Power Cords - Pixie Dust?


As an audiophile I am always prepared to believe that almost anything can make a difference in the sound. But this one makes me wonder. I have a TNT MKV with JMW 12.5 arm. The stand alone motor turns, via a belt, a flywheel that turns, via another belt, the platter.

I have seen an add claiming that replacing the power cord between the SDS speed controller and the stand alone motor can improved the sound of the table, "increasing upper range resolution and sweetness" or some such thing.

I suppose I can see how a new power cord might be argued to improve speed stability, but for the life of me how can a special power cord improve "resolution and sweetness", when the only function of the motor is to spin a belt, that turns a flywheel that spins another belt that turns the platter?? Does this claim make any sense?
jackcob
OK Dave sounds good - but I'm only going for it if it's that new cryo'd dust & then burned in on a cooker for 25 years or so...
Trick PC's for motors is simply a pure placebo product. However, if the TT has a PC akin to a $10 table lamp, I'd be inclined to look favorably on improved connectors.

Having used an Audience PC on a 20" Nokia 445Xpro monitor for a week for burn-in purposes, of course, I observed a moderate increase in brightness only, which I found most interesting.

Jackcob, could you please cite the location of the particular ad you mentioned?
http://store.acousticsounds.com/store.cfm?Title_ID=9549&do=detail

Here is what thew add says:

All the new SAMAs (Stand Alone Motor Assembly) are supplied with an IEC detachable power cord. And while this makes installation in tight-quarters less of a challenge it has one other advantage: it allows you to upgrade the power cord. We didn't think changing the AC Cord feeding the turntable's motor would have much of an effect. That is until we tried the new VPI Super Power Cord. Improvements in background "blackness" and sweeter high frequencies were consistently noted during our listening sessions. For those using the SDS (Synchronous Drive System), the Super Power Cord will yield similar improvements over the stock cord.

thanks Jack that's the one!
now who has actually tried this? HDM & Bob Crump apparently have. Others opinions re: "placebo effect" are obviously just that & are worth exactly what you paid for it. If you have tried this to no positive effect, then that's useful information. If you have tried this to positive effect, then that's also useful information. If you haven't tried it then you have no business publishing pure conjecture because you don't know one way or the other. I'm gonna try it when I get an SDS & will keep an open mind. Whether it does or doesn't do anything for me, that's just one situation & you won't necessarily experience the same result. All systems are different; synergy is the differentiating factor. There are NO absolutes in this hobby.
Bob: Just to clarify things, I haven't actually replaced the cord on my table, as it's a bit complicated. I have an older Michell Gyrodek; the power cord connects with a very weird 3 pin connector I've never seen anywhere else essentially right at the motor and then runs to a "wall wart" kind of power supply, with the cord running out from that power supply to what used to be a cheap rubber/plastic molded plug. In my early days of experimenting with (and building some DIY) power cords, I simply cut off the molded plug and replaced it with a Hubbell 5266CCN male plug. This in itself made a pretty substantial improvement to sound quality, so I am not really too skeptical that a good cord might improve things further. If I could get my hands on a bit more 47 Labs OTA cable and guarantee myself that I could terminate at that 3 pin connector without destroying it or screwing things up, I'd probably go that route as I've used that same setup on my CD/DVD player with very good results.