On 27/12/17 01:24, Roger Hayter wrote:
Dave Plowman (News) wrote:

In article ,
Tim Streater wrote:
An 8ohm speaker is 6-7 ohms dc resistance. A metre of 1mm^2 cable is
44mohm, so 2.5 metres is 0.11ohms. So no detectable difference on the
sound whatsoever.

The resistance is not what's being discussed. What's the impedance at
say 5kHz?

Impedance of the cable when being driven by a 0.1 ohm or so source?
Irrelevant.

Are you sure that the effect on the source impedance that the speaker
sees cannot be significantly affected by a comparable series resistance?
What about the story of speaker damping?

no story.
one of the reasons a Vox AC30, beloved of Brian may, sounds the way it
does is that it has an output impedance of around 80 ohms...

Marshall top is around 8...