 Neutrik NL4FX Neutrik 4 pole cable connector with chuck and dark grey bushing. SPX Series. This second generation of Speakon connectors features a higher current rating for the operation of high power speakers and amplifiers carrying more than 1000 Watts. Only 3 parts, easy to assemble. Rated current per contact: 40 Amp rms continuous Rated current per contact: 50 Amp audio signal, duty cycle 50 % Dielectric strength: 4kV peak Rated voltage: 250V (Insulation) Cable O.D: 7 - 14.5mm Wire Size: 4mm Wiring: screw type terminals or soldering Locking device: Quick Lock (latch) | 
