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O W N E R ’ S G U I D E
P R O D U C T L I N E :
STUDIO™ SERIES
D E S I G N G O A L : Bring the thrill of live performance and movie sound to
the home environment by calling on JBL’s professional engineering leadership.
T W E E T E R T Y P E : Pure-titanium dome with EOS™ waveguide
W O O F E R T Y P E : Cast-aluminum basket with HeatScape™ motor structure
C R O S S O V E R N E T W O R K : Straight-Line Signal Path™ (SSP)
P O R T D E S I G N : FreeFlow™ flared
P R O F E S S I O N A L R E F E R E N C E : Studio Monitor
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T H A N K Y O U F O R C H O O S I N G J B L
For more than 50 years, JBL
has been involved in every
aspect of music and film
recording and reproduction,
from live performances to
the recordings you play in
your home, car or office.
you think about purchasing
additional audio equipment
for your home, car or
office, you will once again
choose JBL.
and build products that
meet their needs and
expectations.
JBL Consumer Products
Please take a moment to
complete the enclosed
profile card. It enables us to
keep you posted on our
latest advancements,
and helps us to better
understand our customers
We’re confident that the
JBL loudspeakers you have
chosen will provide every
note of enjoyment that you
expected – and that when
S P E A K E R P L A C E M E N T
Proper placement of the
speakers is an important
step in obtaining the most
realistic soundstage
placement of the loud-
speakers. Use them as a
guide. Slight variations will
not diminish your listening
pleasure.
The S412PII loudspeakers
are video-shielded and can
safely be placed near a
television.
possible. These recommen-
dations are for the optimal
The S412PII speaker features
four rubber feet that enable
it to be placed on a smooth-
surfaced floor, such as tile
or hardwood. Four metal
spikes are supplied for use
when the speaker is to be
placed on a carpeted
To insert the spikes, gently
lay the speaker on its side
(not its front or back) on a
soft, nonabrasive surface.
Each spike screws into the
threaded insert in the center
of each rubber foot. Make
sure all four spikes are
screwed in completely for
stability.
NEVER drag the speaker to
move it, as this will damage
the spikes, the feet and/or
the wood cabinet itself.
Always lift the speaker and
carry it to its new location.
CAUTION: Floorstanding
(tower) loudspeakers have
a high center of gravity and
may become unstable and
tip over during earthquakes
or if rocked, tipped or
improperly positioned. If this
is a concern, these speakers
should be anchored to the
wall behind them, using
the same procedures and
hardware customary for
anchoring bookcases and
wall units. Customer is
surface to decouple the
speaker from the floor and
prevent unwanted damping.
responsible for proper
installation and proper
selection of hardware.
3
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S P E A K E R C O N N E C T I O N S
CONNECTION TIPS
amplifier. Wiring “out of
phase” results in thin sound,
weak bass and a poor
stereo image.
through hole in the center
post is visible under the
collar. Insert the bare end of
the wire through this hole;
then screw the collar down
until the connection is tight.
The hole in the center of
each collar is intended for
use with banana-type
With the advent of
multichannel surround
sound systems, connecting
all of the speakers in your
system with the correct
polarity remains equally
important in order to
Speakers and electronics
terminals have corre-
sponding (+) and (–)
terminals. It is important to
connect both speakers
identically: (+) on the
speaker to (+) on the
amplifier and (–) on the
speaker to (–) on the
connectors.
preserve the proper
ambience and directionality
of the program material.
To use the binding-post
speaker terminals, unscrew
the collar until the pass-
SPEAKER-LEVEL CONNECTIONS
RIGHT
LEFT
–
+
–
+
–
+
–
+
Receiver’s Speaker Outputs
Your S412PII speakers
to the 5-way binding posts
If your receiver or amplifier
does not have a line-level
subwoofer output, then you
do not need to make any
other connections, and you
should skip to the section
titled “Amplifier Controls.”
should be connected to your
receiver in two ways (at
speaker level and line level)
in order to achieve the best
performance, especially
when listening to program
material recorded in digital
formats, such as Dolby*
on the back of each S412PII
speaker. Remember to
maintain the correct
polarities (“+” to “+” and
“–” to “–”). The S412PII uses
a red binding post for “+”
and black for “–”. These
connections will provide
full-range sound to all four
transducers, and you should
ALWAYS make these
®
Digital and DTS.
