Hi Bruce (Bifwynne),
As I indicated, Western Electric speaker drivers from the 1930s, and to a somewhat lesser extent Tannoy speaker drivers from the subsequent several decades, often go for tens of thousands of dollars these days. I believe it is very possible to spend six figures creating a Western Electric-based pair of speakers, with custom built modern cabinets and modern crossover components (or perhaps active crossovers used with multiple amplifiers). I haven’t ever heard such a system, but based on multiple accounts I’ve heard and also read about over the years from audiophiles I consider to be particularly credible, and who have either done that or have heard such systems, I don’t doubt that such a system can provide performance commensurate with those kinds of prices.
During the 1990s I did own two different pairs of very large vintage Tannoy speakers from the 1960s, the drivers from which would probably go for upwards of $10K today. I was not particularly enamored of their performance, but my belief is that the reasons related to their cabinets and perhaps also to the condition of their crossover components. That belief is reinforced by reports here and elsewhere of experiences of others I consider to be particularly credible.
As far as electronics is concerned, one of the best sounding amplifiers I have ever heard, at least when used with an easy to drive pair of speakers, was a pair of Marantz Two monoblocks, ca. 1960, which I owned for a time during the 1990s. I believe they would go for a bit more than $10K today. I also owned a pair of the legendary and even more valuable Marantz 9 monoblocks, btw, which in the case of the particular examples I had were outperformed by the Two’s.
And then there are the best of the vintage tube tuners, such as the Marantz 10B (I’ve owned two of them), and the REL Precedent I currently own. I haven’t heard any of the upper echelon models that Magnum Dynalab has produced in the last decade or so (I have heard some of their older models), but I would certainly be surprised if a 10B in top condition, or a Precedent in top condition together with the necessary external stereo multiplex adapter (the Precedent pre-dates the stereo era), would not be competitive with them in terms of both sensitivity and sound quality.
Best regards,
-- Al