Infinity 4SC User's Manual
Contents
1. Connect the speakers to the FRONT and REAR screw terminals observing proper polarity Figure 3 INPUT CONNECTIONS You must connect full range signal to all four inputs on BassLink II if you are using the 4sc Do not connect a subwoofer output to any of the inputs if you are using the 4sc Connect the input signal wires according to Figures 3a through 3d If your source unit provides only speaker level output wires connect those wires to the Universal Interface connections as shown in Figures 3a or 3b If your source unit provides line level outputs with RCA type connectors connect the signal cables to the FRONT and REAR LINE LEVEL inputs as shown in Figure 3c or 3d Note If your source unit provides two line level outputs and two speaker level outputs you may connect the line level output to the appropriate front or rear RCA type input and the speaker level outputs to the other front or rear Universal Interface connector BassLink II Remote Level Control Remote Level Control 4 Channel Line Level Outputs from Source Unit 3d 3c 3a 3b LF LR RR RF Source Unit Remote Level Control Remote Level Control Remote Level Control 2 Channel Line Level Outputs from Source Unit 2 Channel Speaker Outputs from Source Unit 4 Channel Speaker Outputs from Source Unit Rear Front Figure 3 4 CONTROLS AND FUNCTIONS REMOTE CONTROL SUB LEVEL Use this control to2. 17 and the music selections that follow Tracks 18 20 to check your work ADDING THE SOUND FROM THE REAR SPEAKERS With music playing turn the Rear Gain control clockwise until sound from the rear speakers is clearly audible but not so loud that it makes the music seem to come from the back of the car BassLink 4sc 7 TROUBLESHOOTING PROBLEM BassLink II and 4sc Power LEDs are not lit CAUSES and SOLUTIONS 1 Poor or improper power connection Check power ground and remote connections Check speaker level input for proper connections see No Output 2 Blown or improperly installed fuse Check main battery fuse and replace if necessary Check fuse on BassLink II and 4sc PROBLEM 4sc Power LED not lit but BassLink II Power LED is CAUSES and SOLUTIONS 1 Improper power connection between BassLink 4sc and BassLink II Check Power Connector see Installation Figure 2 2 Improper signal connection between BassLink 4sc and BassLink II Check gray ribbon signal cable connection to the 4sc see Installation Figure 2 3 Blown or improperly installed BassLink 4sc fuse Check fuse and replace if necessary PROBLEM BassLink 4sc Power LED lit but no sound from one or all speakers CAUSES and SOLUTIONS 1 Improper input signal connections Check all input connections on BassLink II and source unit 2 Damaged speaker wire or improper speaker connections Check speakers and wiring change if
3. 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 Figure 4 REMOTE LEVEL controls Figure 5 BassLink 4sc controls Figure 6 BassLink II controls on the front panel Figure 7 BassLink 4sc 5 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 1 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 2 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 pa
4. Speaker Location car size doors dash kick panel small 2 2 or 3 3 mid size 1 or 2 2 or 3 3 large 1 2 2 or 3 Using the Phantom Center Setup CD included with your BassLink 4sc you ll listen to some instructions a spoken setup track and several music selections to determine the best adjustment for your system The first four tracks are spoken tracks with Track 3 being the most important of those tracks Portions of Track 3 have been recorded through the equivalent of the Phantom Center circuit Listen to Track 3 Spoken Setup Track and choose the switch position that provides the best illusion of a person speaking halfway between the front speakers Track 3 0 00 0 10 Switch in the Off position 0 11 0 21 Switch position 1 0 22 0 33 Switch position 2 0 34 0 47 Switch position 3 0 48 0 60 Rapid switching between the three positions 6 Tracks 5 through 16 are music tracks There are three excerpts of songs and each excerpt is recorded four times once with no processing switch in the Off position once through switch position 1 once through switch position 2 and once through switch position 3 Using the music tracks choose the switch position that distributes the sound best between the right and left speakers You can use the following list of tracks as a guide TUNING BASSLINK II AND 4SC CONTINUED PHANTOM CENTER SETUP CD Track 1 Introduction Track 2 Instructions for Track 3 Track 3 Spoken Setup T
