improvements might be heard.  I have compared my SA10 to Qobuz and generally the Marantz sounds better.  I also have a Luxman D10X, and it sounds better than my Marantz. I find the differences are not huge, but with careful listening they are there. 

I had a SA-KI Ruby. They share the same transport. I am on my third Marantz. I have never had a problem with a Marantz SACD-CD player. The SACD-10 does sound good, indeed, very good, but it should.

Understood.  Marantz transports are very good no question.  I believe PS Audio uses them also, but if I am not mistaken the one in the new SACD that you have is new and better than the ones used in anything before.  Also, the DAC is new and better.  Somebody who has heard them both and who does not sell them or have an economic stake in the discussion would be good to converse with.  Eventually an evaluation will emerge no doubt.