JBL Portable Speaker LS360C User Manual

STUDIOSERIES  
LS360C  
OWNER’S GUIDE  
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PLACEMENT  
SPEAKER CONNECTIONS  
NOTE: In all applications, the tweeter and dual midrange drivers should be  
CONNECTION TIPS  
aimed toward the listening area.  
STEREO  
Before deciding where to place your speakers, survey your room and think  
about placement, keeping the following points in mind, and using Figure 1,  
on previous page, as a guide:  
• For best results, place the speakers 6'–8' apart.  
• Refer to “Home Theater” below if you also plan to use the speakers in  
a home theater system.  
HOME THEATER  
For front-channel use, place one speaker on the left and another on the  
right along either side of the television.  
A center channel speaker should go directly above the television. For left  
and right surround channels, place one speaker on the left and another  
on the right, to the side of or slightly behind the listening area. In 6- or  
7-channel configurations, place the rear channel(s) behind the listening  
position, as shown in Figure 3.  
NOTE: A JBL powered subwoofer will add impact and realism to both  
music and film soundtracks. Contact your JBL dealer for recommendations  
on subwoofer models for your application.  
Proper placement of the speakers is an important step in obtaining the most  
realistic soundstage possible. These recommendations are for the optimal  
placement of the loudspeakers. Use these placement recommendations as  
a guide. Slight variations will not diminish your listening pleasure.  
Figure 4.  
Wire Length  
Recommended Size  
INSTALLATION  
Up to 100 ft.  
Greater than 100 ft.  
16-gauge  
12-gauge  
NOTE: The LS360C in-ceiling speaker was designed to be easily installed.  
However, if you are unable to clearly and fully understand and follow the  
instructions in this manual, or if you are unsure of your ability to properly  
install these loudspeakers, please contact your dealer or a qualified installer.  
TURN OFF ALL POWER  
Before completing the installation, you must connect your speakers to your  
system. First, turn off all audio-system power. Use high-quality speaker wire  
to make your connections. Use at least #16-gauge speaker wire with polarity  
coding. Heavier-gauge wire is recommended for larger distances. Consult the  
chart above or your dealer for recommendations. The side of the wire with a  
ridge or other coding is usually considered positive (+) polarity. Also, consult  
the owner’s manuals that were included with your amplifier or receiver to  
confirm connection procedures.  
TOOLS NEEDED  
Pencil  
Phillips #2 screwdriver  
(Do not use a powered screwdriver  
of any kind)  
Observe polarities when making speaker connections, as shown in Figure 4.  
Connect each + terminal on the back of the amplifier or receiver to the  
respective + (red) terminal on each speaker. Connect the – (black) terminals  
in the same way.  
Measuring tape  
Utility knife  
IMPORTANT!  
Do not reverse polarities (i.e., + to – , or – to +) when making connections.  
Doing so will cause poor imaging and diminished bass response. Be certain  
that positive and negative wire strands are completely isolated to avoid short  
circuits that may damage your equipment.  
Carpenter’s level  
Awl  
3
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EXISTING CONSTRUCTION  
Template  
3. NOTE: Always allow at  
least a 1/2 inch between  
a ceiling stud/joist and the  
speaker cutout, or the  
locking tabs will not be  
able to swivel into place.  
1. Remove the plastic paint  
shield from the speaker frame.  
2. Determine the correct  
speaker location.  
NOTE: Use the included  
template when cutting the  
drywall.  
4. Ensure that the drywall or plywood  
board or other appropriate wallboard  
is at least a 1/2-inch thick, and confirm  
that the board material is capable of  
withstanding the weight of the speaker  
you will be installing. Cut the drywall.  
7. Screw down each of the four  
Phillips-head screws, alternating  
between the four screws. The  
locking tabs will swivel into  
place and secure the unit to the  
rear surface of the ceiling. Hand-  
tighten with a nonpowered,  
straight-handle regular screw-  
driver only. Do not use a socket  
wrench, a powered screwdriver,  
a drill or any other powered tool.  
Confirm that the speaker is firmly  
and securely held in place and  
that all four locking tabs are firmly  
resting against the ceiling.  
5. Connect the speaker wires to  
the speaker. It is recommended  
that the nylon cable-strain  
relief tab, located next to the  
speaker terminals, be used  
to help prevent the speaker  
wires from being accidentally  
dislodged (see Figure 5, below).  
6. Make sure all four locking tabs  
are properly positioned against  
the locking tab stops that are  
located on the speaker frame (see  
Figure 6, below). After confirming  
this, carefully place the frame  
assembly in the ceiling and con-  
firm that there is no more than  
1/8-inch play between the frame  
and the ceiling cutout. After posi-  
tioning the speaker in the mounting  
location, back each screw out one  
full turn (turn counterclockwise).  
