Do CD Transports benefit much from upgraded power cords?

I recently did some experimenting on this exact topic.  I have some very good DIY cable, solid core copper with silver plating, and have used it throughout my system.  I had been using it as the power cord to my Bel Canto CDT-3 transport with the pretty  good  IeGO 8075 rhodium plated copper AC plugs and thought the sound to be fine.  I found a pair of Oyaide 046 plugs that I had stashed and decided to give them a try on this power cord.  There was an obvious change in sound, a bit more inner detail, the images took on greater palpability being more specific and more rounded.  The change wasn't huge but easily noticeable. 

This had me wondering about further improvements by using the Oyaide 004 plugs instead, which are another step up.  The 046's are a bit sweet in my opinion.  The 004's offer greater detail across the board and greater control.  They also are more dynamic and the bass is more textured.  Honestly, I think the 004 betters the 046 in just about every way, unless you need the sweetness that the 046's have.

So yes, in my experience, it's well worth it to upgrade your transport power cord as much as you can afford.  In a resolving system, just about everything does matter

@jasonbourne71

"NO! Same for a microwave, hair dryer, fan, turntable."

About that microwave:

Years ago, the concept and theory of premium PCs pegged the needle on my BS meter. Long story, but let’s say I was dragged kicking and screaming in the the PC camp. After careful auditions, I didn’t just "drink the Koolaide". I chugged the whole pitcher. I expermented with premium PCs on good systems, "so so" systems, cheap systems, cheap gear -- automotive systems. Even upgradedthe internal wiring of amps, preamps, etc. The PC upgrades were clearly audible. Every time.

One day as I was watching a movie and eating popcorn, I was annoyed with the unpopped kernels I had to navigate around. But, if you cook it longer, it dries out the popcorn. What’s a movie/popcorn enthusiast to do? What was needed was more/better power. Hum? How about a hack of the Panasonic microwave and install better power delivery? I had no idea IF it would make a difference, but it would be fun trying.

I was (and still am) a dealer for a popular brand of PC, As a baseline test, I boiled a cup of water standing at room temperature and measured the tiime it took to bring it to a full boil. Then I cut off an end of a $150 (retail) cable, ran it internally into the chassis of the microwave, and attached via silver solder to the connection point. Then placed a cup of water (at room temperature) inside and hit the "start" button. The water came to a boil 10% quicker. I recorded these tests via video, and can probably find them inserted inbetween Christmas videos somewhere.

I thought it would be entertaining to write up a review and sent it to my <brand> rep. I titled it: "<Brand/Model> Special Orville Redenbacher Edition". The rep got a kick out of the review, and unbeknownst to me, it made it’s way up the ladder to the company president AND the cable designer. As amused as they were they, quite intelligently, decided NOT to publish it in company newsletter for a variety of reasons. But, I did get a call from thet cable designer (a guy with a strong history of successes and long pedigree) who stated that it actually made sense to him that a premium PC would improve the performance of the Panasonic microwave.

So, if you’d wondering if someone put LSD in my oatmeal this morning, this is a test that can be easily duplicated at home in your spare time. I’d be interested to see if the results are consistent.

And, oh yeah, the popcorn was better, too.

To answer the OPs question: Without a doubt

jasonbourne71 appears to be a hideous, miserable deaf person in his late 90s, whose only role in life is ruining things for others.  It makes me angry every time I read one of his posts, and I sincerely wish he would just go away.

Only a complete moron would equate a $4k CD transport/player with a hair dryer.

Ignore the troll.

It’s unfortunate, but the guy has no real equipment, and as such, feels the need to shout on every cable post that nothing matters. I mean, if you have no point of reference, I guess it doesn't. 

Same guy was "schooling" me on how his $15 DVD player sounds just as good as my $6K Esoteric. Uh-huh. Sure it does.

Some people just aren’t worth arguing with. He’s not here to learn anything. Ignore him.