headphones
"gjsmo" wrote in message
...
On Oct 26, 3:58 pm, PStamler wrote:
On Oct 26, 8:24 am, "Arny Krueger" wrote:
"PStamler" wrote in message
...
On Oct 25, 2:40 am, Frank Stearns
wrote:
With speaker efficiency here at the listening levels employed, 22
gauge
wire would
be fine for the speakers purely from a load capacity standpoint. But
there
would be
other potential problems, particularly with R.
No kidding there would, if the 22ga wire was longer than a foot or so.
Its comparatively high resistance forms a voltage divider with the
speaker's load impedance. Since the latter is usually far from flat,
you get a built-in EQ curve following the shape of the speaker's
impedance. Not desirable.
22 gauge wire has a resistance of 16 ohms per thousand feet or 0.016
ohms
per foot. Rule of thumb is that a 1:50 voltage divider can be counted on
to
produce no audible attenuation. If the speaker involved has reasonable
worst case impedance curve variations and a rated impedance (i.e.,
approximate minimum impedance at any normal audio frequency) of 4 ohms,
the
wire could be about 5 feet long with no audible effects. Or, if you will
a
30 inch speaker cable.
Not too far off from my guesstimate of a foot. In any case, running 10
feet of 22ga speaker cable, or 20 feet, is definitely not recommended,
which was the point I was making.
Honestly... does "speaker wire" come in 22ga? or even 20ga?
Usually it's at least 16ga, often 14ga or 12ga.
24 gauge "speaker wire" has been routinely sold by retailers for many years.
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