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ES 40 USER MANUAL
R
stage accompany
3.3
Loudspeaker Connections
Due to the DDC feature, the ES 40 has 4 output terminals per channel instead of 2. The speakon
connector is wired as follows:
Pin 1+ = "hot" or Signal+
Pin 1- = "cold" or Signal-
Pin 2+ = "DDC hot" or DDC+
Pin 2- = "DDC cold" or DDC-
For optimum performance, the amplifier to loudspeaker connections should be made as shown
in figure 3-2.
The signal+ and DDC+ (Dynamic Damping Control) terminals are linked together at the
SPEAKON NL4FC
2+
2-
1+
Figure 3-2
ES 40 4-terminal loudspeaker connection.
loudspeaker + terminal. The signal- and DDC- terminals are linked at the loudspeaker - terminal.
A maximum damping is obtained with these connections. If your speaker system is not prepared
for a four terminal connection, link the DDC and the signal leads at the input of the enclosure
(see figure 3-3).
SPEAKON NL4FC
2+
2-
1+
Figure 3-3
ES 40 2-terminal loudspeaker connection
1-
1-
1+
1-
NEUTRIK
2+
+
-
+
-
3-5
2-
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