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CDi Series Power Amplifiers
Operation Manual
page 7
Figure 2.3 Input Connector Phoenix Wiring,
Bal anced (Top) and Unbalanced (Bottom)
2.4 Choose Input Wire
and Connectors
Crown recommends using pre-built or professionally wired
balanced line (two-conductor plus shield), 22-24 gauge
cables and connectors. At the amplifier inputs, use
Phoe nix-style connectors (see Figure 2.3).
Unbalanced lines may be used, but may result in hum or
RF noise over long cable runs.
NOTE: Custom wiring should only be performed by
qualified personnel.
2 Setup (continued)
BALANCED LINES
UNBALANCED LINES
INPUT
SOURCE
SOURCE
SOURCE
SOURCE
SHIELD
SHIELD
SHIELD
SHIELD
INPUT
Figure 2.4 Barrier Strip Output Wiring
2.5 Choose Output Wire and Connectors
Crown recommends using pre-built or professionally
wired, high-quality, two-conductor, heavy gauge
speaker wire and connectors. You can use spade lugs
or bare wire for your output connectors (Figure 2.4). To
prevent the possibility of short-circuits, wrap or
other wise insulate exposed loudspeaker cable
connectors.
Using the guidelines below, select the appropriate size
of wire based on the distance from amplifier to
speaker.
Distance Wire Size
up to 25 ft. 16 AWG
26-40 ft. 14 AWG
41-60 ft. 12 AWG
61-100 ft. 10 AWG
101-150 ft. 8 AWG
151-250 ft. 6 AWG
CAUTION: Never use shielded cable for output
wiring.