"René" wrote in message
news:dJo5b.342490$o%2.157128@sccrnsc02...
Please allow me to introduce (yet) another mechanism of distortion:

Speaker wires can carry substantial AC currents, which in turn
generate measurable magnetic fields. As the "+" and "-" wires are
usually positioned side by side, some mechanical forces are working on
them. The plastic (?) isolator material is somewhat elastic, therefor
allowing a minimum of relative movement.

This effect is not trivial - with a shorted length of cable and a DC
current of a few 10's of amps - the motion can actually be felt!

With speakers dipping to one ohm i.e. Apogees driven by the larger Krells
surely this would already have been an area of concern?

This in turn allows the wires to move respective to one another, and
by doing so, dissipate a measure of energy.

This obviously leads to a degree of distortion of the signal arriving
at the speaker.

To come to the point: I do not worry at all about the above effect.

If as you surmise this leads to a degree of distortion then you should be
worried if this is in fact the case.

Still I would suspect that this effect is notably stronger (and
perhaps even *measurable*!) than esoteric effects relating to HI-end
mains cable, or "played-in" interlinks with designated in and outputs.
It amazes me that this rather obvious effect seems not be discussed in
hi -end circles. (or is it?)

A *true* High ender is henceforth expected to use loudspeaker wiring
with spreaders that keeps the conductors well apart lest he will not
be taken seriously.

Cogan-Hall loudspeaker cable construction was of parallel copper tube
conductors with spreaders approx. every three inches.

To come to the final point (finally): why are very subtle mechanisms
of distortion so magnified in the various discussions - and an obvious
mechanism like described above is scarcely heard off?

Because this is a High End news group where subtle distortions are hopefully
considered important.
I'm sure some cable manufacturer somewhere has already described this effect
in verbose prose already. Wow its too big to ignore - cables actually
moving!

Disclaimer: if somebody makes money out of this idea - I like to have
a fair sha-)

Ok do some serious testing then market a speaker cable that is 'motion' free
(take that in its literal sense) then laugh all the way to the bank

;-) Mike

--
- René