Crown Audio CT875 8-Channel Rackmount Power Amplifier (75W/Channel @ 8 Ohms) - Manual (Page 6)

Operation Manual
CT Power Amplifiers
page 6
4 Setup
4.4 Choose Input Wire
and Connectors
Crown recommends using pre-built or
professionally wired balanced line (two-
conductor plus shield). Balanced wiring provides
better rejection of unwanted noise and hum but
unbalanced line may also be used. For more
information, refer to the Crown Amplifier
Application Guide, available online at www.
crownaudio.com.
Use 3-pin Phoenix-type cable ends at the amp
input connectors.
Figure 4.4.1 shows connector pin assignments
for balanced wiring and figure 4.4.2 shows
connector pin assignments for unbalanced wiring.
NOTE: Custom wiring should only be
performed by qualified personnel. Class 2
wiring is required.
Figure 4.4.1 Figure 4.4.2
4.5 Choose Output Wire and
Con nectors
Crown recommends using professionally
constructed, high quality, two-conductor,
heavy gauge speaker wire and connectors.
Use 2-pin Phoenix-type connectors
(Included with the amp).
Suggested below are guidelines to select the
appropriate size of wire based on the distance
from amplifier to speaker. Check with local
code as this may vary.
Distance Wire Size
up to 25 ft. (7.6m) 16 AWG
26-40 ft. (7.9-12.2m) 14 AWG
CAUTION: Never use shielded cable for
output wiring.
CAUTION: Never connect the speaker
return to the chassis of the amplifier,
or damage to the amplifier may result.
CAUTION: Output of amplifier channels
cannot be bridged. This may damage
the amplifier.