Does Gryphon Diablo 300 Benefit With A Costly Mains Power Cable?

I do feel using one main brand / type of cable adds synergy.

Synergy probably doesn't apply to power cords, you match them to a particular piece of equipment. But interconnects and speaker cables - definitely. Still, I might be wrong about power cords if we are talking highest level, there absolutely everything matters. Interesting subject.

ryder, I play Nakamichi 682ZX cassette deck with $1350 and $1000 RCA cables, swap them depending on the mood. Some will say that I overspent, and those numbers are what I paid, one used and another deeply discounted new pair. I tried a few less expensive cables but I am sorry - they were not even close. My RCAs are Wywires Diamond and Purist Audio Neptune.

@ryder I reduced the cost of my Dragons by purchasing one metre lengths. I paid no more than $3500 to $4000 each for them, from a dealer.

Audioquest 230v and 120v cables are not interchangeable, regardless of plugs.

My Diablo 300 is powered by a Synergistic Research Atmosphere X HC (L3) powerchord with excellent results .  I have used Audience AU24, Audio Quest (not the Dragon…), as well as others.   The SR pairing led me to change my system to a complete loom of SR Atmosphere X Euphoria cables and power conditioning.  Not sure brighter is something you will achieve with the Diablo 300 as I don't believe it is in it’s DNA but a dynamic very large three dimensional soundstage with excellent and engaging detail are all present in my room.