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
A leading authority on high end? That usually means some guy in a cheap suit 50 miles from home.

Geoffkait: A large portion of electronics is personal taste! The power of the mind can move mountains! I bought a Pangea Amp power cord ( like 8 Guage ) and connected it to a Anthem amp! I noticed a change in sonic capabilities! My belief is the change in amperage flow (to unit ) that does it ! It's amperage that kills you with electricity vs Wattage! So do power cords give blinding change to sonic reproduction! It's your money, and your belief! I own Cardas clear! 4 figure power cables! Do the clear improve my system by 4 figures! IMO NO!
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.
OP - follow dlcockrum's advice except for one thing...

you can still tweak to your heart's content - all you need is knowledge of acoustics, a measurement microphone, a software sound analysis program, and a contractor to modify your room or build another one....

then there is the issue of adding subs to your nice kefs
Randy11: Please share with me YOUR  credentials that circumvent that of CNET!
Corporations provide units at no cost for review because their opinion can drive sales! Not all reviewers are on the take! I tend to follow their advice! I hold multiple (2) degrees from Penn State associated to this subject! Please tell me why I'm wrong!