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

@roxy54 

Don't mean to be condescending but you and some others perceive that it does.

The only way of being sure is a properly staged double blind listening test.  These are difficult but not impossible to arrange.  Just changing a power cord is not hard or slow, but with powered speakers is the residue of 'old' electricity remaining in the speakers' capacitors will not allow a clean quick changeover.

Just for the record, have you experienced sound differences from changing the power cord to a turntable motor?

 

Post removed 

As an update. The stock ML cords have been installed on my subwoofers. So I let the system play all night on a playlist. I sat down for a bit before heading out to work. I was able to swap cables between subs and the ML. Small differences between the stock and the Pi ones. Small enough that a new sweep of the DSP program could conceivably minimize those differences even more. I will try that this evening.

 

But at this point it does not seem plausible that this is a good place to invest any significant money. 

I've been following with interest this dialogue. When everyone is referring to "audiophile" level cables, exactly what is it that constitutes such quality? That is, I'm not interested in a brand name, but what is the technology? The composition? Is it a single solid copper cable or a dozen strands twisted, or hundreds of very fine strands, or copper-coated aluminum, or what? 18 gauge vs 12g? Shielded? Surely anyone can replicate quality if there's a sound basis for it, and there must be an explanation for the arguments I've been reading above.

@clearthinker 

Hi,

No, I don't use a turntable and I don't have electrostatic speakers. I am speaking from my experience with aftermarket power cords and wall outlets used with all of my components  as wee as my power strip. You are correct: it is my perception, and that is what this hobby is about.