Infinity Speaker System BassLink User Manual

BassLink T  
instructions  
Thank you  
for choosing the Infinity BassLink T. BassLink T has been designed  
to provide the kind of high-performance low-frequency reproduction that used to require  
big, clumsy enclosures, large amplifiers and complicated installation.To ensure maximum  
performance, we strongly recommend that installation be entrusted to a qualified professional.  
Although these instructions explain how to install the BassLinkT 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.  
 
POWER CONNECTIONS  
MOUNTING BASSLINK T (CONTINUED)  
Connect power to BassLink T, as shown in  
Figure 7. Also observe these installation tips:  
Figure 7. Power connections for BassLink T.  
ROUTING THE WIRES  
All signal and power wires should be routed  
through the opening provided at the rear of the  
connection panel. On the rear of BasslinkT are  
two channels extending from the opening — one  
horizontal, and one vertical — that may be used for  
routing those wires to the vehicle.  
BassLink T  
(Control Panel)  
Use at least #10 AWG wire for the +BATT  
(+12 Vdc) and GND (ground) connections. If  
needed, use at least a #20 AWG wire for the  
REM (remote) connection.  
LINE LEVEL  
INPUT  
HIGH LEVEL  
INPUT  
POWER  
+
+
L
R
REMOTE  
LEVEL  
CONTROL  
L
R
+BATT REM  
GND  
FUSE  
25A  
Route all power wires through a grommet in  
the vehicles firewall. If a factory grommet is  
unavailable, install one.  
Depending on installation requirements, all, or  
some, of the wires may be routed straight down  
along the vertical channel to the floor and hidden  
under the carpeting, and/or across the horizontal  
channel toward the side and hidden behind the  
vehicles trim panels.  
Connect a short GND wire from BassLink T  
to the nearest bare metal surface. For a  
good connection, scrape away paint from  
the metal surface and use a screw with a  
lock (star) washer.  
Figure 5. Channels for wiring.  
Install a fuse holder with a 25 A fuse within  
18" of the batterys positive (+) terminal (see  
Figure 7).  
Fuse 25 A  
The REM connection requires +5 to +12 Vdc  
signal to turn on BassLink T. Most head units  
with preamp outputs provide this remote  
voltage signal. For speaker-level applications,  
a remote connection is preferred but not  
required, since BassLink Ts AutoTurn-On  
feature will sense voltage on the speaker  
wires to automatically turn on BassLink T.  
ADDITIONAL MOUNTING FEET  
If your particular application inhibits the ability to  
secure the lower portion of BassLink T, please use  
the supplied mounting feet.They slide into the  
channels on the bottom of the unit and snap in  
place.This will give you the ability to secure  
BassLink T to the floor of your vehicle.  
IMPORTANT: To enable BassLinkTs Auto  
Turn-On feature, set the AUTOTURN-ON  
switch to the AUTO position (see Figure 13  
on page 7).  
Figure 6. BassLink T installation with optional feet.  
3
 
APPLICATIONS  
BassLinkT is equipped with two line-level (RCA)  
inputs and two speaker-level inputs.  
To help you plan your installation, we have  
included two system applications in Figures 8  
and 9 on pages 4 and 5. For more system ideas,  
see your authorized Infinity car audio dealer.  
Figure 8. BassLinkT audio connections for a head  
unit with two line-level or subwoofer (RCA) outputs.  
AUTO  
TURN ON  
LINE LEVEL  
INPUT  
HIGH LEVEL  
INPUT  
POWER  
BASS  
BOOST  
GAIN CROSSOVER  
+
+
OFF  
AUTO  
L
R
PHASE  
REMOTE  
LEVEL  
CONTROL  
L
R
+BATT REM  
GND  
FUSE  
25A  
0°  
180°  
4
 
APPLICATIONS (CONTINUED)  
Figure 9. BassLinkT audio connections for a head  
unit equipped with two speaker-level outputs.  
AUTO  
TURN ON  
LINE LEVEL  
INPUT  
HIGH LEVEL  
INPUT  
POWER  
BASS  
BOOST  
GAIN CROSSOVER  
+
+
OFF  
AUTO  
L
R
PHASE  
REMOTE  
LEVEL  
CONTROL  
L
R
+BATT REM  
GND  
FUSE  
25A  
0°  
180°  
5
 
