Resistance
Resistance is by far the most important specification of speaker wire. Low-resistance speaker wire allows more of the amplifier's power to energize the loudspeaker's voice coil. The performance of a conductor such as speaker wire is therefore optimised by limiting its length and maximising its cross-sectional area. Depending on the hearing ability of the listener, this resistance begins to have an audible effect when the resistance exceeds 5% of the speaker's impedance.
A speaker wire’s impedance takes into account the wire’s resistance, the wire’s path, and the dielectric properties of local insulators. The latter two factors also determine the wire's frequency response. The lower the impedance of the speaker, the greater a significance the speaker wire's resistance will have.
Where large buildings have long runs of wire to interconnect speakers and amplifiers, a constant voltage speaker system may be used to reduce losses in the wiring.
Read more about this topic: Speaker Wire
Famous quotes containing the word resistance:
“The resistance we make to our passions is due to their weakness, not our strength.”
—François, Duc De La Rochefoucauld (1613–1680)
“Even the most subjected person has moments of rage and resentment so intense that they respond, they act against. There is an inner uprising that leads to rebellion, however short- lived. It may be only momentary but it takes place. That space within oneself where resistance is possible remains.”
—bell hooks (b. c. 1955)
“You may either win your peace or buy it: win it, by resistance to evil; buy it, by compromise with evil.”
—John Ruskin (1819–1900)