5. BassLink 4sc BassLink 4sc i n s t r u c t i o n s 2 INTRODUCTION THANK YOU for choosing the Infinity BassLink 4sc amplifier expansion module for use with BassLink II To ensure optimum performance we strongly recommend that installation be entrusted to a qualified professional Although these instructions explain how to install the BassLink 4sc in a general sense they do not show the specific installation methods for your particular vehicle If you feel you do not have the necessary tools or experience do not attempt the installation yourself rather ask your authorized Infinity car audio dealer about professional installation options Remember to keep this manual and your sales receipt in a safe place for future reference HEARING WARNING Playing loud music in a vehicle can permanently damage your hearing as well as hinder your ability to hear traffic We recommend using low volume levels while driving Infinity accepts no liability for hearing loss bodily injury or property damage resulting from the use or misuse of this product PARTS LIST 4sc amplifier Mounting screws 8 M3 x 14mm Spare fuse 30A Owner s manual Infinity sticker Warranty card BASSLINK 4SC INSTALLATION This owner s manual assumes BassLink II is installed in your vehicle If you are installing both units simultaneously refer to the BassLink II owner s manual for instructions regardi
6. adjust the amount of bass to suit your preference PHANTOM CENTER LEFT Slide the switch to this position to provide a phantom center for front left seating position OFF Slide the switch to this position to turn off Phantom Center processing RIGHT Slide the switch to this position to provide a phantom center for front right seating position Note Once you have chosen the best Phantom Center switch position and made the necessary adjustments to the Front Gain and Rear Gain controls and set the Subwoofer Level control and Phase switch you won t need to make any further adjustments on the BassLink II or the 4sc BASSLINK 4sc PHANTOM CENTER Use this switch to select the proper adjustment of the Phantom Center circuit according to your car and your preference FRONT REAR GAIN Use these to adjust the levels of the front and rear speakers POWER LED This indicator will glow blue when BassLink II and 4sc are operational BASSLINK II POWER LED This indicator will glow blue when BassLink II is operational GAIN Control Use this control to adjust the relative volume loudness of BassLink II with respect to the other speakers in the vehicle CROSSOVER Use this control to adjust the amount of high frequency information present in BassLink II s output BASS BOOST Use this control to correct any perceived peak or dip in the bass response typically around 40Hz in most vehicles Set the control to any value between
7. g that audio signals are not present before shutting down SPECIFICATIONS BassLink 4sc Amplifier Power 35W x 4 channels at 4 ohms 50W x 4 channels at 2 ohms Frequency Response 90Hz to 47kHz Fuse 30A Max Current Draw 26A Idle Current Draw lt 800mA Input Sensitivity 100mV to 6V line level input 1V to 16V universal interface Crossover Frequency Fixed 80Hz high pass Crossover Slope 12dB per octave Infinity Systems 250 Crossways Park Drive Woodbury NY 11797 USA 516 674 4463 FAX 516 682 3523 www infinitysystems com 2005 Harman International Industries Incorporated All rights reserved Part No BASSLINK4SCOM10 05 Declaration of Conformity We Harman Consumer Group International 2 route de Tours 72500 Chateau du Loir France declare in own responsibility that the product described in this owner s manual is in compliance with technical standards EN 55013 2001 A1 2003 EN 55020 2002 A1 2003 Klaus Lebherz Harman Consumer Group International Chateau du Loir France 10 05 A valid serial number is required for warranty coverage This product is designed for mobile applications and is not intended for connection to the mains Features specifications and appearance are subject to change without notice Infinity Harman International and BassLink are trademarks of Harman International Industries Incorporated registered in the United States and or other countries
8. m 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 10 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 Additionally some factory installed audio systems use extensive and non defeatable equalization and channel delay which may diminish the effect of the Phantom Center circuit The Phantom Center circuit provides four tuning selections Off 1 2 and 3 The three settings process the audio signal differently and provide optimization for several different car sizes and front speaker mounting locations The chart below indicates switch positions that will probably sound best for a variety of car sizes and speaker locations but there is no correct setting You should choose the one you like best Note The Phantom Center circuit affects the midrange speaker only in switch position 1 but may affect the separate tweeter as well in switch positions 2 and 3 depending on the tweeter s cutoff frequency If you have separate tweeters mounted in the tops of the doors or in the dashboard and the chart indicates two possible switch positions the second position may be the better choice Midrange
