™
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 vehicle’s 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
vehicle’s 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 battery’s 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 T’s 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 BassLinkT’s 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 Control’s 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 Control’s bottom and side panels.
Slide the Remote 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
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 vehicle’s unique acoustic properties.They are
located on the top control panel, as shown in
Figure 13.
NOTE: Depending on BassLink T’s 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 T’s 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 T’s top panel, initially set all
controls to their midpoint positions, as shown
in Figure 13. On BassLink T’s 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 T’s output. A lower value means more of
the high frequencies are filtered out.
10. Recheck the PEAK LED to make sure it’s
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 unit’s 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 T’s 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 T’s 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 vehicle’s 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 T’s
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 speaker’s positive lead as shown
in Figure 14. Connect each positive lead of
BassLink T’s 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 T’s 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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