Jim Lesurf wrote:

This does not, of course, mean that speaker cables can never make any
audible difference. Indeed, there are situations where there seem good
reasons to think it will.

Just that the evidence indicates that people often think a change of cable
made such a difference, when it probably didn't. Generally too many other
mechanisms for producing a perceived 'difference' to tell why from the
kinds of poorly done 'comparisons' people often use as a basis for what
they say.

BTW I'm currently working on comparing loudspeaker cables. Investigating
out one or two aspects I can't recall being dealt with before in any
detail. All being well, results will appear first in HFN in coming months.
:-)

Oh they CAN and DO.

For all the usual reasons like DCR, L and C. Togther with the amp's output
impedance and the loudspeaker, these form a complex filter. I'd not be
surprised to see +/- 1dB variations.

Studio Sound did this of course about 25 years ago under controlled (i.e. non
'hi-fi') conditions and found exactly the same.

Their preferred cable was IIRC UK T&E 4mm2 mains wiring cable. Back then
heavier 'grades' were very rare.

Yup, the more copper, the better.

The only other answer is of course, powered speakers where the speaker wire is
say 200mm long.

Graham