Up to 37 A rms current rating Unique Neutrik locking bushing and strain relief for cable diameters 10 mm to 16 mm IEC 61984, UL 1977 and CSA C22.2 No.182.3 certified Superior NEUTRIK quality standard, extremely robust and reliable Easy to assemble because the strain relief locks with the insert mechanically and aligns with the housing Easy and reliable twist lock system NL4FXX-W-L (2) Two Original NEUTRIK NL4FXX-W-L Speakon Cable Connector For Large Wires 10mm to 16mm Brand New Genuine Neutrik Speakon NL4FXX-W-L - Speaker connectors - Speakon (4 pole) Cable End 4 pole speakON cable connector, screw terminal assembly, chuck type strain relief for cable diameters 10 to 16 mm speakON connectors are the industry-standard for loudspeaker connections. This product series offers extremely reliable and robust cable connectors with a proven twist lock system. speakON cable connectors feature solid contacts with screw-type terminals including a stranded wire protection