Can upgraded power cords help my setup?


I have some KEF LS50 Wireless speakers and decided to use them with a Bluesound Node 2 via a Lifatec optical cable. Can I see a significant and worthy improvement if I swap out my power cords for something like Pangea cords? Do I need the AC 9SE MKII on the speakers or will the AC 14SE MKII be good for each speaker and also the Node 2 (C7?)? Power cords seem to be the only place left for me to tweak the most out of my setup.

Thanks for any input.
asahitoro

randy-11
A leading authority on high end usually means some guy with a large number of publications in reviewed journals, and a nice big budget for his research lab.

OTOH, placebophiles are often misled on what an authority is.

>>>>I hate to judge before all the facts are in, Randee, but you appear to be totally unfamiliar with the Appeal to Authority. You know, the pseudo skeptic’s favorite illogical argument. You're following the wrong sheep.

try to read more slowly and don't skip the last 2 words in my post above

maybe ask for help with the longer word
Randee, again, you’re obviously following the wrong sheep. Baa, baa!  🐑 🐑 🐑 🐑

Placebophile, really Randy # 11? There are apparently thousands of us around the world that fit into that category. To think we were all drawn into "the most expensive, fattest, grooviest looking power cord" actually sounding different in our systems. You have a lot of work to do & need to get this information out to the audiophile masses before any others are misled. 
Randy 11: Your opinion and your prose! I'm a associate professor and fail to follow your diction ! I will turn your rhetoric over to geoffkait and boxer 11! At least they can decider your enigmatic prose! Please refer to last two words!