Filter
Top Products
Section 8 Signal Connections
CAUTION: In spite of the listings below, check the input panel labeling to verify proper
connections because of possible design differences or production changes.
8.1 Audio Input Connectors - Unpowered Loudspeakers
8.1.1 Neutrik® NL and Cannon AP® Connectors
The input connector on the loudspeaker will be one of following types with the pin
connections as listed.
NOTE: Ensure that the connection polarity is correct. To do this, connect with the "+"
terminal on the loudspeaker to the like terminal on the amplifier, normally labeled: "+",
positive, or hot. Similarly connect the "-" terminal on the loudspeaker to the like terminal
on the amplifier, normally labeled, "-", negative, or ground.
NL8
Tri-amplified
Pin 1– No connection
or LF1 negative
Pin 1+ No connection
or LF1 positive
Pin 2–
LF negative
or LF2 negative
Pin 2+ LF
positive
or LF2 positive
Pin 3– MF negative
Pin 3+
MF positive
Pin 4– HF negative
Pin 4+ HF positive
NL4
Full Range:
Pin 1- Negative
Pin 1+ Positive
Pin 2- No connection
Pin 2+ No connection
NL4
Bi-amplified:
Pin 1- LF or LF/MF negative
Pin 1+ LF or LF/MF positive
Pin 2-
HF or MF/HF negative
Pin 2+
HF or MF/HF positive
AP4
Single-amplified
Pin 1 Negative
Pin 2 Positive
Pin 3 No connection
Pin 4 No connection
AP4
Bi-amplified
Pin 1 LF negative
Pin 2 LF positive
Pin 3
HF negative
Pin 4
HF
positive
NL4 MQ
LF Systems
L-Pin 1– Driver 1 negative
L-Pin 1+ Driver 1 positive
L-Pin 2– Driver 2 negative
L-Pin 2+ Driver 2 positive
R-Pin 1– Driver 3 negative
R-Pin 1+ Driver 3 positive
R-Pin 2– Driver 4 negative
R-Pin 2+ Driver 4 positive
NL4
Single-amplified Subwoofers
Pin 1- Driver negative
Pin 1+ Driver positive
Pin 2-
Loop through
Pin 2+
Loop through
NL4/AP4
Dual-amplifier Subwoofers
Pin 1-/1 Driver 1 negative
Pin 1+/2 Driver 1 positive
Pin 2-/3 Driver 2 negative
Pin 2+/4 Driver 2 positive
Except LA118z, LA128z, LA400,
SBX220, DCS2, FR250z
pin 2– = negative
pin 2+ = positive
pins 1–/+ = loop through.
L–Pin = Left NL4; R–Pin = Right NL4
3 Drivers: 1-3 = top to bottom
4 Drivers: 1- 4 = top to bottom
9
1
2
3
4
2+
1+
2–
1–
Neutrik® NL4
AP4
Cable Connector Views From Wiring Side
Neutrik® NL8
4+
3–
4–
1+
3+
2–
1–
2+