JBL Speaker PSW D112 115 User Manual

PSW-D112, PSW-D115  
simple setup guide  
thank you  
for choosing JBL. For more  
than 50 years, JBL has been involved in every  
aspect of music and film recording and reproduc-  
tion, from live performances to monitoring the  
recordings you play in your home, car or office.  
We’re confident that the JBL Loudspeakers you have  
chosen will provide every note of enjoyment that  
you expected – and that when you think about pur-  
chasing additional audio equipment for your home,  
car or office, you will once again choose JBL.  
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Placement  
• As a general rule, bass  
response increases as a  
subwoofer is placed closer  
to a wall. Therefore, bass  
output is maximized when  
the subwoofer is placed in  
a corner.  
• It is also recommended  
that the subwoofer be  
positioned along the  
same wall as the front  
loudspeakers.  
Low-frequency sounds are  
normally omnidirectional,  
meaning the listener can’t  
tell where they are generated  
from. However, frequencies  
between 75Hz – 150Hz can  
be localized, especially at  
higher volume levels.  
Positioning your subwoofer  
as recommended will provide  
the most natural soundstage  
and imaging from your loud-  
speaker system.  
Remember that these are just  
guidelines. Since every listen-  
ing room is different, JBL  
strongly recommends experi-  
menting with the positioning  
of your subwoofer to obtain  
the most pleasing results in  
your room. One technique that  
can help you find the ideal  
subwoofer location is to tem-  
porarily place the subwoofer  
near the main listening loca-  
tion. Then move around the  
room and determine where you  
hear the most pleasing bass  
performance. This would then  
be the ideal location for the  
subwoofer.  
RECEIVER/AMPLIFIER  
SPKR In  
L
Left  
Center  
Right  
180  
0
Phase  
L
L
I
N
E
L
I
N
E
C
R
+
+
+
C
Hookup  
O
U
T
I
N R  
When we designed the  
SPKR Out  
Direct  
PSW-D112 and PSW-D115  
powered subwoofers, our goal  
was to offer the user the best  
possible performance com-  
bined with the most flexible  
and complete installation  
options. Please look over the  
following four examples to  
determine which description  
best matches your system and  
follow the corresponding  
hookup instructions.  
L
120  
90  
90  
150  
High  
Pass  
C
R
180  
180  
60  
60  
120  
+
+
+
150  
LEFT  
SPEAKER  
CENTER  
SPEAKER  
RIGHT  
SPEAKER  
Low  
Pass  
Power  
Off  
On  
+
+
+
1) If your receiver/amplifier  
has no subwoofer  
outputs or preamp  
outputs for the left,  
center and right  
channels.  
+
+
+
– 3 –  
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SPKR In  
L
RECEIVER/AMPLIFIER  
SUBWOOFER OUT  
180  
0
Phase  
L
LEFT  
RIGHT  
L
I
N
E
L
I
C
R
N
E
C
O
U
T
I
N R  
MAIN SPEAKER OUTPUT  
SPKR Out  
+
+
RIGHT  
LEFT  
Direct  
L
120  
90  
90  
150  
C
R
High  
Pass  
180  
180  
60  
60  
120  
SPKR In  
150  
L
Low  
180  
0
Phase  
Pass  
+
+
RIGHT  
LEFT  
L
L
I
L
I
C
R
LOUDSPEAKER  
LOUDSPEAKER  
Power  
N
E
N
E
C
Off  
On  
O
U
T
I
N R  
+
+
+
SPKR Out  
Direct  
L
120  
RECEIVER/PREAMPLIFIER  
90  
90  
150  
C
R
High  
Pass  
Subwoofer  
Output  
180  
180  
60  
60  
120  
+
150  
+
+
Low  
Pass  
Power  
2) If your receiver/amplifier  
has subwoofer outputs  
or preamp output jacks  
for the left, center and  
right channels, or left  
and right only.  
Note: Some receivers/ampli-  
fiers have a single (mono)  
subwoofer output. In this  
case, it is recommended that  
you use a “Y”-connector (not  
included) to maximize the  
subwoofer’s performance.  
