Update: just received & plugged, listened to a first vynil. Well, I did not think my discs were sooo dirty.. heard a lots of crack & pops I don't usually hear. I think it might just be the phono being more sensitive or something (same turntable, removed my CA CP2 phono stage).
But the bass presence.. wow 😳 quite a difference.
Just to be sure it wasn't something related to speakers, I switched to streaming the same album, and no pop / crack, so I 'll clean the disk and try again.
So far, what I notice is I get quite a lot more details at a lower dB than previous amp, which is great!
I was expecting a more obvious sound stage difference, but not so much. There is that nice "smoothness", which I think is the "Marantz sound" that just makes it easier to listen, without attenuation to the actual ... Emotions?
So far, so good, thanks everyone for your suggestions and recommendations!
Mrob