Here's the listing for a custom set of UREI 811A's:
https://www.usaudiomart.com/details/...pair-speakers/

In the description the seller states:
"
..Original Time Aligned networks re-capped with NOS Soviet era paper-in-oil capacitors all matched within 1% of factory specs..
"

But why? I've never heard anyone doing this before so if there are any benefits, someone please enlighten me.

Also, what benefit would a fella get from swapping his plastic horn for a custom wooden one? Would those benefits be worth the effort and expense?

Cheers,

Derek