NL4FC Type SpeakON ConnectorThe Speakon adapter complies with industry standards with a durable plastic housing. It works with NL4 and NL2 series connections like NL4FC,NL4FX,NLT4X,NL4MP,NL4MPR,NL2FC,ect. Rated Operating CurrentThe Speak-On connector operates up to a current rating of 30A rms. It connects cables from 6 mm to 15 mm OD.10 to 16 AWG cable. The Speakon adapter is capable of carrying huge amounts of current to be translated into audio. Reliable Design for Safe UseOxygen-free clips are excellent for noise protection, stable transmission, and anti-interference. Screw the wire in without soldering it. The high-impact plastic material works perfectly for flame retardant, non-slip and durable use. Reliable Quick Lock SystemDesigned with extremely precise and reliable twist lock lock system, "Quick Lock" is more user-friendly. The screw termination avoids the risk of cable tearing. No need to worry about sound interruption, static electricity, or loss during an important gig. Ideal for Indoor or Outdoor ConnectionIt is commonly used for amplifiers, speakers, consoles, mixing equipment with port NL4M.Il can be connected to 2 or 4 conductor wire of different lengths to meet your performance needs.