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How To Wire A Speakon Connector

Most professional loudspeaker and amplifier manufacturers have transitioned to the Speakon NL4FC connector for speaker level connections because its locking mechanism makes it safe, reliable, and physically secure.

Most professional loudspeaker and amplifier manufacturers have transitioned to the Speakon NL4FC connector for speaker level connections because its locking mechanism makes it safe, reliable, and physically secure. And because it's a four-conductor connector, it's handy for bi-amping speakers or stereo cabling. Once wired correctly, the connector can't be plugged in backward, causing the type of inverted polarity situations that are common with banana hookups.

  • Slide the bushing (E) and chuck (D) onto the end of the cable as shown below.
  • Strip approximately 3/4-inch of casing from the cable end, and 3/8-inch from the end of each conductor down to bare wire (C).
  • Insert each wire into the top of the appropriate slot of the connector insert (B) as shown below. Use a 1.5-mm Allen wrench or flat blade screwdriver to tighten the side connecting screws. For stereo configurations, connect the positive (+) and negative (–) leads of each wire to the appropriate Channel 1 and Channel 2 connectors. For bridge mono, connect the load across the positive (+) terminals for Channels 1 and 2.
  • Slide the connector insert (B) into the connector housing (A). Make sure that the large notch on the outer edge of the insert lines up with the large groove on the inside of the connector housing. The insert should slide easily through the housing and out the other side until it extends approximately 3/4-inch from the end of the housing. (1.5 mm) Allen wrench or flat blade screwdriver
  • Slide the chuck (D) along the cable and insert it into the housing. Make sure that the large notch on the outer edge of the chuck lines up with the large groove on the inside of the connector housing. The chuck should slide easily into the insert/housing combination until only approximately 3/8-inch of the chuck end extends from the back end of the connector as shown below.
  • Slide the bushing along the cable over the chuck and screw onto the end of the connector combination. Note that the bushing features a special locking construction that will prevent disassembly of the NL4FC connector once this cap is tightened into place.
  • Source: Crown Audio



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