Harman Infinity BassLink SM2 User manual

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Basslink SM2 Quick Start Guide
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THANK YOU
for choosing the Infinity Basslink SM2. Basslink SM2 has been
designed to provide the kind of high-performance low-frequency
reproduction 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
WARNING
Playing loud music in an automobile can permanently damage
your hearing as well as hinder your ability to hear traffic. We
recommend using low volume levels while driving. Harman
International accepts no liability for hearing loss, bodily injury or
property damage resulting from the use or misuse of this product.
INSTALLATION
Choosing a mounting location
Choose a location that doesn't interfere with the loading or
unloading of cargo, fold-down rear seats, or opening or closing of
the trunk lid. The best location is likely to be the front or rear
corner of the trunk or luggage compartment. These locations, in
addition to being out of the way, will provide the best sonic
reproduction in the 60Hz - 100Hz range because the output of
the woofer will be "corner loaded" against the walls of the vehicle.
In any case, the Basslink SM2 must not interfere with the safe
operation of the vehicle.
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.
Mounting Basslink SM2
IMPORTANT: Disconnect the vehicle's negative(-) battery
terminal before beginning the installation.
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CONNECTIONS
Power Connections
Power
Connectors
Basslink SM2
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Audio System
Head Unit
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Chassis Ground
(bare metal)
1
Remote Turn-On (optional) _J
>#18AWG (0.82mm') Wire
>#12AWG (2.05mm') Wire
>#12AWG (2.05mm') Wire
NOTE: If you are using only the Basslink SM2's line-level (RCA)
inputs, you must connect the remote wire from the Basslink SM2
to the system's head unit so Basslink SM2 will turn on and off with
the system. If you will be using the speaker-level outputs from
your head unit, you do not need to connect the remote output.
The Basslink SM2's speaker-level inputs will sense voltage on the
speaker wires and the Basslink SM 2 will turn itself on. (See Audio
Sense Switch, below.)
Input Connections
Connect the subwoofer output from the
source unit to either the left or right
line-level input. If your source unit does TE
not have a dedicated subwoofer output
you can connect the rear left/right ~
outputs to the Basslink SM2's left and )
right inputs.
If your source unit doesn't have
line-level outputs you can use the
included speaker-level input harness to
connect the Basslink SM2 to the source
unit's speaker outputs. See the
illustration for the wiring configuration.
LI
L- R-

TUNING Basslink SM2
Basslink SM 2 provides several controls that simplify sonic
integration with virtually any vehicle's unique acoustic properties.
Please read the following section carefully to familiarize yourself
with the function of each control.
Crosso,e,
Con1rol
Une• Audio
Power Remote Level Sense Level
t.onnections Connection Inputs Switch Control
Fuse Hlgh-level
{15A) Input
Input Phase Bass
Load Switch Boost
S- Cootrol
Phase Switch: This switch will reverse the phase of Basslink
SM2's output with respect to its input. When installing Basslink
SM2 with an existing factory or aftermarket system, depending on
Basslink SM2's location in the vehicle and the distance between it
and the other speakers in the car, changing the setting of the
phase switch may produce a discernable increase or decrease in
the amount of upper bass reproduced. Although the position that
yields the most upper bass is technically correct, you may choose
the position that best suits your taste.
Level Control: This control will adjust the input sensitivity of
Basslink SM2. Use this control to adjust the relative volume
(loudness) of Basslink SM2 with respect to the other speakers in
the vehicle.
Crossover Control: The crossover control adjusts the amount of
upper bass and midbass information present in Basslink SM2's
output. After listening to music on the system for a time, fine-tune
the Crossover control setting to achieve a smooth transition from
the Basslink SM2 to the rest of the system's speakers while
avoiding a "hole," where the sounds that occur between the
Bass link SM2 and other speakers seem to drop out.
Bass Boost Control: Basslink SM2's interaction with the
acoustics of your vehicle may produce a peak or dip in Basslink
SM2's response. For the vast majority of vehicles, these peaks or
dips occur at about 40Hz -around the frequency of the lowest
bass guitar note. Use the Bass Boost control to correct that peak
or dip. Adjustment between 0dB and +9dB is possible. Although
response without any sharp peaks or dips is technically correct,
you may choose the position that best suits your taste.
Audio Sense Switch: If you have used the High-Level inputs to
connect the Basslink SM2 to your system's radio/head unit (see
Input Connections, above), set the Audio Sense switch in the
"On" position. This will allow the Basslink SM2 to sense voltage on
the speaker inputs and turn itself on when the rest of the audio
system turns on.
Input Load Switch: This switch has an effect only when you
have used the High-Level inputs to connect the Basslink SM2 to
your system's radio/head unit. For the lowest noise in most
applications, set the Input Load switch in the "High" position. In
some cases, (such as when using the radio's power fader), the
"Low" position may produce better results.
Remote Connection: This connector is compatible with the
RBC remote volume control.
Adjustment sequence
1. Start with Level control set to minimum, the Phase switch set
to "0" and the Crossover and Bass Boost controls rotated to
the 3 o'clock position.
2. Choose program material with substantial bass content and
turn the volume control on your head unit to three-quarters of
its total output (approximately 3 o'clock on rotary controls).
3. Adjust the gain control clockwise until the Basslink SM2's
volume sounds balanced with the rest of the system.
4. Continue listening, making a mental note of the amount of
upper bass present in your system.
5. Switch the Phase switch to "180" and recheck 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 you may choose either setting
according to your taste.
6. Adjust the Crossover control clockwise or counterclockwise
until the perceived output from Basslink SM2, as heard at the
listening position, contains only low-frequency information;
i.e., you should NOT hear any vocals coming from Basslink
SM2 when you are seated in the normal listening position.
7. Adjust the Bass Boost control clockwise or counterclockwise
to suit your taste.
Note: Although this adjustment sequence will in most cases
provide satisfactory tuning, the actual process may include
several readjustments of each of the controls since their settings
will interact with each other. If necessary, consult your authorized
Infinity car audio dealer for help in tuning your system.
SPECIFICATIONS
Amplifier Power : 125W RMS
Frequency Response : 35Hz -120Hz
Fuse : 15A
Maximum Current Draw : 12A
Quiescent Current Draw : <800mA
Input Sensitivity : 0.05V -2.0V Low-Level Input;
0.5V -20V High-Level Input
Crossover Frequency : 50Hz -120Hz
Crossover Slope : 12dB/octave
Bass Boost : 0dB to +9dB (variable) @ 70Hz
Dimensions (W x H x D) : 13-9/16" x 9-7/8" x 2-13/16"
(344mm x 250mm x 71 mm)
~
HARMAN
HARMAN International
Industries, Incorporated
8500 Balboa Boulevard,
Northridge, CA 91329 USA
www.infinityspeakers.com
© 2019 HARMAN International Industries, Incorporated. All rights reserved.
~
Infinity is a trademark of HARMAN International Industries, Incorporated, registered in the
United States and/or other countries. Features, specifications and appearance are subject to
change without notice.

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