Neutrik BNC connector Plug, straight 75 Ω NBNC 75 BFG 7 1 pc(s) NBNC75BFG7 Information Guide

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Positive signal on speaker pin "+" produces positive wave-
form from driver (moves cone outwardly)

"+" = In phase (high) "-" = Ground (out of phase, low) 
Lower numbers for lower frequencies.

one NL4MP socket
left channel pins 1+/1-
right channel pins 2+/2-

three NL4MP sockets
"A" socket:
left channel pins 1+/1-
"B" socket:
right channel pins 1+/1-

"M" socket:
left channel pins 1+/1-
right channel pins 2+/2-

one NL4MP socket
low frequency pins 1+/1-
high frequency pins 2+/2-

one NL8MPR socket
low frequency pins 1+/1-
low mid frequency pins 2+/2-
high mid frequency pins 3+/3-
high frequency pins 4+/4-

NL4FC on amplifier end, four conductor
cable splits into two pairs with NL4FX on
each end

a two-conductor cable for each channel 
with NL4FX on both ends

a special two-conductor cable, on both
ends wired to pin 1+/2+ of NL4FX

a four-conductor cable on both ends
wired to pins 1+/1-, 2+/2- of NL4FX

an eight-conductor cable wired on both
ends to pins 1+/1-, 2+/2-, 3+/3-, 4+/4-
of NL8FC

one NL4MP per speaker
left speaker pins 1+/1-
right speaker pins 2+/2-

NL4MP pins 1+ to speaker coil "+"
NL4MP pins 1- and 2+ to speaker coil "-"

NL4MP pin 1+ to speaker coil "+"
NL4MP pins 1- and 2+ to speaker coil "-"

one NL4MP socket
low frequency pins 1+/1-
high frequency pins 2+/2-

one NL8MPR socket
low frequency pins 1+/1-
low mid frequency pins 2+/2-
high mid frequency pins 3+/3-
high frequency pins 4+/4-

    -  2 channel wiring

   - Mono briged wiring