Amazon.com: Conwork 8-Pack Neutrik Speakon Compatible Female Jack Panel Mount Socket Connector - Audio Speaker Jack Twist Lock 4 Pole Square - for NL2FC, NL4MP, NL4MPR, NL4FC, NL4FX, NLT4X, NL4 Series : Electronics
Hosa GSK-116 1/4" TS to Neutrik speakON Speaker Adaptor Cable, 16 AWG x 2 OFC
Amazon.com: Speakon Connector, VONOTO 4Pack Neutrik Speakon Compatible Male Jack Mount Connector - Audio Speaker Jack Twist Lock 4 Pole Adapter- for NL2FC, NL4MP, NL4MPR, NL4FC, NL4FX, NLT4X, NL4 Series : Electronics
Amazon.com: Female Speakon, Ancable 2-Pack 4 Pole SpeakOn Speaker Adapter Jack, Replacement Solder Type : Electronics
Neutrik NL4FX 4-Pole speakON Cable Connector, Dark Grey Bushing