I think y'all are making this complicated and unnecessarily combative.
1) Speaker cabinet materials have advanced since the 1950s. Does anyone truly wish to argue that Wilson's exotic cabinet materials and Rockport's epoxy resin processes are not more advanced than basic MDF construction?
2) Vintage or advanced technology implementation is a question completely separate from the question of which design one subjectively likes the sound of better. Whether someone prefers the sound of speakers whose cabinets are made of MDF (or vintage hardwood) or whose cabinets are made of more recent advanced resin materials is totally subjective.
Are there any other open issues on the table?
PS: I personally think that generic analogies to other industries are not helpful and do not advance this discussion.
I agree that components and tools have progressed---as to the results being better, de gustibus non est disputandum...
*Theile-Small parametres & modelling software were not available in the 50s. *Diamond (ultra-hard ceramic), magnesium, titanium, beryllium, etc cones were not available either.
*As well as CNC, exotic polymers, etc.
*OTOH, hi-magnetic flux alnico magnets are now much more expensive and, consequently, much less used.
Speaking of contemporary speakers, regardless of price, there seems to be an emphasis on razor-sharp detail extraction and immediacy in reproduction. I attribute this trend to the home cinema, "virtual reality", approach.
My memories listening to vintage models (Cabasse Albatros, Tannoy Westminster, huge Sansui) are of a middle rows presentation. lush sound, and impressive transient speed. (Middle row as opposed to front row, arm's length away from stage)
These were hi-sensitivity speakers using powerful alnico drivers or field coils, driven by tube amplification working in its most linear region @ 0.5-1.0 W. Big sound impressed me no-end when I was a kid!