Expensive Hifi main cables

[steevo]

Hi I have discovered some technical articles on the Russ andrews website claiming that expensive mains cables Woven Powerkords filter out high frequency noise which intern reduce amplifier distortion.



Here is how to get to it, I can post links unfortunately

russandrews.com

here is how to get to the article

Information Hub tab at the top of the page

then select
A Wealth of Information... Article Archive

then select
Technical Articles

and then
RFI research & test results

and finally download the article
Download the White Paper on Interference & Distortion Reducing Capabilities of Woven PowerKords


has anyone else had a look this report and his data??.



Cheers

Steevo

 

[BoredSysAdmin]

http://www.russandrews.com/viewindex.asp?lookup=1&region=US&currency=USD&article_id=cableclamptestresultsA&customer_id=PAA0457065110809NYRRNBKTVULENOZH

I just love phrases like

We're not talking about the sound and video improvements (which are clearly audible and visible) but physical, scientific differences.

and graphs like this one

I'd love to see Mr Andrews be able to clearly tell the difference last 3ft of power KORD does to "filter" RFI at 450Mhz - i'm sure they are very significant.....

 

[sholling]

Horse dump with graphs is still horse dump.

 

[3db]

This smells very bogus to me. I admit its been 20 years since I last studied r/f but I do remember cable attenuation was measured by db/{per some unit of distance) usually large distances, like a 100ft or so. And I'm wondering if these nulls he's seeing are actually reflections in a line to improper terminations. I know that rf energy reflects back when the cable isn't terminated properly meaning matching the impedance of the cable with a terminator.

 

[Rickster71]

95% of site is Utter BS.

The only thing I like is the idea of braided speaker cable...
( Though their prices are as ridiculous as the rest of the site )
Better left to braiding a DIY pair, if so inclined.

 

[jamie2112]

Pure hogwash.............don't believe the hype!!

 

[AJinFLA]

http://www.asa.org.uk/Complaints-and-ASA-action/Adjudications/2008/3/Russ-Andrews-Accessories-Ltd/TF_ADJ_44177.aspx

Lucky for the US "high end" industry, the FTC is unconcerned with the type of consumer fraud and scams they perpetrate on the susceptible willing (aka "audiophiles").

 

[highfigh]

The only thing I like is the idea of braided speaker cable...

Why do you like it?

 

[mtrycrafts]

This smells very bogus to me. I admit its been 20 years since I last studied r/f but I do remember cable attenuation was measured by db/{per some unit of distance) usually large distances, like a 100ft or so. And I'm wondering if these nulls he's seeing are actually reflections in a line to improper terminations. I know that rf energy reflects back when the cable isn't terminated properly meaning matching the impedance of the cable with a terminator.

Yes, absolutely most likely reflections at those frequencies as it would matter if it is impedance matched at both ends or not.

 

[mtrycrafts]

http://www.asa.org.uk/Complaints-and-ASA-action/Adjudications/2008/3/Russ-Andrews-Accessories-Ltd/TF_ADJ_44177.aspx

Lucky for the US "high end" industry, the FTC is unconcerned with the type of consumer fraud and scams they perpetrate on the susceptible willing (aka "audiophiles").

Great link, thanks. That was in 2008. His web page still has those claims. I wonder how he is getting away with them.

 

[mtrycrafts]

Hi I have discovered some technical articles on the Russ andrews website claiming that expensive mains cables Woven Powerkords filter out high frequency noise which intern reduce amplifier distortion.



Here is how to get to it, I can post links unfortunately

russandrews.com

here is how to get to the article

Information Hub tab at the top of the page

then select
A Wealth of Information... Article Archive

then select
Technical Articles

and then
RFI research & test results

and finally download the article
Download the White Paper on Interference & Distortion Reducing Capabilities of Woven PowerKords


has anyone else had a look this report and his data??.



Cheers

Steevo

Hope your question was answered. It is a rip off product.

 

[Rickster71]

Why do you like it?

I like it because it looks purddy.

I've associated it with the different twist rates in CAT 5 & CAT 6.

The benefit Is that the twists in the wire cancels the magnetic coupling, EMI/EMC.
Whether or not it does the same for speaker wire, I'm not 100% sure, just figured it couldn't hurt.
It works well in a bachelor pad. Did I mention the babes love it?

 

[highfigh]

I like it because it looks purddy.

I've associated it with the different twist rates in CAT 5 & CAT 6.

The benefit Is that the twists in the wire cancels the magnetic coupling, EMI/EMC.
Whether or not it does the same for speaker wire, I'm not 100% sure, just figured it couldn't hurt.
It works well in a bachelor pad. Did I mention the babes love it?

You mean that the twist cancels common mode interference on the two conductors of the pair- using different rates for each pair avoids mutual inductance coupling in all pairs.

Babes love it? If I had a dollar for every time I got lucky just because of the way my cabling looks, I'd have, well, um, er,...a dollar.

The only times I have really heard any problems with speaker wiring being close to anything else was on a 70V system where that had been run parallel & close to an input signal cable. If the volume was turned up to a certain point, it made a loud snapping sound.

I have never heard anyone say twist rate in speaker wire matters and personally, I think they do it so it's a neater, more controllable cable when it has a jacket on it because the individual conductors aren't fused together. Look at Belden's 'Banana' cabling- it's a pair of RG6Q and a pair of Cat5e, twisted and fused to eliminate the jacket used on similar products like Honeywell's Genesis bundled cabling. Run it, peel it, strip it and terminate it.

 

[ifsixwasnin9]

Your cords and speaker wire are only as good as your amp and components circuitry/internal wiring. Internal circuitry doesn't contain silver plating or low gauge wire, just a lot of fairly thin copper. My Sansui AU-517 contains 20 ga. copper wire connecting the inputs and outputs to the internal amp components. You can't improve on the sound/signal by connecting your audio components with large, complex-designed cables, etc. You may want your cables/wire to be shielded.