As I believe this post was started tongue in cheek, the only thing I will add is that equipment cannot be compared in the parameters of generation. My Pioneer HPM speakers in 1978 brought me more musical joy then than I can even hope for out of my way better speakers now. Context and perspective should always be considered. I still have the HPM's and a pair of Pioneer CS888A's that sound awesome.
All Pre 1970 Vintage speakers suck! Prove me wrong
Have tried many vintage speakers.
My conclusion: All pre-1970 vintage speakers suck. Well-made but crappy sound.
Used with both vintage amps and modern.
I do like many vintage amps such as Radio Craftsmen RC-500, Marantz tube, Scott tube, Heath W5, Lafayette and Pilot tube.
But back to pre-1970 speakers:
No bass, harsh, or honky mids and no highs. Not musical or listenable to me.
Tried many including Acoustic Research AR-3a, 2Ax, etc. The entire AR product line. Also Klipsch Horn, Large EVs. Altec VOTT. Pioneer CS-88 and 99.
Nothing pre 1970 is even close to the better modern speakers.
I challenge you: Prove me wrong.