Harman JBL BassPro SL2 Guide De Démarrage Rapide page 4

TUNING BASSPRO SL2
BassPro SL2 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.
Line-
Power Remote Level
Connections Connection
Inputs
Fuse High-Level
(15A) Input
Phase Switch: This switch will reverse the phase of BassPro
SL2's output with respect to its input. When installing BassPro SL2
with an existing factory or aftermarket system, depending on
BassPro SL2'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
BassPro SL2. Use this control to adjust the relative volume
(loudness) of BassPro SL2 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 BassPro SL2'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 BassPro SL2 to the rest of the system's speakers while
avoiding a "hole," where the sounds that occur between the
BassPro SL2 and other speakers seem to drop out.
Bass Boost Control: BassPro SL2's interaction with the
acoustics of your vehicle may produce a peak or dip in BassPro
SL2'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 BassPro SL2 to your system's radio/head unit (see
Input Connections, above), set the Audio Sense switch in the
"On" position. This will allow the BassPro SL2 to sense voltage on
the speaker inputs and turn itself on when the rest of the audio
system turns on.
HARMAN International
Industries, Incorporated
8500 Balboa Boulevard,
Northridge, CA 91329 USA
Crossover
Control
Audio
Sense Level
Switch Control
Input Phase Bass
Load Switch Boost
Switch Control
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JBL is a trademark of HARMAN International Industries, Incorporated, registered in the
United States and/or other countries. All Rights Reserved. Features, specifications and
appearance are subject to change without notice.
Input Load Switch: This switch has an effect only when you
have used the High-Level inputs to connect the BassPro SL2 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 BassPro SL2'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 BassPro SL2, as heard at the
listening position, contains only low-frequency information;
i.e., you should NOT hear any vocals coming from BassPro SL2
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
JBL car audio dealer for help in tuning your system.
SPECIFICATIONS
Amplifier Power : 125Wrms
Frequency Response : 35Hz – 120Hz
Fuse : 15A
Maximum Current Draw : 12A
Quiescent Current Draw : <800mA
Input Sensitivity : 0.05 V – 2.0 V Low-Level Input;
0.5 V – 20V High-Level Input
Crossover Frequency : 50Hz – 120Hz
Crossover Slope : 12dB/octave
Bass Boost : 0dB to +9dB @ 70Hz
Dimensions (W x H x D) : 13-9/16" x 9-7/8" x 2-13/16"
(344mm x 250mm x 71mm)