Hosa NL2FX Neutrik Connector, 2-pole speakON Current Rating 40 a continuous, 50 a audio signal with 50% duty cycle Only 3 parts, easy to assemble Easy and extremely precise locking system "quick lock" 1 piece Strain relief, chuck for 6 to 10 mm Cable O.D Matches with 4-pole chassis connector as well and makes contact with +1/-1