Effects Of Power Cords On Electrostatic Speakers


Several weeks ago I took delivery of a pair of Martin Logan CLX ART speakers. I hooked them up with the supplied power cords from the seller. The sound was pretty underwhelming, so I let them settle in. After about 4 days the sound had not changed significantly. I decided to rob a pair of PI Audio power cords from my phono stages and put them on the CLX. Signicant change and was getting the sound I expected. 

The question I ask myself is why? This is a low current power supply that just feeds the stators. 

If it is indeed significant, and it seems to be, what level of cord is going to meet the needs? No reason to spend more than I have to. 

 

Looking forward to reading your thoughts or experiences. 

neonknight

I have a pair of CLS speakers.  I am a power cord believer for amplifiers.  however, I haven't used heavy power cords on the electrostatic speaker.  

The power supply to the electrostat puts....you guessed it...a static charge on the panel.  It doesn't power the music so there is no need for short dosages of high current during dynamic sections.  So my thought is that power cords are irrelevant and I've been using generic 14 awg cords.

Based on your post I will try better cords and see if I can hear any difference.

Jerry

To be safe I should try the Belden again and see what happens. No reason to spend money if I don't have to. 

@neonknight 

I have CLX ARTs I purchased used.  They came with Martin-Logan supplied power cords.  Are those what you got from the seller?

I upgraded their average Xovers inside which made a substantial increase 

across the board , and a good power cord which we used AQ Thunder 

made a additional increase in fidelity through a AQ Niagra 5000 power conditioner .

electrostats are very sensitive to changes.I no longer own them I also owned the ML Evolution with the powered Bass , as with most speakers in mean 90% in truth go cheap on Xover parts inside . I have for the last 20 years always looked to see 

what mess they offered ,Maggi worst junk out there , those steel inputs pathetic mass os resistance fifty cent resistors and junk capacitors , Klipsch is another one 

I have owned 3 models of each ,sad but truth ,since the Xover is the ♥️ of all loudspeakers, and Xover less doesnot cut it ,no one driver can do everything 

having owned a Audiostorefor a decade and 40 years in Audio 

rule of thumb 25% on average goes into your speakers or electronics including packaging ,the rest R&D overhead and markup ,unless you are spending $$ expect average parts at best inside your product ,$$ is the driving force 

even in $50 k loudspeakers not even close to the best Xovers like Duelund 

and on any SE models they charge 4-1 in $$markup in parts ,

cables far more markup. Just to inform others .research inside your product or go to  Google    Images to possible see what’s under the hood.