CONNECTING THE REMOTE LEVEL CONTROL  
TO BASSLINK T  
INSTALLATION  
The Remote Level Control may be mounted  
under the dash or may be dismantled and  
mounted in the dash for a factory appearance.  
IN-DASH MOUNTING  
Choose a mounting location that allows easy  
access to the control, and provides 1-3/4"  
clearance behind the mounting surface. Drill  
a 9/32" hole in the mounting surface. Feed the  
Remote Level Controls potentiometer (with the  
knob removed) through the hole and use the nut  
provided to hold the control in place (Figure 11).  
Route the cable behind the dash or other interior  
panels and under the carpet. Do not route the  
cable outside the vehicle. Connect the RJ11 cable  
between the RJ11 receptacle on the BassLinkT  
and the receptacle on the Remote Level Control  
(Figure 12).  
Disassemble the Remote Level Control by  
removing the two Phillips-head screws on the  
front panel, rear panel and on top. Remove the  
Remote Level Controls bottom and side panels.  
Slide the Remote Level Controls 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  
Select a mounting location that allows easy  
access to the control while driving. Using the  
Remote Level Control as a template, mark and  
drill holes in the mounting surface. Attach the  
Remote Level Control using the mounting screws  
provided (Figure 10).  
Figure 12. Remote Level Control electrical  
connection.  
Figure 11. In-dash mounting of the Remote Level  
Control.  
Figure 10. Under-dash mounting of the Remote  
Level Control.  
LINE LEVEL  
INPUT  
HIGH LEVEL  
INPUT  
POWER  
+
+
L
R
REMOTE  
LEVEL  
CONTROL  
L
R
+BATT REM  
GND  
FUSE  
25A  
BassLink T  
(Control Panel)  
6
 
CONTROLS AND FUNCTIONS  
TUNING BASSLINK T  
BassLink T provides several controls and indica-  
tors that simplify sonic integration with virtually  
any vehicles unique acoustic properties.They are  
located on the top control panel, as shown in  
Figure 13.  
NOTE: Depending on BassLink Ts orientation and  
location in a vehicle, reversing the phase may  
(or may not) increase or decrease the amount  
of perceived upper bass being reproduced.  
1. Unplug the RJ11 cable that connects the  
Remote Level Control to BassLink T.  
8. Adjust the CROSSOVER control clockwise  
or counterclockwise until you hear only low-  
frequency information. For example, you  
should NOT hear any vocals coming from  
BassLinkT when seated in the normal  
listening position.  
2. Make sure the head unit is off and its volume  
control is set to minimum.  
AUTOTURN-ON: For speaker-level connections,  
use this switch to activate (or deactivate)  
BassLink Ts automatic turn-on circuit.  
GAIN Control: Use this control to adjust the  
relative volume (loudness) of BassLink T with  
respect to the other speakers in the vehicle.  
3. On BassLink Ts top panel, initially set all  
controls to their midpoint positions, as shown  
in Figure 13. On BassLink Ts top panel,  
initially set PHASE to 0.°  
9. Adjust the BASS-BOOST control clockwise  
or counterclockwise to suit your taste.  
REMOTE LEVEL CONTROL: Use this RJ11 jack  
to connect the Remote Level Control (see page 6).  
CROSSOVER: Use this control to adjust the  
amount of high-frequency information present in  
BassLink Ts output. A lower value means more of  
the high frequencies are filtered out.  
10. Recheck the PEAK LED to make sure its  
flashing in time with the bass but is not lit  
continuously. If it is lit continuously, adjust  
the GAIN control counterclockwise until the  
PEAK LED only flashes.  
4. Turn on the head unit and play a favorite  
music track that has substantial bass. Set the  
head units volume control to 75 percent of  
the total output (approximately 3 o’clock on  
rotary controls).  
PEAK LED:This indicator glows red when the  
subwoofer is at maximum output. Be sure to  
monitor this indicator during BassLink T setup  
(see Tuning BassLink T). When properly tuned,  
the PEAK LED should light momentarily during  
high-level bass transients. Avoid adjustments  
that cause the PEAK LED to remain lit for  
extended periods.  
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 6dB and +3dB,  
according to your preference.  
11. Reconnect the RJ11 cable between the Remote  
Level Control and BassLink T. You may then  
use the Remote Level Control to adjust the  
level of the bass to suit your taste and/or  
different program material.  
5. Adjust the GAIN control clockwise until the  
PEAK LED (on BassLink Ts top panel) begins  
to flash with each bass note but doesn’t stay  
lit continuously.  
PHASE Control: Use this switch to reverse the  
phase of BassLink Ts output with respect to its  
input. Choose the position (0° or 180°) that  
sounds the best.  
POWER LED:This indicator will glow blue when  
BassLink T is operational.  
6. Listen to your system, making a mental  
note of the amount of upper bass being  
reproduced.  
NOTE: In most cases, the above steps 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 Infinity  
car audio dealer for help in tuning your system.  
7. 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.  
Figure 13. BassLink T control panel.  
AUTO  
TURN ON  
LINE LEVEL  
HIGH LEVEL  
INPUT  
POWER  
INPUT  
BASS  
BOOST  
GAIN CROSSOVER  
PEAK  
+
+
OFF  
AUTO  
L
R
PHASE  
REMOTE  
LEVEL  
CONTROL  
L
R
+BATT REM  
GND  
FUSE  
25A  
0°  
180°  
7
 
