Amazon.com: NANYI Speakon to 1/4 Adapter Connector, Upgraded 1/4" Female to NL4FC Male Connectors are for Converting 1/4" Cables to NL4FC Plug for Speaker/Amplifier/Mixer (Speakon to 1/4 Adapter) : Electronics
Amazon.com: Hosa GSK-116 1/4" TS to Neutrik speakON Speaker Adaptor Cable, 16 AWG x 2 OFC : Musical Instruments