Sheilded/Unsheilded Power Cords


Everything else aside, is there any reason to use a unshielded power cord? Are some aftermarket power cords unshielded are they all shielded?

Logically it seems to me that the less EMI/RF stuff running around the better. Just looking for others opinions.

Thanks all,
Marty
marty9876
Audioengr that's outstanding! I am excited to learn that you've come out with a cable like that. I certainly wish you the greatest success with it.

If when your cable comes out, you would like to put it against one of Dave Elrod's Signature cables, that would be fantastic! If your cable sounds better - I'll eat my hat (so to speak) and buy a few of 'em from ya.

Hey... you know? Sean mentioned that you have really high grade measurement equipment. Maybe you could do us all a favor and buy a few used high end cables on Audiogon - measure them and then resell. You would not loose any money other than maybe shipping - which you could write off as a business expense.

Then.... YOU can publish the measurements on your website. Hey! That's a great idea!!! Then there would be no mystery, no pouting and wishing that other cable manufacturers published their own measurements.

The truth be told!! Audioengr...you have the power!

But if you do this, wont it be amazing to find out how poorly these things measure and at the same time how fantastic they sound?

Audioengr wrote:
If other manufacturers would publish measurements on their cords, at least a comparison could be made.

Come on.. you're pouting. Buy the cables and make the measurements yourself.

Audioengr wrote:
I don't believe there is another manufacturer that has a plausible theory of why one power cord sounds better than another. At least I have this.

Dude... if you had an amazing recipe for Chocolate Chip Cookies would YOU publish the theory on how they were made and why they taste good? Its the same set of ingredients everyone else uses isn't it?

If you're smart you wouldn't share that information and likewise, I am sure that cable manufacturers have plausable theory's - that's how they maintain a "signature sound" (or flavor if you will) They just don't publish the info so that every Joe Blow DIY guy can duplicate their efforts.

If making a cable sound good was as SIMPLE as making it measure good, every single manufacturer out there would be publishing their measurements and people would buy the cable that measured best. It would be a simple world.

Unfortunately that is not the world we live in. Its tough... we actually have to listen for ourselves and decide what's best instead of just looking at SPICE simulations. Darn! I hate listening!!!
Bwhite: I'm trying to do something similar to what you want Audioengr to do. That is, test various cords and collect the results. I do not have some of the equipment that Audioengr does, but then again, i have some equipment that he doesn't have either. Maybe we should move closer to each other : ) Sean
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Then.... YOU can publish the measurements on your website. Hey! That's a great idea!!! Then there would be no mystery, no pouting and wishing that other cable manufacturers published their own measurements.

I wish it were that easy. Besides the possible legal issues with naming other manufacturers on my website, there are actually laws in other caountries against this. Best not to do it.

If making a cable sound good was as SIMPLE as making it measure good, every single manufacturer out there would be publishing their measurements and people would buy the cable that measured best. It would be a simple world.

True. However, even if I prove that inductance or some other parameter accounts for most of the performance of a cord, there will always be second-order effects that are less audible that can be optimized with good recipes, such as dielectric absorption, magnetic distortion etc..... These are much more difficult to measure and there are no standards for measuring these either.
Sean - do you want to be in the cable business??

Here are the requirements:
1) be independently wealthy, because you will not make any money
2) be neurotic about audio and audio components
3) some engineering background
4) really good ears....
Audiognr: I think i've got 3 of the 4 covered, at least part of the way. Try and figure out which part of the equation i fall short on... : )

One can be in the cable business and make money at it. It might not be a lot of money to start off with, but it could be very profitable if you know how to market other people's products. After all, isn't that most wire & cable "manufacturers" do ??? : )