Why Power Cables Affect Sound


I just bought a new CD player and was underwhelmed with it compared to my cheaper, lower quality CD player. That’s when it hit me that my cheaper CD player is using an upgraded power cable. When I put an upgraded power cable on my new CD player, the sound was instantly transformed: the treble was tamed, the music was more dynamic and lifelike, and overall more musical. 

This got me thinking as to how in the world a power cable can affect sound. I want to hear all of your ideas. Here’s one of my ideas:

I have heard from many sources that a good power cable is made of multiple gauge conductors from large gauge to small gauge. The electrons in a power cable are like a train with each electron acting as a train car. When a treble note is played, for example, the small gauge wires can react quickly because that “train” has much less mass than a large gauge conductor. If you only had one large gauge conductor, you would need to accelerate a very large train for a small, quick treble note, and this leads to poor dynamics. A similar analogy might be water in a pipe. A small pipe can react much quicker to higher frequencies than a large pipe due to the decreased mass/momentum of the water in the pipe. 

That’s one of my ideas. Now I want to hear your thoughts and have a general discussion of why power cables matter. 

If you don’t think power cables matter at all, please refrain from derailing the conversation with antagonism. There a time and place for that but not in this thread please. 
mkgus

Showing 13 responses by boxer12

doitwithlife, Thanks for the graphs!

Don't worry about mzk, he has made a hobby out of letting everyone know they really don't hear what they do. Pretty much hits all the PC threads. Even a coax thread occasionally (lol)!   
kosst,
I'm running an Aloia SS power amp, which I bought about a week and a half ago. This amp is in two pieces. One is the power supply which weighs about 80 pounds alone. The other piece is the amplifier portion. I believe it is very well engineered and it sounds wonderful. I initially put an inexpensive power cord on it (10 gauge) and listened to it for a few days, then put "my standard" aftermarket cable on it. Although not terribly expensive, it's an Oyaide Tunami cord, also 10 gauge. There was improvement in clarity top to bottom. Just my experience. 
prof say's:
"Then there are those of us who have "heard" obvious differences, but through more careful testing, realized it was our imagination.Of course, we are the fallible ones; the infallible don't even have to test themselves ;-)"

And...

"The problem is that the technical claims tend to be marketed to audiophiles who typically don't have the technical know-how to vet the claims. They get that cool sounding technical story and think "wow, that sounds convincing, sure looks like they know what they are talking about!"   Then of course they "hear" the effects."

In the immortal words of Ronald Reagan to Jimmy Carter in 1980 during one of the presidential debates:

"There he goes again"

Merry Christmas ;-)
I'm one of them. Used Oyaide Tunami cable with Furutech connectors. Very nice PC's for the money. 
pkvintage, "What happens when you plug an expensuve power chord into a cheap power bar that is plugged into a $1.00 wall socket? Or is it automatically assumed that a power conditioner is part of the equation."
Good question; Everything is part of the equation.

IME, you can control this equation to greatly improve your sound quality. This is what I’ve done to clean up the power to my system:

Power amps:
Have Oyaide Tunami power cables plugged into an audience conditioned which is connected to an SR wall outlet. I’ve tried them directly into the wall & find that the audience conditioner improves the sound considerably.

Preamp:
SR power cable plugged into Acoustic Revive conditioner which is plugged into an ExactPower transformer. The transformer has an Oyaide power cable connected to a Pangea premium XL outlet.

Front end:
Turntable uses DH audio power cable into a VPI analog drive system which is connected to the ExactPower transformer.
CD & DAC are connected with Oyaide (DAC) & Furutech (CD) power cables into the Acoustic Revive conditioner.
Power supply for the DAC & Phono amp have a Furutech flux 50 connected with an Oyaide power cable into the Acoustic Revive conditioner

I’m by no means saying this is the "best" solution to cleaning up the power going into the components, just that it all makes a difference to sound quality.
In addition to ARC (a very well respected company BTW), Audio Alchemy's also states this in their manual;

You will get the best and most reliable performance from the DDP-1 by using high quality audio cables. We recommend against using the "freebie" cables included with blue-ray players, CD players, etc.

I don't recall if they included cables with their equipment or not. If they did, it's still in plastic in the box it was shipped in.  


prof,
I have no doubt you’re a smart guy, just read the last two sentences of the OP’s original post. He wasn’t looking for an alternative viewpoint
prof " Why don’t you take their tone to task, I wonder?"

Because they are not " derailing the conversation with antagonism", as the OP requested
Kosst, 
" Why not spend $1500 on a power cord that would do the same job as a $5 length of 14g lamp cord and $10 worth of caps, resistors, and inductors! If your goal is to clean up the power supply, THEN FIX THE POWER SUPPLY. This isn't rocket surgery!"
A couple things here:
1. There is no such thing as "rocket surgery"
2. You don't need to spend $1500 to get an improvement from a power cord
3. The power supply of an amplifier is not the end all to sound quality.  
prof,
You missed a couple of your recent quotes in your post above, so I'll add them:
" Or, an alternative possibility is that you have wasted money on a product whose performance was oversold to you"
"And we are getting just as great results without wasting money"

That stated, "wasted money" is a rather harsh statement for those of us who do hear an improvement in sound quality from power cords even though you don't, especially since the OP specifically asked that " If you don’t think power cables matter at all, please refrain from derailing the conversation with antagonism"
analogluvr,
" The nerve of him!  He probably doesn’t have a clue what he is talking about!  And neither do all the science based individuals who study confirmation bias."

I disagree & suspect they are all very smart people, just ignorant in this regard. 

"Just trust your ears 🙄"

Will do / Thanks!