Crown Audio CMA-1 - Manual (Page 11)

11
4-CHANNEL WIRING
The amplifier inputs are white cables. Each cable is marked with a numbered band at the end of the
cable.
1. Refer to Figure 7 for the following connections:
Connect CH 1 signal (left-front) to white input cable 1.
Connect CH2 signal (right-front) to white input cable 2.
Connect CH3 signal (left-rear) to white input cable 3.
Connect CH4 signal (right-rear) to white input cable 5.
NOTE: White input cable 4 is not used. To avoid accidental shorting of this cable to the chassis, and
to reduce noise, use a wire nut to connect the “hot lead” and shield in white cable 4.
2. Set the amplifier switch to 4 CH as in Figure 8. This provides the following output powers:
CH1: 50 W at 4 ohms
CH2: 50 W at 4 ohms
CH3: 100 W at 8 ohms
CH4: 100 W at 8 ohms
(These are minimum recommend loads.)
3. Refer to Figure 7. Connect the speakers as follows. Route the CMA-1 colored output cables
separate from its white input cables to prevent oscillations. Using crimp terminals, connect the
CMA-1 colored cables to the speaker terminals, taking care to observe the cables colors and
polarities noted below:
Blk/Wht:
CH 1 + Left-Front Speaker
Blk: CH 1 -
Wht/Red:
CH 2 + Right-Front Speaker
Wht: CH 2 –
Red/Wht:
CH 3 + Left-Rear Speaker or Left Subwoofer
Grn/Yel: CH 3 +
Blu/Red:
CH 4 + Right–Rear Speaker or Right Subwoofer
Yel/Red: CH 4 -
NOTE: The Red and Green cables are not used. To avoid accidental shorting of these cables, clip
exposed ends back to the insulation, and cover with electrical tape.