Connect the left-front and
right-front speaker terminals
on your receiver or amplifier
connections.
4
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LINE-LEVEL CONNECTIONS
RECEIVER/AMPLIFIER
SUBWOOFER OUT
Y-Connector
(not included)
RIGHT
LEFT
LFE IN
LFE IN
LEFT S412PII
RIGHT S412PII
Each S412PII speaker is also
equipped with a line-level
Low-Frequency Effects
(LFE/Subwoofer) input for
superior performance with
digital surround formats. The
.1 LFE channel contains
additional low-frequency
information not found in the
left- and right-front
channels. The LFE input
works with the full-range
speaker-level input to
provide the dynamics and
effects that your favorite
filmmakers intended.
You will need to use a
extension RCA patch cords.
Then plug each patch cord
into the LFE/Subwoofer input
of the left and right S412PII
speakers. Note: If your
receiver has separate
Y-Connector (not included)
with one male connector
and two female connectors
to connect the line-level
subwoofer output on your
receiver/amplifier to the
LFE/Subwoofer inputs on the
S412PII speakers. Plug the
male connector into the
subwoofer output on your
receiver or amplifier, and
connect each of the two
female connectors to
left and right line-level
subwoofer (or LFE) output
jacks, you do not need to
use a Y-Connector.
5
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AMPLIFIER CONTROLS
LFE Level Control: Allows
you to adjust the volume of
the low-frequency effects/
subwoofer channel to suit
your room acoustics or
tastes. However, it only
affects the LFE signal. If you
are not using the LFE input,
the LFE level control will not
operate.
the entire bass spectrum
below 80Hz, not just within
the .1 channel portion. This
configuration is generally
unnecessary but, in certain
room-placement conditions, it
allows greater bass-level
control.
S412PII
LFE IN –
LFE LEVEL
Power Switches: The main
“Power” switch is simply
marked “On” and “Off.” Turn
this switch on to commence
operation of the powered
amplifier after you have
plugged the power cord into
an AC outlet. The second
switch is labeled “On/Off”
and has two positions.
Placing the switch in the
“Auto” position puts the
amplifier in Standby mode.
In this mode the speaker will
be able to automatically
sense an incoming signal,
which will trigger it to turn
fully on. The speaker will
also automatically switch
itself back into Standby
mode after approximately 10
to 15 minutes have passed
without its sensing a signal.
We recommend that you
leave this switch in the
“Auto” position for most
applications. If you will be
away from home or not
using your speakers for an
extended period of time, you
should turn the speakers off
by using the main power
switch. The Manual position
will bypass the auto-sensing
feature and leave the
Min
Max
Configuring Your Receiver:
You should choose the
“Large” or “Wide” option for
the left- and right-front
speakers so that full low-
frequency information will
be sent to the S412PII
speakers. Make sure that
you also configure your
receiver for “Subwoofer On”
or “LFE On.” In this case, the
LFE/Subwoofer signal will
consist only of the .1 (bass)
channel. The LFE signal level
can be adjusted by using the
LFE level on the S412PII
amplifier panel. For initial
setup, you should set the
level controls on both
GREEN “ON”LED
ON
OFF
POWER
ON/OFF
ON
MANUAL
AUTO
OFF
This area is designed to become quite warm
during normal operation.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
“WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.”
“AVERTISSEMENT: POUR PRÉVENIR LES RISQUES D’INCENDIE OU
DE CHOC ELECTRIQUE, EVITER D’EXPOSER CET APPAREIL
PLUIE OU L’HUMIDITE.”
