User manual JBL JBL630T

[. . . ] · At the installation sites, locate and make a note of all fuel lines, hydraulic lines, vacuum 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. Remember that the screws can extend behind the surface. [. . . ] Using a drill and bit, drill the holes for the mounting screws. Insert the JBL630T in the mounting hole, align the screw holes, insert the screws and then tighten them to hold the JBL630T in place. CHOOSING A MOUNTING LOCATION Choose a mounting location that doesn't interfere with walkways, seats or the operation of steering, control or safety mechanisms. The JBL630T must not interfere with the safe operation of the boat. The best location is usually a vertical wall that separates an under-seat storage compartment from the boat's interior space, as shown in Figure 1. CONNECTIONS About Power and Ground Connections: The red B+ wire and the black ground wire should be connected directly to the battery terminals in your boat. If your boat has a two-battery system, connect the red and black wires to the battery that provides power for your boat's accessories rather than the battery that provides power to start your boat's motor. JBL's JBL630T is designed to shut off if it senses that your battery's voltage has fallen below 10 volts, in order to prevent your battery from becoming fully discharged while you're on the water. Power Connection Connect power, ground and remote turn-on signal to the JBL630T, as shown in Figure 3. Also observe these installation tips: · Use at least #12 AWG wire for the +BATT (+12 Vdc) and GND (ground) connections. Use at least a #20 AWG wire for the REM (remote) connection. The position that provides the most upper bass is correct. Adjust the Crossover control clockwise or counterclockwise until you hear only low-frequency information in the output of the JBL630T. For example, you should NOT hear any vocals coming from the JBL630T when seated in the normal listening position. Adjust the Bass Boost control clockwise to suit your preference. NOTE: In most cases, the steps above will provide satisfactory tuning. However, the actual process may require several readjustments of each control, since the settings will interact with each other. If necessary, consult your authorized JBL car or marine audio dealer for help in tuning your system. NOTE: Depending on the JBL630T's orientation and location in your boat, reversing the phase may (or may not) increase or decrease the amount of upper bass being reproduced. 0° min Phase 180° JBL630T 80 1 2 1 Figure 5. Rubber plug 0° min Gain 120 min max 50 max Crossover Boost Phase 180° JBL630T 80 Power LED: This indicator will glow blue when the JBL630T is operational. Gain Control: Use this control to adjust the volume (loudness) of the JBL630T, compared to the loudness of the other speakers in your boat. Crossover: Use this control to adjust the amount of high-frequency information in the JBL630T's output. [. . . ] Current Draw: 14A · Idle Current Draw: <1. 03A · Input Sensitivity: · Line-Level Input: 100mV to 6V · Speaker-Level Input: 1V to 13V · Crossover Frequency: 50Hz to 100Hz · Crossover Slope: 12dB per octave · Bass Boost: 0dB to +7dB @ 50Hz · Mounting Depth: 7-15/16" (202mm) · Cutout Diameter: 10-1/8" (258mm) · Overall Diameter: 13"/13-1/16" (331mm/332mm) · ISO-8846 Marine-compliant 13" 331mm Power LED is lit but there is no bass. Check remote voltage, and power, ground or remote connections. The JBL630T is designed to shut off if the battery voltage falls below 10V. This is to ensure that your battery isn't completely drained. Check connections. 13-1/16" 332mm JBL630T sounds muddy or distorted. Head-unit fader control Adjust head-unit fader control to is not set properly. [. . . ]