User manual INFINITY BASSLINK 4SC

[. . . ] Slide the 4sc amplifier partially into the opening and connect the wiring harness connectors to the appropriate connectors on the BassLink 4sc's circuit board (Figure 2). Insert the amplifier and secure it using the eight screws that were removed in Step 3 (Figure 2). Upgrade the fuse at the vehicle's battery (installed with BassLink II) to a 50A fuse. Figure 1. Remember to keep this manual and your sales receipt in a safe place for future reference. [. . . ] Set the control to any value between ­6dB and +3dB, according to your preference. PHASE Control: Use this switch to reverse the phase of BassLink II's output with respect to its input. AUTO TURN ON: For speaker-level connections, use this switch to activate (or deactivate) BassLink II's automatic turn-on circuit. SERVO LED:This indicator glows blue when the subwoofer is at maximum excursion and the amplifier is modifying the output to maintain maximum performance. For more information about using the controls, see "Tuning BassLink II and 4sc" on page 5. 4 TUNING BASSLINK II AND 4SC SETTING THE FRONT SPEAKER AND SUBWOOFER LEVELS Note: Refer to page 4, "Controls and Functions, " for the location of controls. Turn on the audio system and verify (using the Balance and Fader controls) that the speakers and input channels are connected properly ­ when the Balance control is turned to the left, only the left speakers should play, and when the control is turned to the right, only the right speakers should play. BassLink II's subwoofer should play regardless of the Fader or Balance control's position. Turn the Rear Gain (located on the 4sc's end panel) and BassLink II's Gain control (located on BassLink II's front panel) all the way down. Turn the Front Gain (located on the 4sc's end panel) to 1/4 volume. Additionally, turn BassLink II's Crossover control and Bass Boost control to their midpoint positions and set BassLink II's phase control to the 0° position. Play a dynamic music track with substantial bass content ­ Track 5 or 9 on the Phantom Center Setup CD is suitable ­ and turn the source unit's volume control to 3/4 volume. Turn the Front Gain control up until you hear slight distortion in the music (fuzzy or crackling sounds). Then reduce the Front Gain control slightly until the distortion is no longer present. Turn the Sub Level control (on the remote level control) to its maximum output setting (fully clockwise). While listening to the same track that you used in step 3, turn BassLink II's Gain control clockwise until the servo light (located on BassLink II's end panel) begins to flash with each bass note but doesn't stay lit continuously. While sitting in the driver's seat, listen to your system, making a mental note of the amount of upper bass being reproduced. Switch the Phase control to the 180° position and listen again for upper bass content. There may be more upper bass, less upper bass or there may be no change. The position that provides the most upper bass is correct, but choose either setting according to your preference. Adjust the Crossover control until you hear only low-frequency information coming from BassLink II's woofer. You should use the highest (clockwise) position possible that doesn't allow any vocal information to be audible from BassLink II's woofer (when you listen in the driver's position). Adjust the Bass Boost control clockwise or counterclockwise to suit your preference. ABOUT THE PHANTOM CENTER CIRCUIT Note: In order for the Phantom Center to work properly, the front speakers MUST be connected in correct polarity. [. . . ] It will be necessary to connect the Remote lead to a switched ignition voltage source. · PROBLEM: Music sounds distorted. Verify all connections (see Figures 4 and 5). · PROBLEM: BassLink II's BassLink 4sc POWER LED remains on after head unit is turned off. CAUSE and SOLUTION: For speaker-level connections, this is normal operation when AUTO TURN ON is set to ON. BassLink II and BassLink 4sc will remain on for another 5 to 10 minutes after sensing that audio signals are not present before shutting down. BassLink 4sc ® 7 Declaration of Conformity A valid serial number is required for warranty coverage. [. . . ]