John Phillips wrote:

On 2006-09-22, Eeyore wrote:
John Phillips wrote:

There are demonstrable differences in frequency response between different
cables in an amp-cable-speaker system. There's even a peer-reviewed
JAES paper which shows this. And you don't have to invoke any of the
mystic technical explanations of certain cable manufacturers - it's down
to fully accepted basic physics.

It's fundamentally down to cable resistance. Which in turn is down to the
cross-sectional area. The brand of cable makes no difference.

Certainly excessive resistance in a cable interacts with the speaker's
frequency-dependent impedance to colour the sound.

No question about it !


So you do have
to have low (enough) resistance. No dependence on brand as you say -
just plain geometry. Large (enough) cross sectional area is the key.

I agree.


However the inductance of a cable does start to hurt the frequency
response a bit above 5 kHz or so, so you have to pay attention to
inductance as well. Fortunately that's also dependent only on geometry.
Closely spaced pairs do well in this respect.

Correct. Construction style is an issue potentially at the higher frequencies.
Closely spaced conductors have lower inductance.


The cable's capacitance is rarely an issue unless the amplifier is
unstable into capacitive loads.

Which it shouldn't be if properly designed !


That would be a design defect in my
book but at least one well-known line of amplifiers I know does have
this defect.

Hmmmmmm......

Graham