User manual JBL DA3504

[. . . ] · At the installation site, locate and make a note of all fuel lines, hydraulic brake lines and electrical wiring. Use extreme caution when cutting or drilling in and around these areas. · Check clearances on both sides of a planned mounting surface before drilling any holes or installing any screws. [. . . ] Connect the speakers, observing proper polarity, to the speaker output barrier strip on the amplifier using at least 16G high-quality speaker wire. (Note: The total impedance of the speakers connected to the outputs when the amp is driven in stereo must be at least 2 ohms. ) 2. If you are bridging the amplifier, connect the speaker wires to the terminals marked "bridge" observing proper , polarity. (Note: The total impedance of the speaker system to be connected to the amplifier must be at least 4 ohms in bridge mode. ) 3. If you are running the amp in Tri-Mode (stereo and mono simultaneously to one or two pairs of satellite speakers and a subwoofer), refer to the chart below to determine the capacitor and inductor values you'll need to route bass signals to the woofer, and midrange and high frequencies to the satellite speakers. These passive crossover components will also ensure that the impedance of the speaker system doesn't drop below 2 ohms. FREQUENCY Crossover 75Hz 100Hz 125Hz 150Hz 175Hz 200Hz INDUCTOR 6dB/oct. HP (4 ohm) 530µF 400µF 318µF 265µF 227µF 198µF Mounting the Amplifier The JBL Decade Series amplifiers can be mounted in virtually any location inside the vehicle. However, make sure to keep the amplifier away from heater vents or ducts. At the chosen site, use the amplifier as a mounting template and mark the locations of the four mounting holes. Mount the amplifier and securely tighten the mounting screws. Wiring the Power Connections Refer to diagrams on page 3 for connector locations. For power, remote and speaker wires, strip 1/4" off one end of each jacket to reveal bare wire for insertion into the barrier strip connectors. 2. Connect a black wire (at least 12G for DA4002, 10G for DA6502, DA1002 and DA3504) to the Gnd terminal and connect the other end to the nearest bare-metal chassis component. Then, connect a red wire (at least 12G for DA4002, 10G for DA6502, DA1002 and DA3504) from the vehicle's +12-volt battery terminal to the +Batt terminal on the barrier strip. Finally connect a blue wire (16G) to the Rem terminal on the barrier strip and connect the other end to the Rem output of the source unit. Wiring the Input Connections 1. If you are using conventional RCA input connections and a source unit with output voltage less than 4V, simply plug the RCA plugs into the RCA jacks on the amplifier. If you are connecting the amplifier to a factory-installed source unit, or to a source unit that only has speaker-level outputs, connect the speaker outputs of the source to the speaker input plug on the amp using the connector provided. 4 Observe the following color-codes: Left+: White Left­: White with black stripe Right+: Gray Right­: Gray with black stripe 4. If you are connecting your Decade Series amplifier to a source unit with output voltage higher than 4V, connect the output signal wires of the source unit to the floating ground factory head unit inputs. Because the inputs have an impedance of 100K ohms, this connection will provide the best noise-free performance possible. System Setup and Adjustment Electronic Crossover The electronic crossover(s) in your Decade Series amplifier can be selected as a 12dB/oct. [. . . ] Your local JBL installation specialist is the best person to help with such adjustments. 5 Figure 1 ­ BRIDGED + REM GND(­) BATT(+) FUSE L L SPEAKER INPUT LINE INPUT R + ­ R+ R INPUT LEVEL BASS EQ CROSSOVER ­ 15 15 AMP 1 10 OFF +6dB L LPF FLAT HPF + LEFT ­ ­ RIGHT + POWER SPEAKER OUTPUT Figure 2 Applications For your convenience, we've included several application diagrams to help you plan your own system installation. Figures 1 through 4 show how to configure the Decade Series power amplifiers for stereo, bridged-mono and tri-mode operation. Figure 3 (Note: For simplicity, figures do not show power, remote and input connections. ) Figure 1. [. . . ]