3) If your receiver/processor  
contains a Dolby* Digital  
and/or DTS** surround  
processor.  
Off  
On  
+
+
+
When hooked up using this  
method, all of the crossover  
and level adjustments are  
controlled through the  
receiver/processor.  
+
+
+
– 4 –  
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4) If your receiver/ampli-  
fier has preamp output  
jacks and main input  
jacks for the left, center  
and right channels, or  
left and right channels  
only, or you have a  
a variable low-pass crossover.  
When hooked up as shown  
above, the subwoofer will  
limit the low-frequency infor-  
mation that is returned to  
your receiver/amplifier. Your  
receiver/amplifier does  
RECEIVER/AMPLIFIER  
separate preamp/  
processor and  
power amplifier.  
not need to waste valuable  
power reproducing the low  
frequencies. In addition,  
since no low-frequency  
information is being sent  
to your main loudspeakers,  
they are able to reproduce  
mid and high frequencies  
with greater clarity.  
SPKR In  
PRE  
OUT  
MAIN  
IN  
180  
0
Phase  
L
This method of hookup can  
offer the highest level of  
performance for your  
complete loudspeaker system.  
The PSW-D112 and PSW-D115  
incorporate a variable high-  
pass crossover in addition to  
LEFT  
CENTER  
RIGHT  
L
L
I
N
E
L
I
N
E
C
R
C
O
I
N
R UT  
SPKR Out  
Direct  
L
120  
MAIN SPEAKER OUTPUT  
90  
90  
150  
C
R
High  
Pass  
180  
180  
60  
60  
+
+
RIGHT  
LEFT  
120  
150  
Low  
Pass  
Power  
Off  
On  
+
+
RIGHT  
LEFT  
LOUDSPEAKER  
LOUDSPEAKER  
+
+
+
+
+
+
– 5 –  
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Operation  
Video Contour  
Level Control  
Power  
The video-contour switch,  
located on the front panel,  
optimizes the subwoofer’s  
performance for movie listen-  
ing. When the video-contour  
switch is on,the subwoofer’s  
performance is tailored to  
deliver the impact and  
The subwoofer Level Control,  
located on the front panel,  
adjusts the volume of the  
subwoofer relative to the rest  
of the system. Proper level  
adjustment depends on several  
variables such as room size,  
excitement of today’s movies.  
The green LED will illuminate  
when the video-contour switch  
is on.  
When the unit is plugged in  
and power is on and no signal  
is received for approximately  
10 15 minutes, the sub-  
woofer will go into a standby  
mode until a signal is present.  
Due to JBLs unique, high-  
efficiency digital-amplifier  
design, power consumption is  
minimal when the subwoofer  
is not receiving a signal. Of  
course, the subwoofer can be  
turned off, whenever desired.  
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.  
Crossover Adjustments  
High-Pass Control  
Low-Pass Control  
• If you hooked up your sub-  
woofer as shown in Hookup 4  
on page 5, you also have  
the capability of adjusting  
the high-pass frequency.  
The High-Pass control  
determines the frequency at  
which the main speakers  
will start reproducing  
sounds. If your main speak-  
ers can comfortably repro-  
duce some low-frequency  
sounds, also set this  
control to a lower frequency  
setting, between 50Hz –  
100Hz. This will concentrate  
the subwoofer’s efforts to  
the ultradeep bass sounds,  
while your main speakers  
continue to reproduce the  
mid-bass information. If you  
are using smaller bookshelf  
speakers that do not extend  
to the lower bass frequencies,  
set the high-pass crossover  
control to a higher setting,  
between 125Hz – 180Hz.  
With this setting, your main  
speakers will not have the  
burden of reproducing any  
low-frequency sounds.  
• If you hooked up your sub-  
woofer as shown in Hookup1  
on page 3, the high-pass  
frequency is fixed at 180Hz.  
• If you hooked up your  
subwoofer as shown in  
on page 4, all crossover  
adjustments are bypassed.  
All crossover adjustments  
must then be adjusted on  
the receiver/processor.  
