Crown cma-1 Manuel De Montage

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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. 
 
 
 
Specifications: 
 
Output Power: (20Hz-20kHz): 
 
3 Channel Mode: 
3x100W @ 8 ohms 
.1% THD 
 
4 Channel Mode: 
2x50W   @ 4 ohms 
.05% THD 
 
 
2x100W @ 8 ohms 
.1% THD 
 
5 Channel Mode: 
4x50W   @ 4 ohms 
.05% THD 
 
 
1x100W @ 8 ohms 
.1% THD 
 
 
 
 Rated Typical 
Frequency Response 
20Hz-20kHz at 1 watt: 
+/- 1dB 
+/- .5dB 
THD at 50W  
.05% 
.04% 
         at 100W (Bridged) 
.1% 
.08% 
S/N Ratio:   
90dB 
100dB 
Damping Factor 
 50Hz-1kHz: 
50 
100 
Input Sensitivity: 
.775V 
Input Impedance: 
>10K ohm 
Supply Voltage: 
12-14 VDC 
Power Consumption: 
73 amps DC max. 
 
 
10-40 amps DC nominal 
Size: 
 
16”L x 14-1/2”W x 3-5/8”H 
Weight:  
20 
lbs. 
 
 
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