Infinity BassLink+4 User manual

BassLink+4
™
BassLink+4
™
i
n
s
t
r
u
c
t
i
o
n
s

2
INTRODUCTION
THANK YOU for choosing the Infinity BassLink+4™
System Upgrade Solution. BassLink+4 has
been designed to provide the kind of high
performance that used to require big, clumsy
enclosures, large amplifiers and complex
installation. To ensure maximum performance,
we strongly recommend that installation be
entrusted to a qualified professional. Although
these instructions explain how to install the
BassLink+4 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
(1) Powered subwoofer
(2) Mounting feet
(4) 3mm x 18mm Screws to attach
mounting feet to sub
(4) #8 x 1" Screws to attach feet to vehicle
(1) 5m Phone cable
(1) Remote bass level/phantom control
(2) #6 x 3/4" Screw to hold remote control
(2) 5m Speaker input cables
(2) 5m RCA input cables
(1) 35 Amp fuse
(1) 25 Amp fuse
(1) Phantom setup CD
(1) Owner’s manual
(1) Warranty card
CHOOSING A MOUNTING LOCATION
Choose a mounting location that doesn’t interfere
with cargo, fold-down rear seats or the trunk lid.
The best location is usually a corner of the trunk
or cargo area, as shown in Figures 1 and 2.
These locations, in addition to being out of the
way, will provide the best sonic reproduction in
the 60Hz to 100Hz range because the woofer
output will be “corner loaded”against the
vehicle’s walls. In any case, BassLink+4 must not
interfere with the safe operation of the vehicle.
Figure 1. BassLink+4 in a car’s trunk.
Figure 2. BassLink+4 in an SUV’scargo area.
CAUTION: Make sure mounting screws will not
puncture wiring harnesses, brake or fuel lines, or
the vehicle’s fuel tank. Some or all of these may
be located behind or under the mounting surface.
VERTICAL MOUNTING
Position BassLink+4 so that the heatsink is facing
down and the bottom of the unit is up. Align the
mounting feet as shown in Figure 3. Secure the
feet using the supplied machine screws.
Note: Place BassLink+4 (with its feet) so the
controls are easy to adjust.
Securely mount BassLink+4 to the mounting
surface with the four enclosed self-tapping screws.
Figure 3. Vertical mounting of BassLink+4.
HORIZONTAL MOUNTING
Position BassLink+4 so that the controls are
facing down and the back of the unit is up. Align
the mounting feet as shown in Figure 4. Secure
the feet using the supplied machine screws.
Note: Place BassLink+4 (with its feet) so the
controls are easy to adjust.
Securely mount BassLink+4 to the mounting
surface using the four enclosed self-tapping screws.
Figure 4. Horizontal mounting of BassLink+4.
MOUNTING BASSLINK+4

BassLink+4
3
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 5).
Figure 5.Under-dash mounting of the REMOTE
LEVEL control.
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 BassLink+4
and the receptacle on the REMOTE LEVEL control
(Figure 6).
Figure 6.REMOTE LEVEL control electrical
connection.
INSTALLING THE REMOTE CONTROL
Make Power, Ground and Remote Turn-On
connections as shown in Figure 7. Observe
the following installation tips:
•Connect a short #8AWG GND wire from
Basslink+4 to the nearest bare metal surface.
Scrape away paint from the metal surface, if
necessary, and use a screw with a (star) lock
washer.
•Install a fuse holder with a 60A fuse within 18"
of the battery + terminal (see Figure 7).
•Use #8 AWG wire for the +BATT (+12Vdc) and
GND (ground) connections. If needed, use at
least a #20 AWG wire for the REM (remote)
connection.
•If you pass the power or remote wire through
the vehicle’s firewall or other metal obstruction,
it must be insulated with a rubber grommet.
•If your head unit provides a remote turn-on
lead, connect it to the REM terminal on
BassLink+4. For speaker-level applications,
aremote connection is not required, since
BassLink+4’s Auto Turn On feature will sense
asignal on the speaker wires and turn on
automatically.
Figure 7. Power connections for BassLink+4.
IMPORTANT: To enable BassLink+4’s Auto
Turn On feature, set AUTOTURN ON to the
AUTO position (see Figure 12 on page 5).
POWER CONNECTIONS

4
Note: In order for the Phantom Center circuit to
operate properly, the speakers and input wires
MUST be connected in proper polarity!
SPEAKER CONNECTIONS
Connect the speakers to the FRONT and REAR screw
terminals, observing proper polarity (Figure 8).
Figure 8. BassLink+4 audio connections.
INPUT CONNECTIONS
BassLink+4 is equipped with four line-level
(RCA) inputs and four speaker-level inputs. 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.You
must provide a full-range signal to all four input
channels. Do not connect a subwoofer output to
any of the inputs.
Connect the input signal wires according to
Figures 8a through 8d.
If your source unit provides only speaker-level
output wires, connect those wires to the Universal
Interface connections as shown in Figures 8a or 8b.
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 8c or 8d.
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.
Remote Level
Control
4-Channel
Line-Level Outputs
(from Source Unit)
Remote Level Control
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 8a: Input connections for a radio with four speaker level outputs
Figure 8b: Input connections for a radio with two speaker level outputs
Figure8c: Input connections for a radio
with four RCA connections
Figure8d: Input connections for a radio
with two RCA connections (use “y” adapters)
CONNECTIONS

CONTROLS AND FUNCTIONS
REMOTE CONTROL
SUB LEVEL: Use this control to adjust the
amount of bass to suit your preference.
PHANTOM CENTER:
LEFT: Slide the switch to this position to provide
aphantom 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
aphantom 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.
BASSLINK+4 SIDE-PANEL
PHANTOM CENTER: Use this switch to select the
proper adjustment of the Phantom Center circuit
according to your car and your preference, using
the setup CD.
FRONT/REAR GAIN: Use these to adjust the levels
of the front and rear speakers.
POWER LED:This indicator will glow blue when
BassLink+4 is operational.
Figure 11.BassLink+4 front-panel controls.
POWER LED: This indicator will glow blue when
BassLink+4 is operational.
GAIN CONTROL: Use this control to adjust the
relative volume (loudness) of BassLink+4’s
subwoofer with respect to the other speakers
in the vehicle.
CROSSOVER: Use this control to adjust the
amount of high-frequency information present
in BassLink+4’s subwoofer speaker.
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.
Figure 12.
PHASE CONTROL: Use this switch to invert
the phase of BassLink+4’s subwoofer output.
AUTO TURN ON: For speaker-level connections,
use this switch to activate (or deactivate)
BassLink+4’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.
BassLink+4
5
Figure 9.REMOTE LEVEL controls. Figure 10.BassLink+4 side-panel controls.