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
Hi @grannyring : thank you for posting your impressions on Majestic MKII power cord.
I have no doubt the Hijiri sounds great, as @lalitk also attests. But a think a fairer comparison with your $1,500 HIJIRI Nagomi power cord would have been the graphene insulated Zavfino Silver Dart power cord at $930 MSRP, 10 gauge, especially for an amp, instead of the 12 gauge, $390 Zavfino Majestic.
The Silver Darts are top of Zavfino line, graphene dielectric and shield. I have two on my way.
The Prima PC I have (also 10AWG, no graphene), at $560 is an outstanding PC, competing right there with much more expensive power cords I have owned and still own.

Hi @thyname, please share your impression on the silver dart power cable.
considering to get one too.
not yet. Raymond told me that the stock is only available by next week in view of Canada thanksgiving day.