User manual JBSYSTEMS LIGHT C3-1800 V1.3

[. . . ] Active crossover: 90-250Hz selectable crossover point Filters on satellite outputs can be switched on/off Built-in SUB BASS processor Limiters can be switched on/off Sub out phase inverter Soft starts Very efficient cooling DC fault protection High temperature protection Overload and short circuit protections Balanced XLR inputs 3 Speakon® outputs: 2x Satellites + 1x Sub out. To prevent fire or shock hazard, do not expose this appliance to rain or moisture. To avoid condensation to be formed inside, allow the unit to adapt to the surrounding temperatures when bringing it into a warm room after transport. Condense sometimes prevents the unit from working at full performance or may even cause damages. [. . . ] Will affect its performance and may even damage the unit. the unit can be mounted in 19-inch racks. Attach the unit using the 4 screw holes on the front panel. Be sure to use screws of the appropriate size. (screws not provided) Take care to minimize shocks and vibrations during transport. When installed in a booth or flight case, please make sure to have good ventilation to improve heat evacuation of the unit. To avoid condensation to be formed inside, allow the unit to adapt to the surrounding temperatures when bringing it into a warm room after transport. Condense sometimes prevents the unit from working at full performance. CLEANING THE APPLIANCE: Clean by wiping with a polished cloth slightly dipped with water. Do not use volatile liquids such as benzene or thinner which will damage the unit. Be sure to turn off the unit before you make changes to the wiring. for the signal inputs we recommend using good quality signal cables to ensure excellent audio quality. For example use JB cables with order codes: 7-0061 (XLR/XLR L=1m) or 7-0063 (XLR/XLR L=5m). For the speakers you must use the Speakon® compatible outputs. Suitable cables are for example JB order codes: 2-0505 (L=5m) or 2-0510 (L=10m). The picture shows one of the possible setups with the C3-1800 amplifier. You can use these controls to set the maximum sound level of your setup: Turn both controls on the amplifier (1) to the left. Put on some music on and make sure the VU meters on your mixer are at 0dB. (from time to time the red zone is lit) Set the Master output from your mixer to maximum. Open the Gain controls from the amplifier (1) until the maximum desired sound level is reached. Make sure nobody can reach the Gain controls of the amplifier. You have just set the maximum level the DJ is able to produce. [. . . ] SUBWOOFER OUTPUT: use this Speakon® compatible connector to connect your subwoofer cabinet. Refer to chapter "connections" to learn which cables are suitable. SATELLITE OUTPUTS: use these Speakon® compatible connectors to connect your mid/high satellite cabinets. Refer to chapter "connections" to learn which cables are suitable. [. . . ]