TROUBLESHOOTING  
SPECIFICATIONS  
PROBLEM:  
PROBLEM:  
No output from BassLink T when head-unit  
fader control is set to front or rear.  
PROBLEM:  
Amplifier Power:  
250W  
rms  
POWER LED is not lit.  
BassLink T produces a loud humming noise with  
the system OFF when using speaker-level inputs.  
Frequency Response: 20Hz to 120Hz  
CAUSES and SOLUTIONS:  
Fuse:  
30A  
1. Fuse is blown and needs replacement.  
2. Head unit is not functioning properly. Check  
remote voltage, and power, ground or remote  
connections.  
CAUSE and SOLUTION:  
CAUSE and SOLUTIONS:  
Max. Current Draw:  
Idle Current Draw:  
Input Sensitivity:  
26A  
Input connections are improperly wired. Verify  
all connections (see Applications, starting on  
page 4).  
This problem is caused by a feedback loop  
between your speakers and the high-level inputs  
of BassLink T.  
< 800mA  
50mV to 4V  
Line-level input  
Choose one of the following solutions:  
PROBLEM:  
POWER LED is lit but there is no bass.  
PROBLEM:  
1V to 16V  
High-level input  
BassLinkT turns on before head unit is  
completely on and produces a “thump” sound.  
1. Connect a wire from the REMOTE terminal on  
BassLink T to the remote turn-on of your head  
unit or to the vehicles accessory circuit. On the  
control panel, slide the AUTO-ON switch to the  
OFF position.  
Crossover Frequency: 50Hz to 120Hz  
CAUSES and SOLUTIONS:  
1. Inputs are not connected. Check connections.  
2. Head-unit fader control is not set properly.  
Adjust head-unit fader control to feed audio  
signals to BassLink T.  
CAUSE and SOLUTION:  
Crossover Slope:  
Bass Boost:  
12dB per octave  
For speaker-level connections, BassLink T is  
receiving a false turn-on signal. On BassLink Ts  
top panel, slide AUTO TURN-ON to OFF and use  
the Remote (REM) connection.  
6dB to +3dB @ 40Hz  
2. Connect the supplied capacitors between  
each of the speaker outputs of the head unit  
and the speakers positive lead as shown  
in Figure 14. Connect each positive lead of  
BassLink Ts high-level inputs to the head-unit  
side of the capacitors. Use one capacitor per  
speaker input channel.  
Dimensions:  
(L x W x H)  
40-3/8" x 6-7/16" x 14-3/8"  
(1026mm x 164mm x 366mm)  
PROBLEM:  
BassLinkT sounds muddy or distorted.  
PROBLEM:  
BassLink Ts POWER LED remains on after head  
unit is turned off.  
CAUSES and SOLUTIONS:  
1. Gain is set too high and PEAK LED is lit  
constantly. Readjust GAIN control (see  
Tuning BassLink T on page 7).  
2. Bass is set too high. Readjust BASS BOOST  
control (see Tuning BassLink T on page 7).  
3. Head-unit output is distorted or blown. See  
your authorized Infinity car audio dealer.  
CAUSE and SOLUTION:  
Figure 14. Connecting supplied capacitors.  
For speaker-level connections, this is normal  
operation when AUTO TURN-ON is set to ON.  
BassLink T will remain on another 5 to 10 minutes  
after sensing that audio signals are not present  
before shutting down.  
+ Speaker wire  
from head unit  
To + speaker lead  
Capacitor  
Declaration of Conformity  
To + speaker-level  
input on BassLink T  
We, Harman Consumer 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  
EN 55020:2002  
Infinity Systems, 250 Crossways Park Drive, Woodbury, NY 11797 USA  
© 2004 Harman International Industries, Incorporated  
Part No. BASSLINKTOM • 10/04  
Emmanuel Millot  
Harman Consumer International  
Chateau-du-Loir, France 10/04  
 

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