JBL VENUE SUB12 User Manual

®
JBL VENUE™  
SUB12 (120V)  
OWNER’S GUIDE  
INTRODUCTION  
JBL® SUB12 Powered Subwoofer  
For more than 60 years, JBL has been providing audio equipment to concert  
halls, recording studios and movie theaters around the world, and has become  
the hands-down choice of leading recording artists and sound engineers.  
SUB  
RIGHT-  
CHANNEL  
SPEAKER  
With the JBL Venue Series, innovative technologies such as titanium-  
laminate-dome tweeters, EOS waveguides and PolyPlas transducer  
reinforcement are available to you. Enjoy!  
Unpacking the Subwoofer  
If you suspect damage from transit, report it immediately to your dealer. Keep  
the shipping carton and packing materials for future use.  
PLACEMENT  
Since the installation of a subwoofer can be somewhat more complicated than  
installation of full-range speakers, it is essential that you read this section very  
carefully prior to connecting the subwoofer to your system. Should you have  
questions relating to your installation, it is advisable to call either your dealer  
or JBL’s Customer Service Department for advice.  
PRIMARY  
LISTENING  
AREA  
The performance of the subwoofer is directly related to its placement in the  
listening room and how you align the subwoofer with its satellite speakers.  
Setting the volume of the subwoofer in relationship to the left and right speakers  
is also of critical importance because it is essential that the subwoofer inte-  
grate smoothly with the entire system. Setting the subwoofer’s volume level  
too high will result in overpowering, boomy bass. Setting the volume level too  
low will negate the benefits of the subwoofer.  
Figure 1. This example shows the subwoofer positioned behind the  
right-channel satellite speaker to re-create the actual location of  
bass instruments in an orchestra and/or add impact to  
movie soundtracks.  
Here are several additional facts on installation that may prove useful.  
It is generally believed by most audio authorities that low frequencies (below  
125Hz) are nondirectional and, therefore, placement of a subwoofer within any  
listening room is not critical. While in theory it is true that the larger wave-  
lengths of extremely low frequencies are basically nondirectional, the fact is  
that, when installing a subwoofer within the limited confines of a room, reflec-  
tions, standing waves and absorptions generated within the room will strongly  
influence the performance of any subwoofer system. As a result, specific  
location of the subwoofer becomes important, and we strongly recommend  
that you experiment with placement before choosing a final location.  
Placement will depend upon your room and the amount and quality of bass  
required (for example, whether or not your room permits placement of the  
subwoofer near either satellite).  
3
CONTROLS AND CONNECTIONS  
Rear Panel  
¡
Subwoofer-Level Control  
£
¢
§
LFE/Normal Selector  
Phase Switch  
¡
LEVEL  
Crossover Adjustment  
Line-Level/LFE Input  
High (Speaker)-Level Inputs  
Power Switch  
Green: On  
Red: Standby  
Max  
Min  
LFE  
NORMAL  
PHASE 0º  
180º  
£
80Hz  
Status LED  
CROSSOVER  
FREQUENCY  
¢
150Hz  
50Hz  
L
R
LINE LEVEL IN  
For LFE use L or R  
L
HIGH  
LEVEL  
IN  
§
R
+ –  
ON  
OFF  
120V  
60Hz  
POWER  
JBL Venue  
SUB12  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
NRTL/C  
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL  
CSA 22.2  
UL1492  
SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.  
AVERTISSEMENT: POUR PRÉVENIR LES RISQUES D'INCENDIE OU DE CHOC  
ÉLECTRIQUE, ÉVITER D'EXPOSER CET APPAREIL A LA PLUIE OU A L'HUMIDITÉ.  
4
SYSTEM CONNECTIONS  
®
®
If you have a Dolby Digital or DTS receiver/processor with a  
low-frequency-effects (LFE) or subwoofer output:  
If your receiver/processor does not have subwoofer outputs  
for the left and right channels or an LFE output, connect  
speaker wire from your receiver/amplifier to your speakers  
and subwoofer using two sets of speaker wire:  
SUBWOOFER OR  
LFE OUTPUT  
LEVEL  
Green: On  
Red: Standby  
Max  
Min  
LFE  
NORMAL  
LEVEL  
Green: On  
Red: Standby  
Max  
NORMAL  
Min  
0º  
180º  
PHASE  
80Hz  
LFE  
RECEIVER/AMPLIFIER  
Front Speaker Output  
CROSSOVER  
FREQUENCY  
0º  
180º  
PHASE  
80Hz  
150Hz  
50Hz  
CROSSOVER  
FREQUENCY  
150Hz  
50Hz  
L
R
LINE LEVEL IN  
L
R
Set LFE/Normal switch to “LFE.”  
For LFE use L or R  
LINE LEVEL IN  
For LFE use L or R  
L
HIGH  
LEVEL  
IN  
R
If your receiver/processor does not contain a Dolby Digital  
or DTS processor, but has subwoofer outputs:  
LEVEL  
Green: On  
RECEIVER/PROCESSOR  
Max  
Red: Standby  
Min  
LFE  
NORMAL  
0º  
180º  
PHASE  
80Hz  
L
R
CROSSOVER  
FREQUENCY  
150Hz  
50Hz  
L
R
LINE LEVEL IN  
For LFE use L or R  
This figure shows how to connect bare wires to the terminals.  
L
HIGH  
LEVEL  
IN  
R
Set line-level/LFE switch to  
“Normal.”  
