Cables Are Crazy, what do you think?


I have been in several arguments with my best friends father on the subject of high end audio components and cables. He is a DR. of physics and mathmatics and always takes the stance that cables just transfer information and should show no effect on sound performance. He does stipulate that depending on the material used can change what information is transfered. He is no audiophile and I have tried to sit him down and show him what does happen when you do use different cables but he never seems to make the time to let me prove to him that different cables have different sounds. I know cable make a huge difference in a system, but does any one know how I can verbalize that to a DR. of physics with more intellegence then it just sounds different with different cables?
willypinecrest

Showing 5 responses by shadorne

Don't bother as most people with physics degrees and most engineers do not readily accept that cables can make anything but the very slightest of differences to analog audio signals in a properly designed system. This is not new...just accept it and get on with life. If $1000's spent on cables work for you then enjoy but don't expect many scientists to share your convictions. A typical scientist when faced with a huge difference between one adequate speaker cable and another will simply assume something is wrong with the equipment or its combination rather than attribute significant audio properties to the cable ( you know - amp instability - complex low impedance speaker loads => rightly or wrongly scientists view cables as being passive in analog audio applications).
You will run into many in life that choose to remain ignorant, rather than admit they are wrong.

Exactly my point. Both points of view see the other as ignorant and there is a simple explanation for the divergence.

The scientist likely knows enough basics about analog audio and audio electronic design standards to know that if a change in speaker cable makes a big difference then something is incorrect about the equipment design, quality or choice of equipment. (for instance...coupling a low impedance complex speaker load to an underpowered or unstable amplifier that is struggling to drive the load correctly. A situation where there are likely issues whichever cable is used and with audible differences in distortion that occur due to small variations in music and volume levels)

In the above, the non-scientist quite logically ascribes any observed differences to what has physically been changed - so the "new sound properties" are immediately attributed to the new speaker cable versus the old one. This seems quite sensible unless one is aware that the way equipment performs when connected (consistently or not in response to slight changes) is almost entirely determined by the equipment design/selection rather than something as basic as the wire connection between them. Generally appropriate design and equipment matching will normally minimize wire differences and changes due to slight volume variations to the point of insignificance.

So, as you can see, both points of view are correct depending on "where" you attribute audible differences. One says "Gee my amp and speakers don't work well together - even the slightest change in a wire causes large audible differences". The other says "Gee, WOW, AWESOME this speaker cable is detailed, brighter and has much more PRAT then the my old one.".

Both are right in their own way.
Checkout this study done on two different cables.

I did not check everything but several of the results are exactly what I would have expected based on physics. The zip cord is not as good and one of the wel known disadvantages of thicker wires versus many small wires will indeed be a slight roll off above 15 KHz (skin effect). This appears on the plots. Phase difference will also be expected to be higher due to the wire separation in the zip cord (the wires are close together in the Clarity 7) - again the results look intuitively correct.

Bear in mind that a 9 KHz square wave has frequencies well up into the 100 KHz range (as it is square) - so I am not sure of the relevance of this plot - or the one with resonance.

All in all I woudl support the claims that the Clarity 7 is better than the zipcord - although this is mainly true from 15 Khz to 400 KHz. As for me I can't hear above 15.5 KHz so I am not sure if I shall be switching from my monster cables ( basically zip cord or not different from zip cord ).
I guess my general point was that cables can exhibit differences which can be measured.

Yes and the measurements can be explained by science too. 100% agree.
Actually, I found that plugs make a bigger difference than does the actual cable.

Absolutely agree.

When I put the ear plugs in I can no longer hear my wife screaming at me.