Power cable Advice...

PERFECTWAVE AudioQuest Thunder AC Power Cable – PS Audio

without knowing your speakers and the rest of your csbles…

On a warmer side with plump bass and thick full mids…Audioquest Storm Series Hurricane

More evenly balanced - Nordost Frey 2 or even Heimdall 2

Slightly on a brighter side - Shinyata Alpha v2 NR or Delta v2 NR

I am using Nordost Valhalla1 and Tyr 1 XLR’s with Kharma DB7 speakers.

@audphile1 

You have had some Acoustic Zen PC's too, where would you place the Garantua in your list? 

@teleos go with Nordost Norse 2. A bit fuller sounding than the series 1… I like it a lot better. I would say if you’re upgrading power cables try Frey 2 on amp and Heimdall 2 on preamp and cd player. If you want a lot fuller sound the the AQ stuff should work.