KLH model 9 electrostatic Speakers

There is absolutely NO benefit to replacing the stock power cords - contrary to what the neurotically obsessed will claim!

So true, replacing power cords will do sweet *.* to the sound.
As the current draw is so miniscule even a AC plug packs were enough to power the later Accustats ESL's

Cheers George

So far on cables I get Just a little bit improvement, with the nines do make big changes on every amps  I tried.

KLH model 9 electrostatic Speakers
I am thinking if it’s possible to replace the power cord on the power supplies.

Changing power cords on ESL’s power supplies will do nothing whatsoever for the sound.
As rubbing a piece of plastic with a cloth is almost enough to power/charge them😉

Cheers George

Lance thanks, I almost bought Envy pc thinking the nines might need them,

The Cerious Technology Speaker Cable made the KLH bring more music, I noticed the panel are more filled with music info.The bass is much full firm .