Audio2000'S tm ACC31A1-P (2 pc) Speakon Male to 1/4" Jack Connector 2 Piece Package Locking Type 1/4" jack Material: hard plastic 2-Pack Speakon to 1/4 Inch adapters for convenience and savings Easy screw-in set pin feature Many speakers only have speakon inputs with out any 1/4 Inch inputs.  These two adapters overcome that issue.