What is an excellent power cable?

If you can get some used quality Audioquest power cords for sale such as the NRG-10, NRG100 or a NRG1000, now that they have come out with better models, go for it.  In the past I have bee able to purchase demo power cords from an Audioquest dealer when they come out with new models.  Thus I was able to purchase their NRG10's for $450 when they first came out and later some NRG100's for $500.  Al in as new condition.  I have always preferred the Audioquest models when they first came out with their NRG10's and 100's.

Hi , I started with Pangea . Then I went to Silnote Poseidon’s, then on to Analysis Cables . I will be trying Maple Shades Power Cables next . Many manufacturers offer a 30 day trial period . Also allow for some breakin time . I can’t comment on the higher end cords , because they are above my “ Stereo Allownce “ set by my wife 😝. Remember “ It’s the Journey , not the Destination “. So Happy Listening , Mike. 

If you spent a few more bought thenew Verastarr foil powercords.
i just added one to my digital and it made a sizable difference in resolution .i had auditioned 2 other cablesover $1k as well 
but not detailedand refined buy if you don’t need the fancy  weave  covering you can get a nice break in cost call Verastarr and see what is available all his cables are very high quality.

If you don't have to over-spend for power cables, but are looking for superior performance for a modest price, I can't recommend virtue audio cable (Jason Terpstra) enough. It is unbelievable what you get for your money. I researched this subject to death. I have a $35,000 2 channel system and I run his power cords and his interconnects. 

To Xenon,

I see you have a budget of $500.00. Some of these power cords will be more than that obviously. I have been experimenting with a few in your price range: Anti-Cable, Audio Art, Shunyata Alpha Series (excellent cable), and lately Audioquest Storm Series Hurricanes (pricey). 

One thing to consider is the connector itself. Audio Art offers Furutech connectors on most of their PC's and I noticed a huge difference with the FI-28 Rhodium connector. Now, if you want to stretch your budget a little bit, the Audioquest Storm Series Thunder starts at $625.00.

If it's anything like my Hurricanes...Get ready for a mind blower.