I come to the conclusion that there is no correct answer to this question. For example, last week, I sold a $16k MSRP CODA #16 amp and now using a pristine 30-year-old $5k CODA #11 amp. I liked the slightly warmer #11 better with my new DAC. I recently sent my amp to CODA for a checkup, and they said it was like brand new and only a $144 speaker connection upgrade was done.
I also got to thinking about other old CODA amps and discovered that CODA in Sacramento is selling a used System 150 amp package. That amp was supposed to be the best CODA amp back in the day and my #11 the lowest end model.
At one time the speaker I was going to buy was the KEF Blade 2 Meta however, I changed my mind to the Yamaha NS5000, mostly for safety issues at that time. The Blade is more demanding than my NS5000 and the System 150 would be what I would look at today given my other gear (imersiv D-1 DAC direct to amp).

