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Commercial Audio Series Mixer-Amplifi ers
Operation Manual page 9
2 Setup
2.3 Choose Input Wire and Connectors
Crown recommends using pre-built or professionally wired, bal-
anced line (two-conductor plus shield), 22-24 gauge cables and
connectors. Unbalanced line may also be used but may result in
noise over long cable runs.
The 135MA and 160MA have two types of input connectors:
Phoenix-type and RCA.
• Mic/Line Connector (CH1): 5-pin Phoenix-type, balanced,
pins 3, 4 and 5 (Figure 2.3).
• Dual RCA Input Connector (other channels): For stereo
music signals, unbalanced, summed together, two connectors per
input (Figure 2.4).
Figure 2.3 Mic/Line Connector
Figure 2.4 Dual RCA Input Connectors
To stereo
line-level
source
UNBALANCED
SUM
PRIORITY
+
–
+
–
T
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mi
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o
r lin
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