Do I need upgraded power cables?

@bzawa the important part of your question is that you’re asking other people what you "need", and in my experience, that’s just never the way to go.

fear of missing out means you’re already in fear ... so you’re not in a position to listen critically or to enjoy

Having said that ...

AC cables have a very real effect on the sound, and there are so many options out there, but it’s only something that you consider at the very end when you are happy with what you have and are looking for something to take it over the top without buying new equipment

when you get to that stage, I strongly recommend Shunyata Research. Not only is it very audible, what they sell, but it’s backed by science, and the pricing is incredibly reasonable for the quality… I believe they have the top quality products in the world

No bad artifacts. Great value  

So the question is, what are you going for, and they have a number of options each with different flavors and different price points, but you can never go wrong buying anything from Shunyata

my three favorite cable products from Shunyata are the Theta, the Sigma X, and the new Omega QR, three very different price points

the Gemini 8 is a nice product for very reasonable money, and you can go up from there into Denali and Everest

@bzawa

You got your answer right away from @bigtwin. Order three or four from one of the online sellers that offer trial periods/refunds and audition them for yourself. Audio Advisor is one example.

Personally, I favor The Cable Co. You can borrow burned-in cables from them, listen and decide for yourself. This has become my go-to approach to cable upgrades. I just completed a power cable comparison using their cable lending library and opted to stay with my current brand but move up their line. If you’re interested, PM me and I’ll give you the name of the guy I always work with, there. Very knowledgeable, patient and no hard-sell tactics.

Good luck!

I haven’t read through all the responses, but before upgrading your power cables you should install a dedicated electrical circuit.   It’s the best, least expensive upgrade you can do and while your at it add a good quality outlet.

@zimwig 

How much does this  "least expensive" option add up to, on average?

I'm curious.

@stuartk  I ran two lines and it was like $200 plus cost of the outlets I bought, but my walls were down at the time so may be more if they have to snake the wires and cut holes.  Just to give you a rough idea.