A
LA
A
LED Indicators: When your
speaker is turned on but is
not receiving a signal, the
LEDs on the front of the unit
glow red to let you know
that your speaker is plugged
in. When the speaker is
receiving a signal, the LEDs
glow green. We have
speakers at minimum
(full counterclockwise
rotation). With 5.1, 6.1 or 7.1
source material playing,
advance the level controls
on each speaker slowly until
the desired amount of
effects channel is present.
This is a rather subjective
adjustment and should be
made using a variety of
program materials.
provided a convenient
“Green ‘On’ LED” switch on
the back panel to allow you
to shut off the front LEDs
should they interfere with
your enjoyment of a movie.
This switch has no effect
when the LEDs are in red
mode.
If you choose, you can use
the “Small” or “Narrow”
setting on your receiver.
In this case, all of the
information below 80Hz
will be fed to the LFE/
amplifier on until turned off
with the main switch or
returned to auto sensing by
choosing the auto position.
Subwoofer input on the
S412PII. Now the level
control operates throughout
6
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T R O U B L E S H O O T I N G
If there is no sound from
any of the speakers:
tions between receiver/
amplifier and speakers.
• Make sure all wires are
connected. Make sure none of
the speaker wires are frayed,
cut or punctured.
• In Dolby Digital or DTS mode,
make sure your receiver/
processor is configured so that
the subwoofer and LFE output
are enabled.
• Check that receiver/amplifier
is on and that a source is
playing.
• Review proper operation of
your receiver/amplifier.
• If more than one pair of
main speakers is being used,
check the minimum impedance
requirements of your receiver/
amplifier.
If you are using the S412PII
LFE/Subwoofer input and the
bass level decreases (instead
of increasing) when you turn
the LFE/Subwoofer Level knob
clockwise:
• Recheck to make sure that
your receiver or amplifier-
speaker outputs are correctly
connected to the S412PII
speaker inputs (gold-plated
binding posts), (+) to (+) and (–)
to (–). The S412PII (+) terminal
has a red stripe and is located on
the right-hand side, below the
letter “L” of the molded JBL logo,
when looking directly at the back
of the S412PII.
• If the wires are connected
properly, the confusion may be
attributable to the design of your
receiver/amplifier. Your unit may
have inverting inputs, which
reverse the polarity of the signal
between the inputs and outputs
of the amplifier. To check if this is
the case, reverse the speaker
connections for ALL S412PII’s in
your system (and disconnect any
other speakers in the system)
so that the receiver/amplifier’s
(+) connector is connected to
each S412PII’s (–) (black stripe)
speaker connector. If you do
this and the S412PII’s function
properly (bass increases as you
turn your LFE/Subwoofer level-
control knobs clockwise), your
receiver/amp uses inverting
inputs. This is not a problem.
Simply connect all of the
If there is no sound coming
from one speaker:
• Check the “Balance” control
on your receiver/amplifier.
• Check all wires and connec-
tions between receiver/
If there is no (or low) bass
output:
• Make sure the polarities
(+ and –) of the left and right
“Speaker Inputs” are
amplifier and speakers.
• Make sure all wires are
connected. Make sure none of
the speaker wires are frayed,
cut or punctured.
• Make sure no wires are
touching other wires or
connected properly.
• Make sure that the speaker
is plugged into an active
electrical outlet and switched
on, and that the green LEDs are
displayed.
terminals and creating a short
circuit.
• In Dolby Digital or DTS mode,
make sure your receiver/
processor is configured so that
the subwoofer and LFE output
are enabled.
• Turn off all electronics and
switch the speaker in question
with one of the other speakers
that is working correctly. Turn
everything back on, and
determine whether the
If you used the LFE input and
there is no sound from the
subwoofer:
• Check that receiver/amplifier
is on and that a source is
playing.
