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7.1 Phoenix connector option
The Phoenix connector option is intended for fixed installations. A cable plug is supplied – attached to
the F81’s rear chassis socket.
PC4/2-ST-7.62 connectors are an industry standard. Additional connectors are available through a
variety of distributors worldwide.
Fig 7.1-1 Phoenix PC4 pin-out
(Looking towards rear of loudspeaker)
7.2 Speakon connector option
The Speakon NL4 option is intended for quick deployment applications. The two NL4s are internally
connected. One is used for the input. The other is used as an output for additional (parallel-connected)
F81s.
Note that the F81 uses only two of the four available NL4 pins. Suitable cable connectors include the
industry standard Speakon NL4FC and the Speakon NL2FC (compatible with NL4 chassis connectors for 2-
pin use).
(Original image courtesy Neutrik)
Fig 7.2-1 Your F81’s rear NL4 connectors will accept either NL2 or NL4 connector types
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