User manual DLS RA10

[. . . ] Contents Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amplifier installation kit. . . . . . . . . . . . . . . . Routing Wires. . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Be sure to use a rubber grommet or a plastic insulating tube where the cable passes the firewall or other places when it can easily be jammed. Use ty-wraps to secure to existing cables in the engine compartment. 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. Use a lock washer or two to secure contact. Protect with silicon grease or by paint applied afterwards. For High Level input: Set the input selector switch to position "High level". We recommend you to connect the remote wire as described above. The amplifier will produce soft on / soft off operation this way. If you use a remote wire, set the switch "High level auto start" to position OUT. In the case that there is no remote voltage available from the car stereo, or you want to simplify the installation, the amplifier can be turned on/ turned off by the high level input voltage. This is done when the "High level auto start" switch is set to IN - position. Connect with ring terminal to chassis ground Fuses on amplifier Use only four 30 ampere ATC blade type fuses. 30 A Power Light / Protect light Power (Green) The power light (green ) comes on when the amplifier is turned on. The protect light ( red ) comes on when the amplifier shuts down from overheating, DC-offset or a short circuit ( speaker failure) Protect (Red) 4 Input and controls RA10 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. Low level input Use a pair of shielded stereo audio cables with RCA type jack. Most trunk-mount amplifiers need a 20 feet RCA cable ( appr 5 ­ 6 meters). Most under the seat installations require 12 feet ( 2 ­ 3 meters) RCA cables. Avoid placing the RCA cable close to speaker cables, power cables and remote control cable. Set the input selector switch to position "Low level". High / Low level input switch To ensure best possible performance from the amplifier a switch is installed to select between High and Low input. When using High Level input: Push in the button to position "High Level" When using Low level input: Push out the button to position "Low Level" Hi level auto start switch To ensure best possible performance from the amplifier when used with high level input a switch is installed to select between Automatic amplifier start and remote wire start. When using High Level input with automatic start: Push the button to position IN When using High level input with remote wire start: Push out the button to position OUT NOTE!Some head units use BTL output IC:s that have a constant 6-12 Volt + on the speaker terminal, also when shut off (the Power LED indicator lights constantly even when the head unit is off). In this case you have to use a separate remote wire connected to the REMOTE-terminal instead. High Level Input Connect left and right speaker wires coming from the car stereo to the high level input as shown. [. . . ] Check quality of earth strap connection from battery negative terminal to chassis. Disconnect signal cables from amplifier to see if noise disappears. Test this by laying a new cable over the seats and reconnecting to the amplifier. If the noise does not return, reroute original cable away from source of interference. [. . . ]