S P ECIFICATIONS
THANK YOU FOR CHOOS ING J BL
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.
note of enjoyment that you
expected – and that when
you think about purchasing
additional audio equipment
for your home, car or
you posted on our latest
advancements, and helps us
to better understand our
customers and build products
that meet their needs and
expectations.
PB10
PB12
Amplifier
Power (RMS):
150 Watts
250 Watts
Driver:
10" Pure-Cellulose Fiber
12" Pure-Cellulose Fiber
Inputs:
Line Level (switchable to LFE)
and Speaker Level with
Line Level (switchable to LFE)
and Speaker Level with
gold-plated 5-way binding posts
office, you will once again
choose JBL.
JBL Consumer Products
gold-plated 5-way binding posts
We’re confident that the JBL
loudspeakers you have
chosen will provide every
Please take a moment to
complete the enclosed profile
card. It enables us to keep
Outputs:
Speaker Level, High-Pass with
gold-plated 5-way binding posts
Speaker Level, High-Pass with
gold-plated 5-way binding posts
Low-Pass
Frequency:
Continuously variable
from 50Hz – 150Hz
Continuously variable
from 50Hz – 150Hz
High-Pass
Frequency:
150Hz when using
150Hz when using
speaker-level output
speaker-level outputs
Frequency
Response:
27Hz – low-pass
crossover setting
25Hz – low-pass
crossover setting
Dimensions
(H x W x D):
X +
0 +
Y 2
14" (16" with feet) x 14" x 15"
356mm (406mm with feet) x
356mm x 381mm
15-1/2" (17-1/2" with feet) x 15" x 16"
394mm (445mm with feet) x
381mm x 406mm
Weight:
35 lb/15.9kg
40 lb/18.2kg
0
M HZ
Occasional refinements may be made to existing products without notice,
but will always meet or exceed original specifications unless otherwise
stated.
*Trademarks of Dolby Laboratories.
DTS is a registered trademark of Digital Theater Systems, Inc.
X + 0 + Y2 0MHZ”
X + 0 + Y2
P RO S OUND
OWNER’S GUIDE
OWNER’S GUIDE
COMES HOME™
™
P RODUCT LINE:
™
P RODUCT LINE:
PowerBass SERIES
PowerBass SERIES
JBL Consumer Products
MODEL
MODEL
250 Crossways Park Drive, Woodbury, NY 11797
8500 Balboa Boulevard, Northridge, CA 91329
800-336-4JBL (4525) (USA only)
NUMBER:
NUMBER:
PB10, PB12
PB10, PB12
DES IGN GOAL: Bring the thrill of live performance and movie sound to
DES IGN GOAL: Bring the thrill of live performance and movie sound to
the home environment by calling on JBL’s professional engineering leadership.
the home environment by calling on JBL’s professional engineering leadership.
© 2000 JBL, Incorporated. JBL is a registered trademark
of JBL, Incorporated.
WOOFER TYP E: Pure cellulose fiber
WOOFER TYP E: Pure cellulose fiber
P ORT DES IGN: FreeFlow
™
flared
P ORT DES IGN: FreeFlow™ flared
Part No.203250
P ROFES S IONAL REFERENCE: Cinema Loudspeaker Series
P ROFES S IONAL REFERENCE: Cinema Loudspeaker Series
Dolby Pro Logic (Non-Digital) – Line Level
Dolby Digital or DTS (or Other Digital Surround Mode) Connection
Use this installation method
for Dolby Digital, DTS or other
digital surround processors:
then you may connect the
subwoofer output on your
receiver/preamplifier to either
the left or right line-level input
on the subwoofer. It makes no
difference which jack you
choose.
center and rear speakers
should be set to “Small” or
“Large” depending on their
size and frequency response.
Consult your receiver’s or
processor’s owner’s manual.
Use this installation method
for Dolby Pro Logic appli-
use the “LFE” position with
Dolby Pro Logic-only
processors.
Make sure your receiver or
processor is configured cor-
rectly: Make sure that the sub-
woofer is configured as “On.”
cations (not Dolby Digital, DTS
or other digital processing),
where the receiver/processor
is equipped with a subwoofer
output or a volume-controlled
preamp (line-) level output:
IMPORTANT: Make sure that
the LFE toggle switch on the
subwoofer is in the “LFE”
position. Use the line-level
input jacks for the Low-
Frequency Effects channel.
Connect these jacks to the
LFE output or subwoofer
output on your receiver or
amplifier.
Note: If your receiver or
amplifier only has one
Note for advanced users: If
your receiver/processor has
a built-in low-pass crossover
filter for the subwoofer output,
then the LFE switch should be
set to the “LFE” position to
bypass the subwoofer’s
subwoofer output jack,
then you may connect the
subwoofer output on your
receiver/preamplifier to either
the left or right line-level input
on the subwoofer. It makes no
difference which jack you
choose.
Connect each speaker to the
corresponding speaker
terminals on your receiver or
amplifier.
Use RCA-type patch cords
to connect the line-level
subwoofer outputs on your
receiver or amplifier to the
line-level inputs on the
subwoofer. IMPORTANT:
Make sure that the LFE toggle
switch on the subwoofer is in
the “Normal” position. Do not
internal crossover.
Make sure that you have
configured your surround-
sound processor for
“Subwoofer On” or “LFE On.”
The front left, front right,
Note: If your receiver or
amplifier only has one
subwoofer output jack,
Connect each speaker to the
corresponding speaker
terminals on your receiver or
amplifier.
