Keep and use your system as is! I am familiar with the components. It is a fine system. Good that you had the Yamaha gear serviced. They will be good for another twenty years or so! The Ditton 66's are still excellent speakers!
Celestion Ditton 66’s. ‘Upgrade’ to modern speakers consequences?
I have some vintage Celestion Ditton 66’s that have had their crossovers professionally recapped and serviced. All speaker units are in excellent condition.
My question is.. what might I gain and what might I lose (sonically not financially..) by replacing them with high quality large/floor standing speakers manufactured in the last decade or so?
My amplification set up is a Yamaha C4 preamp and a Yamaha 2200 power amplifier both recently recapped and serviced.
Source is mostly streaming Tidal or CD player via a Chord Hugo DAC, and occasionally some vinyl.