User manual INFINITY BASSLINK LC

[. . . ] BassLink is designed to work with your vehicle's other speakers to reproduce frequencies below 100Hz. Moreover, depending on orientation and mounting location, BassLink may be "in phase" or "out of phase" with those speakers. The resulting conditions, known as constructive and destructive interference, also play a role in shaping the total frequency response of your system. Fortunately, BassLink has controls to optimize both of these conditions and their adjustment is explained later in the manual. CHOOSING A MOUNTING LOCATION Choose a mounting location that doesn't interfere with cargo, fold-down rear seats, or the trunk lid. [. . . ] Any combination of line-level and speaker-level inputs may be used to provide nonfading bass when connected to a head unit with four outputs. BassLink audio connections for a head unit with two line-level or subwoofer (RCA) outputs. To help you plan your installation, we included five system applications in Figures 6 through 10 on pages 3 through 5. For more system ideas, see your authorized Infinity car audio dealer. Note: The applications show the remote SUB LEVEL control which installs under the dashboard for easy in-car bass level adjustments (see page 7). 3 APPLICATIONS (CONTINUED) Figure 7. BassLink audio connections for a head unit equipped with four line-level (RCA) outputs. BassLink audio connections for a head unit equipped with two line-level (RCA) outputs and two speaker-level outputs. FRONT FRONT R REAR AUTO TURN ON OFF AUTO R REAR AUTO TURN ON OFF AUTO PHASE 0 180 PHASE 0 180 REAR L L RIGHT + LEFT + RIGHT + LEFT + REMOTE GAIN CONTROL RIGHT + REAR REMOTE GAIN CONTROL UNIVERSAL INTERFACE FRONT UNIVERSAL INTERFACE FRONT LEFT + RIGHT + LEFT + RR LR RF LF Line-Level Outputs (on Source Unit) Sub Level Control BassLink (right side) RF LF Line-Level Outputs (on Source Unit) VIOLET VIOLET/BLACK Sub Level Control GREEN/BLACK GREEN BassLink (right side) Sub Level Control FRONT R REAR AUTO TURN ON OFF AUTO FUSE20A PHASE 0 180 RR LR Speaker Wires (spliced) FRONT R REAR AUTO TURN ON OFF AUTO L POWER RIGHT + REAR REMOTE GAIN CONTROL GND REM +BATT UNIVERSAL INTERFACE FRONT LEFT + RIGHT + LEFT + SERVO Sub Level Control FUSE20A PHASE 0 180 L POWER RIGHT + REAR REMOTE GAIN CONTROL GND REM +BATT UNIVERSAL INTERFACE FRONT LEFT + RIGHT + LEFT + SERVO LF Speaker RF Speaker LF Speaker RF Speaker + RCA Stereo Cables (not supplied) + + RCA Stereo Cables (not supplied) + + Source Unit + + Splices (not supplied) Source Unit Splices (not supplied) + LR Speaker RR Speaker LR Speaker RR Speaker 4 APPLICATIONS (CONTINUED) Figure 9. BassLink audio connections for a head unit equipped with four speaker-level outputs. BassLink audio connections for a head unit equipped with two speaker-level outputs. 5 CONTROLS AND FUNCTIONS BassLink provides several controls and indicators that simplify sonic integration with virtually any vehicle's unique acoustic properties. They are located on the front and side panels, as shown in Figures 11 and 12. BassLink controls on right-side panel. TUNING BASSLINK 1. Unplug the RJ11 cable that connects the remote level control to BassLink. Make sure the head unit is off and its volume control is set to minimum. On BassLink's front panel, initially set all controls to their midpoint positions, as shown in Figure 11. On BassLink's side panel, initially set PHASE to 0 as shown in Figure 12. Turn on the head unit and play a favorite music track that has substantial bass. Set the head unit's volume control to 75 percent of the total output (approximately 3 o'clock on rotary controls). Adjust the GAIN control clockwise until the SERVO LED (on BassLink's side panel) begins to flash with each bass note but doesn't stay lit continuously. Listen to your system, making a mental note of the amount of upper bass being reproduced. Switch the PHASE control to 180 and listen again for upper bass content. There may be more upper bass, less upper bass, or no change at all. The position that provides the most upper bass is correct, but choose either setting according to your taste. [. . . ] IN-DASH MOUNTING Disassemble the Sub Level Control by removing the two Phillips-head screws on the front panel, rear panel and on top. Remove the Sub Level Control's bottom and side panels. Slide the Sub Level Control's PC board forward to release the RJ11 connector from the back panel and remove the board along with the potentiometer, knob and connector as a single assembly. Under-dash mounting of the Sub Level Control. [. . . ]