LEVEL
LEVEL
Max
NORMAL
Min
Max
NORMAL
Min
LFE
0º
LFE
180º
PHASE
0º
180º
PHASE
CROSSOVER
FREQUENCY
CROSSOVER
FREQUENCY
RECEIVER
150Hz
50Hz
150Hz
50Hz
RECEIVER/PREAMPLIFIER
Subwoofer
Out
Subwoofer
Output/LFE
L
R
L
R
L
R
LINE LEVEL IN
LINE LEVEL IN
For LFE use L or R
For LFE use L or R
L
L
HIGH
LEVEL
IN
HIGH
LEVEL
IN
R
R
+ –
+ –
L
L
HIGH
LEVEL
OUT
HIGH
LEVEL
OUT
R
R
5
4
Phase Control
OP ERATION
Power
When the unit is plugged in
and (for the PB12 only) the
power switch is on and no
from green to red after the
input signal to the subwoofer
is removed. Due to JBL’s
turned off, whenever desired.
The PB10 must be unplugged
if you do not wish to leave it in
auto (standby) mode.
The Phase Control determines
whether the subwoofer’s
piston-like action moves in
and out in phase with the
main speakers or opposite
the main speakers. There is
no correct or incorrect
bass output at the listening
position.
in the future you happen to
rearrange your listening room
and move your speakers, you
should experiment with the
phase switch in both
positions, and leave it in
the position that maximizes
bass performance.
signal is received, the LEDs on unique, high-output, high-
Remember, every system,
room and listener is different.
There are no right or wrong
settings; this switch offers the
added flexibility to adjust your
subwoofer for optimum
performance for your specific
listening conditions without
having to move your
the front of the unit will turn
red. When a signal is present,
the LEDs will turn green.
Note: It will take several
efficiency amplifier design,
power consumption is minimal
when the subwoofer is not
receiving a signal. Of course,
the PB12 subwoofer can be
minutes for the LEDs to turn
setting. Proper phase
adjustment depends on
several variables such as
subwoofer placement and
listener position. Adjust the
phase switch to maximize
Level Control
The subwoofer Level Control
adjusts the volume of the
subwoofer relative to the rest
of the system. Proper level
adjustment depends on
room size, subwoofer
placement, type of main
speakers and listener position.
Adjust the subwoofer level so
that the volume of the bass
information is pleasing to you.
speakers. If at some time
TROUBLES HOOTING
If you used the high-level
(speaker) inputs and there
is no sound from any of the
speakers:
several variables such as
If there is low (or no) bass
output:
If you used the line-level
inputs and there is no sound
from the subwoofer:
Crossover Adjustments
• Make sure the connections
to the left and right “Speaker
Inputs” have the correct
polarity (+ and –).
The Crossover Frequency
Control determines the highest
frequency at which the
subwoofer reproduces sounds.
If your main speakers can
comfortably reproduce some
low-frequency sounds, set this
control to a lower frequency
setting, between 50Hz – 100Hz.
This will concentrate the
subwoofer’s efforts on the
ultradeep bass sounds
required by today’s films and
music. If you are using smaller
bookshelf speakers that do not
extend to the lower bass
•
Check that receiver/amplifier
LEVEL
LEVEL
•
Check that receiver/amplifier
is on and a source is playing.
• Check that powered
subwoofer is plugged into an
active electrical outlet and is
switched on.
Max
NORMAL
Max
NORMAL
Min
Min
is on and a source is playing.
• Check that powered
subwoofer is plugged into
an active electrical outlet
and is switched on.
• Check all wires and
connections between
receiver/amplifier and
speakers. Make sure all wires
are connected. Make sure
none of the speaker wires are
frayed, cut or punctured.
• Review proper operation
of your receiver/amplifier.
LFE
LFE
• Make sure that the
PHASE 0º
180º
PHASE 0º
180º
subwoofer is plugged into an
active electrical outlet and
(PB12 only) switched on.
• Adjust the crossover point.
• Flip the Phase Control
switch to the opposite
position.
• If you are using a Dolby
Digital/DTS receiver or
processor, make sure that the
subwoofer adjustments on
the receiver/processor are
set up correctly.
CROSSOVER
FREQUENCY
CROSSOVER
FREQUENCY
150Hz
150Hz
• Check all wires and con-
nections between receiver/
amplifier and subwoofer.
Make sure all wires are
connected. Make sure none
of the wires are frayed, cut
or punctured.
• Review proper operation of
your receiver/amplifier.
• Slowly turn the Level
Control clockwise until you
begin to hear the desired
amount of bass.
50Hz
50Hz
PowerBass PB10
PowerBass PB12
L
R
L
R
LINE LEVEL IN
LINE LEVEL IN
For LFE use L or R
For LFE use L or R
L
HIGH
LEVEL
IN
L
HIGH
LEVEL
IN
R
R
+
–
+
–
L
L
HIGH
LEVEL
OUT
HIGH
LEVEL
OUT
frequencies, set the low-pass
crossover control to a higher
setting, between 120Hz –
150Hz. This control is not used
when the LFE switch is in the
“LFE” position.
R
R
• Slowly turn the Level
Control clockwise until you
begin to hear the desired
amount of bass.
120V
60Hz, 160W
120V
60Hz, 160W
ON
OFF
• Make sure that you have
configured your receiver/
processor so that the
POWER
subwoofer/LFE output is on.
PowerBass PB10
PowerBass PB12
CAUTION
CAUTION
RISK OF ELECTRIC SHOCK
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DO NOT OPEN
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