• Make sure that the speaker
is plugged into an active
electrical outlet and switched
on, and that the green LEDs are
displayed.
• Check all wires and connec-
tions between receiver/
amplifier and speakers.
• Make sure all wires are
connected. Review the “Line-
Level Connections” section on
page 5 of this manual and make
sure that a single RCA patch
cord is connected to each
loudspeaker from the
problem is in the same place,
i.e., the speaker that was
working previously now has no
sound and the speaker that
was not working now sounds
fine; or whether it has moved,
i.e., the speaker that was not
working still has no sound and
the speaker that was working
is still fine. If the problem is in
the same place, the source of
the problem is most likely with
your receiver or amplifier, and
you should consult the owner’s
manual for that product for
further information. If the
problem has followed the
speaker, consult your dealer
for further assistance or, if that
is not possible, visit our Web
information.
speakers in your system the
same way, with the receiver or
amplifier’s (+) terminal to the
speaker’s (–) terminal, and the
receiver or amplifier’s (–)
Y-Connector plugged into the
receiver/amplifier’s subwoofer
output. Make sure none of the
speaker wires are frayed, cut
or punctured.
If the system plays at low
volumes but shuts off as
volume is increased:
terminal to the speaker’s (+)
terminal.
7
• Check all wires and connec-
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S P E C I F I C AT I O N S
Maximum Recommended
Amplifier Power:** 250W
Powered Subwoofer
Amplifier Output: 200W
Nominal Impedance: 8 Ohms
Sensitivity (2.83V/1m): 92dB
Frequency Response (–3dB): 32Hz – 20kHz
Crossover Frequencies: 250Hz, 700Hz, 3500Hz
High-Frequency Transducer: 1" Pure-titanium dome, with rubber surround, shielded;
Elliptical Oblate Spheroidal™ (EOS) waveguide
Midrange Transducer: 4" PolyPlas™ (polymer-coated cellulose fiber) cone, rubber
surround, shielded; Linear Field Proximity™ (LFP) bezel
Midbass Transducer: 6" PolyPlas™ (polymer-coated cellulose fiber) cone, rubber
surround, shielded
Low-Frequency Transducer: 12" PolyPlas™ (polymer-coated cellulose fiber) cone,
rubber surround, SFG,™ magnetic shorting rings, high-temp
®
oversized Kapton voice coil, HeatScape™ motor structure,
cast-aluminum basket, shielded
Dimensions (H x W x D): 44" x 14-3/4" x 16-1/16" (17" with grille)
1118mm x 375mm x 408mm (432mm with grille)
Weight (per speaker): 100 lb (45.5kg)
All features and specifications are subject to change without notice.
*Trademark of Dolby Laboratories.
DTS is a registered trademark of Digital Theater Systems, Inc.
**The maximum recommended amplifier power rating will ensure proper system headroom to
allow for occasional peaks. We do not recommend sustained operation at these maximum
power levels.
O W N E R ’ S G U I D E
P R O S O U N D
C O M E S H O M E ™
™
P R O D U C T L I N E :
STUDIO SERIES
M O D E L
N U M B E R :
JBL Consumer Products
S412PII
250 Crossways Park Drive, Woodbury, NY 11797
8500 Balboa Boulevard, Northridge, CA 91329
800-336-4JBL (4525) (USA only)
D E S I G N G O A L : Bring the thrill of live performance and movie sound to
the home environment by calling on JBL’s professional engineering leadership.
T W E E T E R T Y P E : Pure-titanium dome with EOS™ waveguide
W O O F E R T Y P E : Cast-aluminum basket with HeatScape™ motor structure
C R O S S O V E R N E T W O R K : Straight-Line Signal Path™ (SSP)
P O R T D E S I G N : FreeFlow™ flared
©2001 JBL, Incorporated
JBL is a registered trademark of JBL, Incorporated.
Part No. 338047-001
P R O F E S S I O N A L R E F E R E N C E : Studio Monitor
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