It still makes no sense to me. Even though the material is a worse conductor than copper, the run is so short the resistance should be very, very low. Also, the straps I've seen were pretty husky, so even on a poor material, resistance will be proportional to length and inversely proportional to cross section.
I don't have speaker wire - the crossovers on my speakers extend back to the amp, so what do I know?
EDIT: [spelling]
[This message has been edited by charlie (edited March 16, 2003).]
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Charlie