power cord for electrostatic speaker

I will say this (keep in mind that I am not a big spender when it comes to PC , SC or IC ):
From my experience with ML Aerius I , I can report that both -
a) power cable
and
b) upgraded power outlets
did improve the sound.
How much of an improvement ?
Enough to justify the cost of cables (Kimber Kable 10 X 2 , show demo = $220) and power outlets by PS ( X2 , $100 ) .
So, was a little over $300 worth it ?........ IMO, Yes.
If you can't hear the difference , just return the cables
and enjoy the music.

P.S Tweak1 - it should be $869.

You just saved 6 big ones here&now.

Power is their main source of energy.
From my experience, ML are very sensitive
to any changes in the system and that goes also for
PC cable, PS outlet, isolation from the floor
(cones, spikes, platforms, ISO-Pads etc), toe-in, power quality etc.

I own my Aerius I for around 7 years now and have
pretty good idea how to get the most out of them.
However your findings might be different.
Only reporting my observations from my older system, setup & room.

OK, if it is not a big deal - don't plug them in ........ what can I tell you.
Electrostatic...............electro static. How difficulte can it be???