Do CD Transports benefit much from upgraded power cords?

Nope!

And this is funny!

During a two week rafting trip down the Colorado River - through the Grand Canyon - we drank water only from the river - lots of it. No bottled water. The river was hugely contaminated with viruses, bacteria, protozoa, waste products and who knows what else. Thanks to the last 6 inches of the reverse osmosis pump filter, nobody got sick - ever. I did that rafting trip twice.

Just like a household filtration system, the drinking water in the kitchen is filtered at the tap - just before the end user. It’s no different for an audio system.

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It’s important to understand that digital audio components themselves create noise - which is regurgitated back into the system circuitry. This, in turn, pollutes the other components. An audio system is its own ecosystem. The noise isn’t just coming from the utility company. Much is home-grown.

I use quality power cords in conjunction with quality power conditioners to clean my power. My ears tell me that it’s working quite well.

@steakster

+1 good analogy. I think about power cords as conditioners. I found 2 meters sound better than one meter... hence the rule of thumb of always buy 2 meter cords whether you need them or not. Shunyata has a great video by the founder somewhere that shows how the water analogy for power doesn't work. 

So, these special power cords are able to "filter" out the displeasing sounding electrons?  Thanks for the insight..

Hook up your system to at any point in those 100s of miles of transmission, at step up transformers, step down transformers, at 25 yr old 6 GA and 12 GA wiring, and your system will sound different at all the points you choose. One can't argue that.

What matters is how it sounds at the outlet where utilities code tells you it has to perform within tolerances there or it's not right. AFAIK the same code at the outlet doesn't apply to any point along those 100s of miles of transmission. Enough of that red herring argument. It's been shot down so long ago. How it keeps on like a zombie is beyond me. 

The same goes for power supplies in amps and sources. Some just make them good enough so as to not burn down your house and some can occupy the whole underside of some gear or require its own chassis. When made like the latter, I can see how different PCs would have little to no effect, but the majority of components aren't made that way. 

I've only heard slight differences but enough of one to choose one way over the other. Having heard the better way, how could one settle for less for not much more outlay?

All the best,
Nonoise

"Hook up your system to at any point in those 100s of miles of transmission, at step up transformers, step down transformers, at 25 yr old 6 GA and 12 GA wiring, and your system will sound different at all the points you choose. One can't argue that."

Thanks for the information but how would my system sound different if it were 10 miles or 90 miles from the point of generation? Do electrons age?

I am glad you hear a difference but I am trying to find out why.