A look at some of the recently posted ancient Lansing and Altec advertising literature on audioheritage tells a good story. The answer is of course yes, things have advanced, but the quantum leaps took place then. Today's biggest advantage is in affordability (despite the puny looking prices in the old catalogs, non-inflation adjusted). Since the 50s certainly, it's just been a matter of cost reduction, miniaturization and refinement. One of the clearest and best symphonic recordings I have (from an RCA cd) is Rubinstein recorded by RCA in 1956 and, of course, mastered and monitored using contemporary equipment. So at the top end at least, things have clearly been pretty darn good for a long time.
And BTW horns are nonpariel when used properly, something challenging to do.
And BTW horns are nonpariel when used properly, something challenging to do.