It isn't just cables. It's tubes. And tube amps. But my favorite are "MusiCaps" by Hovland. They offer their capacitors in the Antique Electronic Supply catalog (
https://www.tubesandmore.com)
Here's a bit of their prose:
"MusiCaps enable sensitive audio circuits to achieve their ultimate level of performance ... individually machine-tolled and the leads are carefully hand-soldered using lead-free silver-bearing solder .... the leads are stranded, teflon insulated, silver-plated copper ... "
A 0.1µF, 400v cap costs $7.79
The description of the MusiCaps have changed and now, down the page, the "Auricap" has verbage that was similar to what MusiCap only recently used to use:
" ... how much better and more natural audio gear sounds ... highs are smooth and clear without tizziness or hash or dulling roll off ... the mids are meaty and full of emotions ... bass is tight and well connected, chesty and textured with power and authority .... [the highs, mids and lows] sound good as separate elements but they sound so 'together' and 'as one whole' when music plays through them [the capacitors] ... no loss of rhythm, pacing or emotion ..."
How can you ever take seriously folks that write and talk like that? But there's a lot of them out there. They all use the same kind of words that are used by interior designers, fashion designers and gourmet chefs ... but none that engineers and technicians would use.
Now, we just need their definitions for all those words. Tizziness?!!??
Dean