+ –  
NOTE: If your receiver/processor  
has only one sub out, you may  
use either the L or R input.  
5
OPERATION  
MAINTENANCE AND SERVICE  
Power On  
The enclosure may be cleaned using a soft cloth to remove fingerprints or to  
wipe off dust.  
Plug your subwoofer’s AC cord into a wall outlet. Do not use the outlets on the  
back of the receiver.  
Initially set the Subwoofer-Level Control ¡ to the “min” position.  
The grille may be gently vacuumed. Stains may be removed with an aerosol  
cleaner, following its instructions. Do not use any solvents on the grille.  
Turn on your sub by pressing the Power Switch on the rear panel.  
All wiring connections should be inspected and cleaned or remade periodically.  
The frequency of maintenance depends on the metals involved in the connections,  
atmospheric conditions and other factors, but once per year is the minimum.  
Turn on your entire audio system and start a CD or movie soundtrack at a  
moderate level.  
If a problem occurs, make sure that all connections are properly made and  
clean. If a problem exists in one loudspeaker, reverse the connection wires to  
the left and right system. If the problem remains in the same speaker, then the  
fault is with the loudspeaker. If the problem appears in the opposite speaker,  
the cause is in another component or cable. In the event that your subwoofer  
a service center near you.  
Auto On/Standby  
With the Power Switch  
in the ON position, the Status LED  
on the  
back panel will remain lit in red or green to indicate the On/Standby mode  
of the subwoofer.  
RED = STANDBY (No signal detected, Amp Off)  
GREEN = ON (Signal detected, Amp On)  
The subwoofer will automatically enter the Standby mode after approximately  
10 minutes when no signal is detected from your system. The subwoofer will  
then power ON instantly when a signal is detected. During periods of normal  
use, the Power Switch  
can be left on. You may turn off the Power Switch  
for extended periods of nonoperation, e.g., when you are away on vacation.  
Adjust Gain  
Turn your Subwoofer-Level Control ¡ up to the halfway position. If no sound  
emanates from the subwoofer, check the AC-line cord and input cables. Are the  
connectors on the cables making proper contact? Is the AC plug connected to  
a “live” receptacle? Has the Power Switch been pressed to the “On” posi-  
tion? Once you have confirmed that the subwoofer is active, proceed by play-  
ing a CD, record or cassette. Use a selection that has ample bass information.  
Set the overall volume control of the preamplifier or stereo to a comfortable  
level. Adjust the Subwoofer-Level Control ¡ until you obtain a pleasing blend  
of bass. Bass response should not overpower the room but rather be adjusted  
so there is a harmonious blend across the entire musical range. Many users  
have a tendency to set the subwoofer volume too loud, adhering to the belief  
that a subwoofer is there to produce lots of bass. This is not entirely true. A  
subwoofer is there to enhance bass, extending the response of the entire sys-  
tem so the bass can be felt as well as heard. However, overall balance must  
be maintained or the music will not sound natural. An experienced listener will  
set the volume of the subwoofer so its impact on bass response is always  
there but never obtrusive.  
Phase Control  
The Phase Switch £ determines whether the subwoofer speaker’s pistonlike  
action moves in and out with the main speakers, 0˚, or opposite the main  
speakers, 180˚. Proper phase adjustment depends on several variables such  
as room size, subwoofer placement and listener position. Adjust the phase  
switch to maximize bass output at the listening position.  
Crossover Adjustment  
The Crossover Adjustment 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 and 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 Crossover Adjustment control to a higher setting,  
between 120Hz and 150Hz.  
NOTE: This control will have no effect if the LFE/Normal Selector is set  
to LFE. If you have a Dolby Digital or DTS processor/receiver, the Low-Pass  
Frequency is set by the processor/receiver. Consult your owner’s manual  
to learn how to view or change this setting.  
6
SPECIFICATIONS  
SUB12  
Frequency Response  
Amplifier RMS Power  
25Hz – 150Hz  
250 Watts  
500 Watts  
Amplifier Peak Dynamic Power  
Crossover Frequency  
50Hz – 150Hz  
24dB/octave, continuously variable  
Driver  
12" (300mm) PolyPlas  
Dimensions (H x W x D)  
(with grille)  
19-3/4" x 14-3/8" x 18"  
(502mm x 365mm x 457mm)  
Weight  
39.5 lb (18kg)  
† The Peak Dynamic Power is measured by recording the highest center-to-peak voltage  
measured across the output of a resistive load equal to minimum impedance of the trans-  
ducer, using a 50Hz sine wave burst, 3 cycles on, 17 cycles off.  
7
All features and specifications are subject to change without notice.  
JBL and Harman International are registered trademarks, and Venue Series, EOS,  
PolyPlas and Pro Sound Comes Home are trademarks, of Harman International  
Industries, Incorporated.  
Dolby and Pro Logic are registered trademarks of Dolby Laboratories.  
DTS is a registered trademark of DTS, Inc.  
PRO SOUND COMES HOME  
JBL Consumer Products, 250 Crossways Park Drive, Woodbury, NY 11797 USA  
8500 Balboa Boulevard, Northridge, CA 91329 USA  
2, route de Tours, 72500 Château du Loir, France  
516.255.4JBL (4525) (USA only) www.jbl.com  
© 2006 Harman International Industries, Incorporated. All rights reserved.  
Part No. 406-000-05452-E  

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