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
Ah, Geoff, good point - power cords are indeed directional, the power plug end goes into the wall or conditioner outlet and the iec plug end connects directly with the gear to be powered.  For best results, do not try it the other way around.
Happy 4th
Pennsey wrote (or copied): 
" High-end power cables are seriously a thing. I'm not kidding. If you believe changing the power cable in your gear will improve the audio or video...I have an island I want to sell you."

Since this is an audio forum, I'll buy the island if it improves the soundstage & midrange of my system the way the above mentioned power cord has. Also, it has to be picturesque, warm, sunny, not riddled with rodents or biting insects, spiders, fly's (etc.), and as affordable as the Oyaide Tunami power cord. Deal?   
"....and as affordable as the Oyaide Tunami power cord."

One assumes a Tunami is a giant wave of tuna fish.

use the most expensive, fattest, grooviest looking power cord you can find - run it all the way back to your elec. co.s sub-station too

then pile Shakti Stones on top of it and sit back for the awesome!!