Check the listing for details. 20 FT 18 AWG Gauge 9 Conductor Speed Wire Speaker Trailer Copper Stranded Cable. Condition: New. Listed at 25.00 USD. 20 FT 18 AWG Gauge 9 Conductor Speed Wire Speaker Trailer Copper Stranded Cable Brand new 20ft. section of 18 gauge speed wire. This is also referred to as 9 wire because it contains nine 18 gauge wires inside of one larger wire casing. This is very high quality wire that comes in a 20 ft section. This wire makes installations much easier because you can run one wire instead of 9! This can be used for wiring 4 speakers to an amplifier with ease and also many other applications. The 9th wire is blue and can be used as a remote turn on wire as well! The overall diameter of this cable is approximately 1/2" and it features a super flexible insulated outer housing to help prevent from interference. This wire can even be separated to use in single conductor applications! The inside 18 gauge wires are all color coded so that you can match them up to make your installation easier. The wire colors are: White, White with Black Stripe, Green, Green with Black Stripe, Purple, Purple with Black Stripe, Gray, Gray with Black Stripe, and Blue. This is great wire that you will not be disappointed with! Product Features • TOTAL OF 9, 18 GAUGE STRANDED COPPER WIRE• USE FOR 4 PAIR OF SPEAKERS, PLUS 1 REMOTE TURN-ON• DIAMETER OF CABLE = 1/2 INCH APPROX• HEAVY AND FLEXIBLE INSULATION JACKET• EASY INSTALLATION RUN 1 WIRE NOT 9,• MAKES QUICK EASY AND CLEAN INSTALLATIONS• WIRE CAN BE SEPARATED TO USE IN SINGLE CONDUCTOR APPLICATIONS• WIRE IS 100% BRAND NEW CUT FROM MASTER SPOOL