If you already have extra/good power cords on hand pick up a C7/C14 adapter.
I have the following one (purchased years ago), but there are many listed online.
Benzman - RE:
I’ve had lots of experience making power chords for everything from a $300 mini system to systems exceeding $70k.
My Mini system is in the garage and the new cables made a noticeable difference, even in the garage!
I also have one for my Bluesound TV soundbar speaker and the attached sub, and again - it made a noticeable difference.
Of course everything dependes on the quality of the cables
This one from Audio Envy should make a very nice improvement
You should hear a significant improvement in dynamics because they use OCC copper and their own cable geometry/insulations which will lower the noise floor and improve clairty and details
Unfortunately, not all power cables are equal, but Audio Envy are perhaps one of the best values for money on the market right now
Are they the best? - no, but they will sound better than most other well known brands on the market
Hope that helps - Steve.
@benzman - I forgot to mention in my post above that "generally speaking" good power cables tend to make more of an audible difference on less expensive gear - like source components.
My source components have the very best power cables, with solid silver wires, whereas my amp/distribution panel power cables has UP-OCC copper wire.
Regards - Steve