Crown CMA-1 Installation Instructions Manual Download | Manualshive

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3

Fig. 1 Fuse-Size Nomograph

1/2"

.275 DIA. TYP.

8"

15 1/2"

16"

13 5/8"

14 1/2"

Fig 2 CMA-1 Mounting-Hole Locations

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Summary of Contents for CMA-1

Page 1: ...1 CMA 1 Installation Instructions ...

Page 2: ... owner operator should consider installing a higher amperage alternator and a secondary battery Power consumption is 73 amps DC maximum 10 40 amps DC nominal at 12 14 VDC Use only a minimum size of 8 gauge stranded cable 6 recommended between the battery and the CMA l for both positive and negative leads with no splices Thinner cable may overheat and cause a fire Thinner cable also reduces the l2V...

Page 3: ...3 Fig 1 Fuse Size Nomograph 1 2 275 DIA TYP 8 15 1 2 16 13 5 8 14 1 2 Fig 2 CMA 1 Mounting Hole Locations ...

Page 4: ...ssis 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 Simply twisting wires together and wrapping with electrical...

Page 5: ... OF WIRE SMALLER THAN 8 GUAGE COULD DEGRADE AMPLIFIER PERFORMANCE AND CREATE A FIRE HAZARD CMA 1 Fig 4 Remote On Off Wire Connection CMA 1 3 4 5 Fuse Box Terminal Controlled By Key or or Ignition Tuner Tape Deck 12V Terminal Green Wire CONNECT GREEN REMOTE WIRE TO ...

Page 6: ... cable for both the positive and negative connections clearly mark the positive cable to prevent miswiring Improper connection could damage the amplifier battery or electrical system 4 Install the supplied 60 amp fuse in the Positive cable near the battery Failure to install the fuse could result in vehicle fire due to accidental shorting of the power cables REMOTE ON OFF WIRING Refer to Figure 4 ...

Page 7: ...lus 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 When connecting tuner tape deck outputs to the CMA 1 inputs use an appropriate connector or solder the connections and insulate them with electrical tape All connections must be mechanically and ele...

Page 8: ...urce Left Front To CH2 Source Right Front To CH3 Source Left Rear To CH4 Source Right Rear To CH5 Source Subwoofer BLK WHT CH1 BLK CH1 5 2 WHT RED CH2 WHT CH2 RED WHT CH3 RED CH3 GRN CH4 GRN YEL CH4 YEL RED CH5 BLU RED CH5 CMA 1 3 4 5 CAUTION Read instruction manual before operating this switch Improper installation could damage vehicle and amplifier ...

Page 9: ...Figure 6 This provides the following output powers CH1 50 W at 4 ohms CH2 50 W at 4 ohms CH3 50 W at 4 ohms CH4 50 W at 4 ohms CH5 100 W at 8 ohms These are minimum recommend loads 3 Refer to Figure 5 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 speake...

Page 10: ...t To CH2 Source Right Front To CH3 Source Left Rear Not Connected use wire nut To CH5 Source Right Rear BLK WHT CH1 BLK CH1 5 2 WHT RED CH2 WHT CH2 RED WHT CH3 RED N C Cut and Tape GRN YEL CH3 YEL RED CH4 BLU RED CH4 CMA 1 3 4 5 CAUTION Read instruction manual before operating this switch Improper installation could damage vehicle and amplifier GRN N C Cut and Tape ...

Page 11: ...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 ...

Page 12: ...ce Right Not Connected use wire nut To CH3 Source Subwoofer BLK WHT CH1 5 2 WHT RED CH1 RED WHT CH2 RED N C Cut and Tape GRN YEL CH2 YEL RED CH3 BLU RED CH3 CMA 1 3 4 5 CAUTION Read instruction manual before operating this switch Improper installation could damage vehicle and amplifier GRN N C Cut and Tape Not Connected use wire nut BLK N C Cut and Tape WHT N C Cut and Tape ...

Page 13: ... 3 CH as in Figure 10 This provides the following output powers CH1 100 W at 8 ohms CH2 100 W at 8 ohms CH3 100 W at 8 ohms These are minimum recommend loads 3 Refer to Figure 9 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...

Page 14: ...KERS OR SOME SPEAKERS 1 Recheck cable connections and routing according to this instruction sheet 2 Check the fuse in line with the 12VDC power cable If the fuse is blown find and repair the cable short to the vehicle frame Replace the fuse with the same value fuse DISTORDED GRITTY SOUND 1 Turn down the volume of your sound system 2 Turn down the bass of your sound system 3 Turn down the low frequ...

Page 15: ...lified 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 10...

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