Crown CT 475 Setup, CT Power Amplifiers, Operation Manual, page, Choose Input Wire, Connectors

CT Power Amplifiers

4 Setup

4.4 Choose Input Wire	4.5 Choose Output Wire and
and Connectors	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.

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.

Figure 4.4.1 Figure 4.4.2

Operation Manual page 7