(2) Two Original Neutrik NL4MPR-ST Female 4 Pin SpeakON Connectors- Square Configuration Locking w/ Screw Terminals (2 Pack) Brand New Genuine Neutrik NL4MP-ST 4-Pole Speakon Panel Mount Receptacle with Screw Terminals. No Soldering Required. 4-Pole Speakon Receptacle with Screw Terminals 4 pole chassis connector, black D-size flange, countersunk thru holes, screw termination. This chassis connector is not airtight. The state-of-the-art chassis connector for loudspeaker / amplifier applications. They feature a unique locking system, robust plastic housing and high current silver plated contacts.