Many nice gents in this site, highly reputable common folks audiophiles like @lalitk @wig and others have mentioned these, so it’s probably time to create a specific thread on Zavfino, a direct sales cables company based in Canada with presence ‘ distributors in US, also direct:

I took the advice of these folks with a power cord, the Prima MK2

I could not be happier with this cord, something that would easily cost $2,000 or even $3,000 from other better known cable makers. It’s outstanding, for about $500. Absolutely amazing build, and packaging too. It sounds great, very quiet. I am sure the cheaper PC, the Majestic at $390 is very good too: 
I now have the Prima speaker cables on my way. Call me “sold”.

No BS, truly top quality cables company that flies under the radar. Very affordable too. Take a look. No relation to the company, just a happy first time customer, thanks to my Audiogon friends here
“The improvements are cumulative, and I believe mostly due to the full loom concept.”

@thyname, Exactly!
The fusion XLR still on the way. Can’t wait to try it. 
Wondering what is the difference bet Prima and silver dart, I am considering that  too.

Well, I received the Fusions on Fri., I put about 11 hrs. on them so far. These are the first cables I’ve tried, that went thru many changes in sound in my system. Zavfino’s website states; their fabrication prosses, equals 30 to 40 hours of break in time. So that gives me 40/50 hrs. on mine. I’m hoping that they will settle in around 20 hrs. of me spinning vinyl. So far I’m I’m impressed after the 9 hr. mark, I could only imagine the sound when they're fully broken in! TBC
OK, hours 13&14 on the cables, the base was still there, the highs were a little hot & had to turn the volume up, to get voices correct. 
Received the Dart power cord today. Thank you. It looks new! The little fraying at the one end was corrected by adding a 1" length of additional shrink tubing. It looks natural.