[August Karlstrom]

On 2011-07-14 02:06, Audio Empire wrote:
You have to be careful there. If you wire-up a pair of very inefficient
speakers using long runs of 18 gauge wire (or smaller) you will definitely
hear a degradation of sound, but it is not due to the "quality" of the wire,
but rather its size. 14 Ga or larger is the rule of the day for speakers.

In a typical setup even a thinner wire like 2x1.5 mm^2 will suffice. For
instance, if you need two runs of four meter wire and your loudspeaker
impedance do not drop below 7 ohm even a wire as thin as 2x0.5 mm^2 will
suffice. In general, if the resistance of the wire is allowed to be no
higher than one percent of the (minimum) speaker impedance the minimum
cross-sectional area of the wire can be computed as

A = (1.68 * 10e-6 ohm m) * l / R_L

where l is the length of the wire and R_L the minimum impedance of the
speaker.


August