The NL4FXX-W-S-D is a 4-pole speakON cable connector, established as the industry standard for loudspeaker connections. It is engineered for high reliability, featuring a current rating of up to 37 A rms and solid contacts with screw-type terminals compatible with wire sizes from 1.5 to 4 mm². The connector utilizes a robust twist-lock system and a unique chuck-type strain relief that accommodates cable diameters from 6 to 12 mm. Certified to IEC 61984, its ergonomic and easy-to-assemble design makes it an extremely reliable choice for professional audio equipment and loudspeaker systems.