Harman Infinity BassLink SM - User Manual

EN
THANK YOU
for choosing the Infinity BassLink SM. BassLink SM 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 SM 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 SM
IMPORTANT: Disconnect the vehicle’s negative (–) battery
terminal before beginning the installation.
NOTE: If you are using only the BassLink SM’s line-level (RCA)
inputs, you must connect the remote wire from the BassLink SM
to the system’s head unit so BassLink SM 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 SM’s speaker-level inputs will sense voltage on the
speaker wires and the BassLink SM 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
not have a dedicated subwoofer output
you can connect the rear left/right
outputs to the BassLink SM’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 SM to the source
unit’s speaker outputs. See the
illustration for the wiring configuration.
Power
Connectors
Audio System
Head Unit
BassLink
Chassis Ground
(bare metal)
18”
(46cm)
20A Fuse
Remote Turn-On (optional)
>#18AWG (0.82mm
2
) Wire
>#12AWG (2.05mm
2
) Wire
>#12AWG (2.05mm
2
) Wire
CONNECTIONS
Power Connections
L+ R+
L– R–
BassLink SM

Summary

Thank You

Installation

Choosing a Mounting Location

Guides selection of optimal placement for subwoofer in vehicle. Avoids interference with cargo or vehicle operation.

Mounting BassLink SM

Provides instructions for physically attaching the unit to the vehicle. Emphasizes disconnecting the battery first.

Connections

Power Connections

Details how to connect the power supply (+BAT, REM, GND) to the BassLink SM unit.

Input Connections

Explains how to connect audio sources via line-level or high-level inputs.

Tuning BassLink SM

Phase Switch

Reverses phase to optimize upper bass reproduction based on vehicle acoustics.

Level Control

Adjusts input sensitivity and relative volume of the BassLink SM.

Crossover Control

Filters frequencies to achieve a smooth transition with other speakers.

Bass Boost Control

Enhances low-frequency output, variable from 0dB to +9dB.

Audio Sense Switch

Enables automatic turn-on when using high-level inputs.

Input Load Switch

Optimizes noise performance for high-level inputs.

Remote Connection

Notes compatibility with optional wired remote volume control.

Adjustment Sequence

Step-by-step guide for setting up and tuning the BassLink SM for optimal performance.

Specifications

Harman Infinity BassLink SM Specifications

General

Frequency Response	30 Hz - 120 Hz
Enclosure Type	Sealed
Type	Powered Subwoofer
Driver Size	8 inches
Inputs	Speaker-level inputs, line-level inputs
Fuse	15A