The Low-Pass control deter-  
mines 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 frequencies, set  
the low-pass crossover control  
to a higher setting, between  
120Hz – 180Hz.  
Note: If you hooked up your  
subwoofer as shown in Hookup  
3 on page 4, all crossover  
adjustments are bypassed. All  
crossover adjustments must  
then be adjusted on the  
120  
High  
90  
90  
150  
150  
Pass  
180  
60  
60  
120  
Low  
Pass  
Final adjustment and blending  
of the low-pass and high-pass  
controls may evolve over sev-  
eral listening sessions. A good  
starting point would be to set  
both the low- and high-pass  
controls to the same frequency  
and adjust from that point.  
180  
Hookup 2 on page 4, there  
is no high-pass control.  
Unless your receiver/  
amplifier incorporates a  
high-pass crossover, your  
main speakers will continue  
to get a full-range signal.  
• If you hooked up your sub-  
woofer as shown in Hookup3  
receiver/processor.  
– 6 –  
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Troubleshooting  
Phase Control  
If you used the high-level  
(speaker) inputs and there is  
no sound from any of the  
speakers, check the  
If there is low bass output,  
check the following:  
If you used the line-level  
inputs and there is no sound  
from the subwoofer, check  
the following:  
180  
0
Phase  
• Make sure the connections  
to the left and right “Speaker  
Inputs” have the correct  
polarity (+ and –).  
• Make sure that the sub-  
woofer is plugged into an  
active electrical outlet.  
• Powered subwoofer is  
plugged in.  
• Adjust the crossover point.  
• 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.  
following:  
• Receiver/amplifier is on and  
a source is playing.  
• Powered subwoofer is  
plugged in.  
• 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.  
Remember, every system,  
room and listener is different.  
There are no right or wrong  
settings; any setting you  
choose will result in excellent  
performance. Should you  
decide to fine-tune your  
system for optimum  
performance, be patient and  
trust your ears. It will be  
worth the effort involved to  
fully “tweak” your system.  
The Phase Control determines  
whether the subwoofer  
• Receiver/amplifier is on  
and a source is playing.  
• Powered subwoofer is  
speaker’s piston-like action  
moves in and out with the  
main speakers, 0°, or opposite  
the main speakers, 180°. There  
is no correct or incorrect set-  
ting. Proper phase adjustment  
depends on several variables  
such as subwoofer placement  
and listener position. Adjust  
the phase switch to maximize  
bass output at the listening  
position.  
plugged in.  
• Check all wires and connec-  
tions between receiver/ampli-  
fier 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.  
– 7 –  
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Specifications  
PSW-D112  
PSW-D115  
Amplifier Power (RMS)  
Driver  
250 watts  
350 watts  
12" High-Polymer Laminate  
Line Level and Speaker Level  
Line Level and Speaker Level  
Continuously variable from 60Hz – 180Hz  
15" High-Polymer Laminate  
Line Level and Speaker Level  
Line Level and Speaker Level  
Continuously variable from 60Hz – 180Hz  
Inputs  
Outputs  
Low-Pass Frequency  
High-Pass Frequency  
Continuously variable from 60Hz – 180Hz  
when using line-level outputs  
Continuously variable from 60Hz – 180Hz  
when using line-level outputs  
180Hz when using speaker-level outputs  
180Hz when using speaker-level outputs  
Frequency Response  
Dimensions  
28Hz – low-pass crossover setting  
25Hz – low-pass crossover setting  
17-1/2 x 17-1/2 x 19-1/8"  
445 x 445 x 486mm  
20 x 20 x 21-3/4"  
508 x 508 x 552mm  
Weight  
40 lbs/18.2 kg  
53 lbs/24.1 kg  
JBL Consumer Products  
250 Crossways Park Drive, Woodbury, NY 11797  
8500 Balboa Boulevard, Northridge, CA 91329  
1-800-336-4JBL (4525) (USA only)  
1998 JBL, Incorporated  
JBL is a registered trademark of JBL, Incorporated.  
*Trademark of Dolby Laboratories.  
©
**DTS is a trademark of Digital Theater Systems.  
Printed 9/98  
Part No. PSWD112,115OM  
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