Hello to all!

I have owned a NAD L40 receiver and CD player (combined in the same unit) for about 18 years. It's good, but I inherited the Rotel RX 845 amplifier/receiver and RCD 855 CD player from my father. Both are good, but my impression is that the Rotel ones are of better quality and sound definition, although older sets (from 1989). Which ones should I keep?

Thank you in advance for your reply, that's appreciated.