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2. Speaker wire - Wikipedia

   en.wikipedia.org/wiki/Speaker_wire

   The resistance of copper 16-gauge or heavier speaker connection cable has no detectable effect in runs of 50 feet (15 meters) or less in standard domestic loudspeaker connections for a typical 8 ohm speaker. For aluminum or copper-clad aluminum wire, 14-gauge or heavier cable is needed to support this claim due to higher resistivity.

3. Magnet wire - Wikipedia

   en.wikipedia.org/wiki/Magnet_wire

   Magnet wire or enameled wire is a copper or aluminium wire coated with a very thin layer of insulation. It is used in the construction of transformers , inductors , motors , generators, speakers , hard disk head actuators , electromagnets , electric guitar pickups, and other applications that require tight coils of insulated wire.

4. Wire gauge - Wikipedia

   en.wikipedia.org/wiki/Wire_gauge

   Each notch is stamped with a number, and the wire or sheet, which just fits a given notch, is stated to be of, say, No. 10, 11, 12, etc., of the wire gauge. The circular forms of wire gauge measurement devices are the most popular, and are generally 3 + 3 ⁄ 4 inches (95 mm) in diameter, with thirty-six notches; many have the decimal ...

5. Litz wire - Wikipedia

   en.wikipedia.org/wiki/Litz_wire

   Litz wire is used for the helix and variometer in both helix houses. It consists of 9 × 5 × 5 × 27 (totaling 6075) strands of #36 AWG (0.127 mm (0.0050 in) diameter) magnet wire and multiple layers of cotton, hemp, and plastic insulation, in a cable ¾ inch (19 mm) in diameter, totaling 151,875 circular mils of copper. [10]

6. Voice coil - Wikipedia

   en.wikipedia.org/wiki/Voice_coil

   A 7.5 cm diameter dual voice coil from a subwoofer driver. A voice coil (consisting of a former, collar, and winding) is the coil of wire attached to the apex of a loudspeaker cone. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it. The term is also used for voice coil linear motors ...

7. Wire - Wikipedia

   en.wikipedia.org/wiki/Wire

   Sample diameter 40 mm. A wire is a flexible, round, bar of metal . Wire is commonly formed by drawing the metal through a hole in a die or draw plate. Wire gauges come in various standard sizes, as expressed in terms of a gauge number or cross-sectional area . Wires are used to bear mechanical loads, often in the form of wire rope.