One way to make expensive speaker cables!

[ThorstenL]

Konnichiwa,

Originally posted by SY
Waitaminit, a few posts back, you scorned DA as irrelevant, now you're citing it?

I did not dismiss DA as irelevant. I dd however say that with respect to the audible effects raised by applying a static field ("Bias") have nothing to do with Dielectric Absorbtion, as they do not effect it.

I would have thought to someone who is diligent about upholding the orthodoxy the implications would be blindingly obvious. Clearly not.

Here is why:

No matter how far you move the base-line the field generated by signal will overlay this and the same dielectric memory will apply (give or take a very small small shift) no matter how far the baseline is moved, as long as our dielectric does not break down.

Hence biasing the dielectric does not improve it's inherent DA in any significant way.

The best way to deal with DA in cables would be to define a current interface terminated in zero ohm load, where there is no voltage there is no DA.

Sayonara

[SY]

I frankly don't understand at all what you're saying. You're using familiar terms in unfamiliar ways and unfamiliar terms in ways I can't penetrate. So I'll have to let this one lay where it is. When you (or anyone else) have got real data showing some sort of effect on audio signals by applying a DC field across the dielectric, by whatever mechanism, I'll be interested in seeing it.

[fdegrove]

Hi,

In the first paragraph of this webpage you'll find the actaul issue numbers of the L'Audiophile series where Mr. P. Johannet (Head of department and engineer for the French national electricity company) writes about his findings.

Whatever measurements were taken they are 100% useless, no X-Y axis anywhere and so on and so forth, yet I'd thought I'd post this nonetheless for those mastering the language and/or in posession of these issues.

Cheers,

[rdf]

Since no one else brought it up, I'll mention microphonics probably aren't a significant factor in any percieved audible difference wrought by biasing cables. Condensor mics have been running +48 VDC on the primary signal conductors at much lower audio audio levels for generations now. The phenomena is well understood and factored into the design of any decent mic cable.

[haldor]

Phantom power (48v) on a good cable doesn't make any audible difference. Phantom power will make a flaky cables real obvious however (crackles, pops etc).

[Peter Daniel]

I thought you might like this

[rdf]

Beautifiul workmanship, but what the heck's going on in there?

[SY]

The switches should provide weeks of entertainment.

[Peter Daniel]

Originally posted by rdf
Beautifiul workmanship, but what the heck's going on in there?

It's taken from a German magazine, so I don't kow what they write about it. From a picture it looks like it's switchable series inductor, series resistor and Zobel. Very nicely implemented.

[Swedish Chef]

The switches should provide weeks of entertainment.