8. Attach the metal grille  
and logo, if desired.  
Figure 6.  
Figure 5.  
4
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NEW CONSTRUCTION  
If you wish to preinstall a rough-in frame before the drywall is installed,  
you will need to purchase the RIF10C rough-in-frame. Detailed installation  
instructions are supplied with the rough-in kit.  
PAINTING THE SPEAKER  
FRAME AND GRILLE  
The LS360C in-ceiling loudspeaker can be painted to match any décor.  
If you wish to change the color, the satin finish on the grille and frame will  
function as a primer coat. Before painting, install the paint shield (inner  
section of template in the assembly kit) securely into the recess in the baffle.  
This will protect the speaker components and baffle from paint residue. Use  
a high-quality spray paint, and apply a thin coat of color. Be certain the grille  
perforations remain free of paint. Filling them with paint will diminish the  
sound quality.  
NOTE: Gently remove the acoustical foam blanket from the grille before  
painting. Reattach the blanket after the paint has dried.  
OPERATION  
SURROUND SETTINGS  
®
®
When using the system in a Dolby Digital or DTS home theater system,  
make sure all speakers are set to “Small.”  
Some Dolby Digital-equipped receivers/processors offer different setup  
options for each source or surround mode: e.g., CD-stereo, videotape, Dolby  
®
or Pro Logic . In each case, follow your equipment’s instructions to ensure that  
the subwoofer (if you have one) output is turned on and that the speakers are  
set to “Small” in each mode.  
TWEETER-LEVEL CONTROL  
In most typical listening rooms, this switch should be left in the neutral or  
“0” position. This setting will deliver the most neutral and balanced sound.  
In some extreme cases, it may be desirable to slightly boost or cut the  
tweeter’s output, depending upon the room layout, construction and  
furnishings.  
If the room is sparsely furnished, contains large exposed windows or is  
otherwise very reverberant, you may want to set the control to the “–”  
(–1.5dB) position. If the room is exceptionally absorbent because it is well  
furnished or has thick curtains and/or carpet, you may want to increase  
the tweeter output by setting this switch to the “+” position (+1.5dB).  
Of course, the control may be set to either position, based on listener  
preference.  
BOUNDARY COMPENSATION CONTROL  
This control is designed to be engaged when positioning the loudspeaker  
within two feet of another surface to eliminate the bass peak caused by  
the second surface and to maintain a smooth, natural bass response. For  
example, if you need to install your in-ceiling speaker within two feet of a  
side wall or corner, it is recommended that the Boundary Compensation  
control be set to the “On” position. In all other installations, the control  
should typically be set to “Off. Of course, the control may be set to either  
position, based on listener preference.  
5
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SPECIFICATIONS  
LS360C  
80Hz – 20kHz  
+
Frequency Range ( 3dB)  
Recommended  
10 – 200 Watts  
Amplifier Power Range  
Sensitivity  
(2.83V 1 meter)  
85dB  
@
Nominal Impedance  
Crossover Frequency  
8 Ohms  
700Hz, 2,000Hz;  
24dB/octave  
Low-Frequency Driver  
7-3/4" x 3-3/8" (197mm x 85mm)  
Radiator Plus™  
Midrange Drivers  
Dual 3" (75mm)  
High-Frequency Driver  
1" (25mm)  
Pure titanium  
External Diameter  
(W x H)  
Diameter: 12-3/4"  
(323mm)  
Mounting Cutout Diameter  
(W x H)  
Diameter: 11-3/8"  
(289mm)  
Mounting Depth  
Weight (Net)  
5-5/8" (142mm)  
8 lb (3.6kg)  
6
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NOTES  
7
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Declaration of Conformity  
We, Harman Consumer Group, Inc.  
2, route de Tours  
72500 Château du Loir  
France  
declare in own responsibility that the product described in this  
owner’s manual is in compliance with technical standards:  
EN 61000-6-3:2001  
EN 61000-6-1:2001  
Laurent Rault  
Harman Consumer Group, Inc.  
Château du Loir, France 7/07  
Features, specifications and appearance are subject to change without notice.  
JBL is a trademark of Harman International Industries, Incorporated, registered  
in the United States and/or other countries. Pro Sound Comes Home, Studio  
and Radiator Plus (patent pending) 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™  
Harman Consumer Group, Inc., 250 Crossways Park Drive, Woodbury, NY 11797 USA  
8500 Balboa Boulevard, Northridge, CA 91329 USA  
516.255.4JBL (4525) (USA only) www.jbl.com  
© 2007 Harman International Industries, Incorporated. All rights reserved.  
Part No. ML-16353-01  
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