CMA-1 Installation Instructions 1
PLEASE NOTE: installation. Read the enclosed warranty statement before Installation of the CMA-l is complex and should not be attempted by anyone without the proper tools or knowledge. This amplifier is intended for state-of-the-art mobile fidelity and requires stateof-the-art installation methods for full benefits. **CAUTION** Because this amplifier can draw extremely large current from the battery, the standard automobile charging system may not be sufficient.
Fig. 1 Fuse-Size Nomograph 14 1/2" 13 5/8" .275 DIA. TYP.
**Caution** It is very important to install a 60-amp fuse in the +12VDC power wire at the battery. This fuse prevents fires caused by wiring shorts to the vehicle chassis due to improper installation or unforeseen accidents. As in any professional installation, fusing the speaker lines is highly recommended to protect the speakers. Refer to Figure 1 to determine proper speaker-fuse values. If speaker cables must be spliced to shorten or lengthen them, the splices must be mechanically and electrically sound.
_ + 60-A Fuse CAUTION: THE USE OF WIRE SMALLER THAN #8 GUAGE COULD DEGRADE AMPLIFIER PERFORMANCE AND CREATE A FIRE HAZARD _ + CMA-1 Fig. 3 Power-Wiring Connections 3 4 } 5 CMA-1 Green Wire CONNECT GREEN REMOTE WIRE TO: Fuse Box Terminal Controlled By Key or Ignition or Tuner/Tape Deck 12V Terminal Fig.
POWER WIRING: (refer to Figure 3) 1. Before beginning installation, disconnect the Positive (+) battery power cable. Do not reconnect the power cable until installation is complete. 2. Using only the minimum size #8 stranded cable (#6 recommended) with a terminal on the battery end, connect the CMA-1 terminal marked “-“ to the negative (-) terminal of the battery. Do not splice the cable. Connecting this cable anywhere other than the battery is not acceptable (i.e.
MULTI-CHANNEL OPTIONS The CMA-1 has a switch-selectable multi channel format offering the following choices: 3 Channel: 3x100 W 4 Channel: 2x100 W plus 2x50 W 5 Channel: 1x100 W plus 4x50 W This unusual flexibility allows for 2-channel plus sub woofer, as well as other variations for custom installations. NOTE: The CMA-1 inputs are high-impedance line-level inputs. Speaker outputs from the car radio should NOT be wired into this amplifier.
INPUTS SPEAKER OUTPUTS REMOTE 4 3 } 5 CMA-1 WHITE CABLES To CH5 Source (Subwoofer) To CH1 Source (Left Front) 5 4 3 1 BLK CH1- 2 To CH2 Source (Right Front) YEL/RED CH5- BLK/WHT CH1+ 1 WHT/RED CH2+ To CH4 Source (Right Rear) 5 2 3 To CH3 Source (Left Rear) RED/WHT CH3+ Fig. 5 5-Channel Connections } 4 3 4 WHT CH2- CMA-1 5 CAUTION: Read instruction manual before operating this switch. Improper installation could damage vehicle and amplifier. Fig.
5-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 5 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 4. Connect CH5 signal (Subwoofer) to whit input cable 5. 2. Set the amplifier switch to 5 CH as in Figure 6.
INPUTS SPEAKER OUTPUTS REMOTE 4 3 } 5 CMA-1 WHITE CABLES To CH5 Source (Right Rear) To CH1 Source (Left Front) YEL/RED CH4- 5 BLK/WHT CH1+ 1 4 To CH2 Source (Right Front) WHT/RED CH2+ 3 To CH3 Source (Left Rear) 1 BLK CH1- 2 5 Not Connected use wire nut BLU/RED CH4+ 2 3 WHT CH2RED/WHT CH3+ RED N/C Cut and Tape Fig. 7 4-Channel Connections } 4 3 CMA-1 5 CAUTION: Read instruction manual before operating this switch. Improper installation could damage vehicle and amplifier. Fig.
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.
INPUTS SPEAKER OUTPUTS REMOTE 4 3 } 5 CMA-1 WHITE CABLES To CH3 Source (Subwoofer) To CH1 Source (Left ) YEL/RED CH3- 5 BLK/WHT CH1+ 1 2 4 Not Connected use wire nut 3 To CH2 Source (Right) 5 BLK 1 N/C Cut and Tape WHT/RED CH1-+ Not Connected use wire nut WHT N/C Cut and Tape BLU/RED CH3+ 2 3 RED/WHT CH2+ RED N/C Cut and Tape Fig. 9 3-Channel Connections } 4 3 CMA-1 5 CAUTION: Read instruction manual before operating this switch.
3-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 9 for the following connections: Connect CH 1 signal (left) to white input cable 1. Connect CH2 signal (right) to white input cable 2. Connect CH3 signal (Subwoofer) to white input cable 5. NOTE: White input cables 2 and 4 are not used.
OPERATION: 1. After all connections are made, double check all connections to make sure they are mechanically and electrically sound. Verify correct polarity of all cables. 2. Check that there are no shorts to the vehicle chassis. 3. Check that the CMA-1 input and output cables are routed separate from each other. 4. Connect the positive battery-cable terminal to the battery. This terminal should already have the CMA-1 positive cable attached to it. 5. The CMA-2 has no level controls to preset.
7. If the ignition system uses a distributor with points, check the capacitor on the distributor and also the capacitor on the coil. 8. Try re-routing the input and output cables. 9. Check for a bad alternator. 10. Make sure all power-cable connections are tight and secure. 11. Re-route the power cables. Service Policies: Due to the sophisticated circuitry of the CMA-1, only qualified, fully trained technicians should be allowed to service it.
