Operation Manual; 4.4 Choose Input Wire ; Wire Size- Page 7

CT Power Amplifiers

page 7

CT Power Amplifiers

Operation Manual

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.

4 Setup

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.