I owned the CA Azur 550 for a number of years. It was a good player that did nothing wrong. To my tastes though, it was clearly a notch or so below the level of the Rega Apollo that I have and that you are currently using. I used the 550 in a second system, so maybe it would have performed at the Apollo's level if I swapped it into that system, which I never did.
Rich
Rich