User manual DLS CA12

[. . . ] Check power lead, ground and connections at the amplifier using a multi meter. Check the voltage with a multi meter. Installation Before you begin the install Before you begin you need to read the manual, to have some tools, cables and other material available. There is one such list of material on the following page. Amplifier protection fuse blows at low volume: One or more speaker cables are shorted. [. . . ] Fuse value 60 A if you use a AWG5 cable. For RCA cable signal input: Connect the radio power antenna lead = remote turn on/off from the car stereo to the amplifier remote connection. You can either use the built in remote cable in the RCA cable itself or use a separate cable. Sometimes a small disturbance may enter the amplifier coming from the remote voltage , through the built in remote wire and into the RCA cable. Thus we recommend to use a separate remote wire and run the RCA lead separate from remote wire, power cables and speaker cables. You can either use a crimp fork terminal or insert the cable directly into the amplifier terminal. If there is no remote voltage available from the stereo, you must connect to the ignition key through the radio or any accessories fuse. For High Level input: We recommend you to connect the remote wire as described above. The amplifier will be turned on/ turned off by the high level input voltage. This is done when the Hi level/Low level switch is set to Hi level position. There is a small disadvantage that this function gives soft turn on operation but some plop sound when switching off. You do not have to connect any remote voltage when using Hi level input. DLS DLS FH 1B fuse holder Connect the battery cable to the +12 Volt on the amplifier. If you want to improve the power capacity you can add a Power capacitor of 1 Farad in parallel with the DC input. Be sure to use a rubber grommet or a plastic insulating tube where the cable passes the firewall or other places where it can easily be jammed. fuse value for different cable sizes: 6 mm2 (9 AWG) :25 A 16 mm2 (5AWG) :60 A 33 mm2 (2AWG) :150 A 10 mm2 (7AWG) :40 A 21 mm2 (4AWG) :100 A 42 mm2 (1AWG) :200 +12V REM GND Ground Terminal ( GND ) Connect to a good chassis ground. The ground connection should be clean, unpainted metal to provide a good electrical connection. Use a wire brush, a scraper or a piece of an abrasive sheet to clean the metal. Protect with silicon grease or by paint applied afterwards. +12V REM GND Power Light / Protect light The power light (green ) comes on when the amplifier is turned on. Power (Green) The protect light ( red ) comes on when the amplifier shuts down from overheating or short circuit. Protect (Red) Fuses Use only 30 ampere ATC blade type fuses. 4 30A CA12 Input and controls Input Wiring Inputs may be low level from the RCA output of the car stereo or high level from the car stereo speaker output. Low level = RCA is to prefer for the best sound quality. [. . . ] The cone should move outwards when the wire touches the battery, and inwards when the battery is removed. If it is the other way around, the speaker has been connected backwards and it must be removed and connected correctly. If your system also has a subwoofer connected through a passive 6 or 12 dB crossover, try to connect this with various polarity and judge what sounds best. [. . . ]