Doug Sax on wire
"Scott Dorsey" wrote in message
...
Eeyore wrote:
Scott Dorsey wrote:
Well, I have heard differences between wires,
That weren't speaker cables or high capacitance interconnects ?
Well, in some cases they were very long microphone cables with ribbon
mike sources, where the cable reactance WAS becoming a problem.
But in other cases I have heard weirdness that I cannot explain. I can
tell the difference between an 18ga solid core and an 18ga stranded
speaker cable. Makes no sense at all, but it was there.
I can believe that this might be true in a specific situation where all of
the relevant details are not necessarily knowable. In general, no.
I can believe someone might hear a difference between a non-copper cable
like the silver cable, and I can believe it might be due to rectification
effects. I know that I can hear a difference between copper-clad-steel
RG-174 and similar copper cable. I am pretty sure that is due to junction
issues.
For people who don't carry a RG cable characteristics table around in their
heads, RG 174 is micro coax. The center conductor is about 24 gauge. DCR
of pure copper 24 gauge is about 2.5 ohms per 100 feet. It makes pretty
crappy speaker wire, but tell that to Radio Shack!. ;-)
IME the DCR of copper-clad wire is about 4 times that of solid copper, so
now we're talking 10 ohms per 100 feet. IOW if you're driving a 110 ohm load
with a low impedance source, there's about 1 dB of loss per 100 feet. You'll
easily hear that in a close comparison.
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