9. necessary 3 Improper signal connections between BassLink 4sc and BassLink II Check gray ribbon signal cable connection to 4sc see Installation Figure 2 PROBLEM Music sounds distorted CAUSES and SOLUTIONS 1 Gain levels are set too high or head unit volume is too high Reduce volume and or Gain Levels 2 Tone Controls on head unit misadjusted Check controls and adjust as necessary PROBLEM No output from BassLink 4sc and BassLink II CAUSES and SOLUTIONS Input connections are improperly wired Verify all connections see Figures 4 and 5 PROBLEM No output from BassLink II when head unit fader control is set to front or rear in a 4 channel connection CAUSE and SOLUTION Input connections are improperly wired Verify all connections see Connections on page 3 PROBLEM BassLink II turns on before head unit is completely on and produces a thump sound CAUSE and SOLUTION For speaker level connections head unit is producing a false turn on signal On BassLink II s side panel slide AUTO TURN ON to OFF It will be necessary to connect the Remote lead to a switched ignition voltage source 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 sensin
10. nel to 1 4 volume Only the front speakers should be playing 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 3 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 4 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 5 Turn the Sub Level control on the remote level control to its maximum output setting fully clockwise 6 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 7 While sitting in the driver s seat listen to your system making a mental note of the amount of upper bass being reproduced 8 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 9 Adjust the Crossover control until you hear only low frequency information coming fro
11. ng the mounting of BassLink II and the REMOTE LEVEL control and to this owner s manual for tuning DESCRIPTION The BassLink 4sc is a four channel plug and play amplifier designed to make upgrading your system easy The BassLink 4sc is designed to slide into an available slot in the BassLink II The BassLink 4sc also includes a Phantom Center circuit which creates the illusion of a center channel without requiring a center speaker INSTALLATION 1 Disconnect BassLink II s power connection from the battery 2 Remove the wiring cover from BassLink II 3 Remove but do not discard the eight screws that hold the AMPLIFIER DOCK cover panel in place Figure 1 4 Remove and discard the screw that attaches the two wiring harnesses and connectors to the dock cover 5 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 6 Insert the amplifier and secure it using the eight screws that were removed in Step 3 Figure 2 Extra screws have been included with the 4sc 7 Upgrade the fuse at the vehicle s battery installed with BassLink II to a 50A fuse 8 Reconnect battery power lead Figure 1 Figure 2 BassLink 4sc 3 CONNECTIONS Note In order for the Phantom Center circuit to operate properly the speakers and input wires MUST be connected in proper polarity SPEAKER CONNECTIONS
12. rack Track 4 Instructions for Music Tracks Track 5 Lonely Savior no processing Track 6 Lonely Savior switch position 1 Track 7 Lonely Savior switch position 2 Track 8 Lonely Savior switch position 3 Track 9 Another Time Another Place no processing Track 10 Another Time Another Place switch position 1 Track 11 Another Time Another Place switch position 2 Track 12 Another Time Another Place switch position 3 Track 13 Cinderella s Revelation no processing Track 14 Cinderella s Revelation switch position 1 Track 15 Cinderella s Revelation switch position 2 Track 16 Cinderella s Revelation switch position 3 Track 17 Conclusion Track 18 Lonely Savior Ken Birmingham Track 19 Another Time Another Place Mike Christian Track 20 Cinderella s Revelation Joe Chinnici SETTING THE PHANTOM CENTER CIRCUIT 1 Before you begin set the Phantom switch on the remote control for the seat in which you are sitting Set the Phantom Center switch on the 4sc in the Off position Turn the Rear Gain control on the 4sc all the way down counter clockwise and make sure no sound is coming from the rear speakers 2 Insert the Phantom Center Setup CD into your CD player 3 Follow the spoken instructions on the setup CD 4 Once you have chosen the switch position you like best using Tracks 1 17 stop the CD and move the Phantom Center switch on the 4sc to the position you have chosen You can use Track
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