Anyone read the recent Stereophile article on cables?

I'm intrigued... I just might give it a try. Here are my initial impressions/findings.

--I would choose a cable that is easy to work with. Soldering resistors to tiny wires can be quite a challenge, as can soldering tiny wires to interconnect ends.

--I'm a bit suspect about computing the intrinsic impedance of interconnects simply from the geometry of the cables. I have some nice cables that consist of teflon-coated silver wires twisted together--I don't think it's easy to calculate the impedance of those.

--However, I looked at three websites: Nordost, Alphacore, and Audioquest. Only Nordost gave an indication of cable impedance. On their Red Dawn interconnect cable, they give the capacitance per foot and inductance per foot. I used those values and the second formula in the Stereophile article and calculated a characteristic impedance Zc= 122 Ohms. (Understand, I have not particular bias for Red Dawn cable... I've never owned it and have no idea how easy it is to work with).

Okay, now I'm getting enthused about this.

Cant you test impedence with a simple voltage meter? I thought there was a specific setting just for that. You then touch each end with the two cables and it tells you the impedence.

The "nominal" or "characteristic" impedance of a cable will vary with frequency. This is a VERY different measurement than "series resistance" that one could measure with a multimeter.

Taking "worthwhile" measurements on cables requires some expensive equipment i.e. a "TDR" ( time domain reflectometer ), a quality signal generator, a spectrum analyzer, etc... While there are TONS of companies / individuals that have the necessary gear to do this, i guess that nobody has ever REALLY taken the time to do such testing. According to "theory", the difference in interconnects / loudspeaker cables should not be noticeable under any "normal" listening conditions with "well designed" gear. Then again, i know that Frank Van Alstine has demonstrated that some gear is HIGHLY susceptible to cable changes. He considers this to be a case of "poor design" on the engineers' part.

If you remember, there was a time when "theory" was that the Earth was flat while being the center of the Universe. Maybe we are on the verge of a new "breakthrough" since some of these "up and comers" seem to have a slightly more open mind and are willing to do their own homework / research instead of quoting "book text" to us. So as not to completely offend the "old schooler's", i have to add that we now have FAR greater test equipment and technology today than we have ever had in the past. As such, we SHOULD be able to test, measure and explain more than we could in the past.

Ray Kimber has the necessary equipment, does a LOT of testing on cables and knows his theory ( as far as i'm concerned ). Let's see if we can get him to join in on this one and see what he thinks. Sean
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