User manual DLS RA10

[. . . ] The frequency range is limited to frequencies between 10 Hz and 125 Hz. Installation Before you begin installation 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. Disconnect Battery Before starting the installation, always disconnect the negative terminal of the battery. Amplifier location Important Allow air circulation around the amplifier. The DLS Reference series of amplifiers have a compact design that allows great flexibility in mounting. When you select a location, do remember that the amplifier generates a lot of heat. [. . . ] 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. For High Level input: Set the input selector switch to position "High level". 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 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. You must connect both plus and minus as the inputs are balanced, connecting plus only gives lower level and bad sound quality. High level input socket Green: Left + Black: Left Black: Right Grey: Right + Hi level input plug. Right Left Hi level input socket on amp. Automatic turn on when using high level input. With the "Input selector switch" set to High level and the "High level Auto Start" switch set to IN, the amplifier turns on automatically on high input. You don´t need to connect a separate remote wire from your head unit. If you want to use high level input but use a remote start wire, just set the "High level Auto Start" switch to OUT. 5 RA10 Input Level control The input level control, 8V ­ 0, 5 V, matches the output of your radio to GAIN the input of the amplifier. After installation is complete, make sure the input of the amplifier is turned 8V 0, 5V down all the way ( counterclockwise at 8V ). [. . . ] 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. The phase shift in passive crossovers sometimes makes it necessary to change polarity. + Battery 1, 5 Volt + - NOTE!Tweeters can not be tested this way, double check the connections instead. Professional Tip: Installing in trunk When installing the amplifier in the trunk, run the power wires along the same path as the other vehicle wiring. you will have to remove the door sill trim and the carpet. Professional Tip: Securing wires Use wire ties to bundle together when possible. [. . . ]