INSTALLATION & USER GUIDE
For Music and Voice
Reproduction from
In-Ceiling Locations
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6-1/2” BUILDER GRADE IN-CEILING LOUDSPEAKER
FEATURES: LSC-BG
■ 6-1/2” Polypropylene woofer with urethane surround
®
■ 3/4” Fluid-cooled ultra-wide Kaladex tweeter
■ Moisture and UV resistant
■ Rust proof aluminum grilles
Installation friendly design:
■ Suitable for painting
■ Connection terminals accept up to 12 gauge speaker wire
■ Quick mounting system for new construction or retrofit installations
■ Includes hole template and paint mask
■ Ceiling Bracket for New Construction: Jobsite NCB-6 (sold separately)
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PRODUCT OVERVIEW
The illustration shows how a
typical JobSite LSC loudspeaker
mounts into a ceiling.
Ceiling Bracket serves as a “hole
saver” when drywall has not been
applied. Cannot be used when
installing into existing ceilings.
Knockout wire tie allows the wire to be
secured to the bracket throughout the
new construction process. It knocks out
cleanly when the speaker is installed.
Wings instantly snap into
the bracket without screws.
Dogs swivel 90°, then
clamp the speaker frame
to the drywall.
Frames are molded with a
slight texture to assure good
paint adhesion.
Wings are scored for easy
size trimming.
Mounting screws tighten the
“dogs”, clamping the speaker to
the drywall.
Brackets and wings attach
to the ceiling joists with
nails or screws.
Rust-proof aluminum grilles make the loud-
speaker perfect for moist environments.
Figure 1
PACKAGE CONTENTS
If you are installing the speakers into a new
ceiling follow the above recommendations and
install a set of JobSite NCB-6 Ceiling Brackets,
prior to the drywall being installed.
■ Speakers x 2
■ Speaker grilles x 2
■ Speaker cutout template / paint mask x 1
Run speaker wire from each location to the
amplifier location. Label the speakers wires
at the amplifier end, so you know which wire
goes to each speaker.
PREPARING FOR INSTALLATION
If you are installing the LSC-BG into an existing
ceiling, take time to consider any possible
obstructions which may be hidden inside
the ceiling: ceiling joists, electrical wiring,
telephone wiring, plumbing, AC or heating
conduit and ductwork.
TOOLS REQUIRED
■ Stud Locator (for existing construction)
■ Drywall saw (for existing construction)
■ Pencil (for existing construction)
■ Cordless screwdriver with No2 Philips bit
■ Wire stripper
Determine the best mounting locations based
on the room layout. Before cutting any holes,
make sure the area behind both speakers is
clear for installation. Speakers provide the best
coverage, when centered in the room. Line
up the speakers with a permanently mounted
ceiling fixture such as can lights,
■ Wire labels
or a light fixture.
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9. Strip 1/4” of insulation from the end of
each wire coming from the amplifier.
INSTALLATION
Installation Existing Construction:
10. Tightly twist the end of each wire until no
frayed ends remain.
1. Use a stud locator to identify the location
of the ceiling joists on each side of the
proposed loudspeaker mounting location.
11. Attach the speaker wires to the speaker
terminal connectors. Connect the
negative output from the amplifier to the
black terminal and the positive output to
the red terminal.
2. Mark ceiling joists’ edges, using
masking tape.
3. Repeat this process for the other
loudspeaker locations.
12. There are four clamps “dogs” which
hold each speaker in place. Rotate all
the dogs inward.
4. You may have to adjust the loudspeaker
mounting locations based on how the
ceiling joists line up with the proposed
speaker mounting locations.
13. Insert the loudspeaker into the cutout in
the ceiling.
5. Check for clearance using the following
method:
14. The dogs are tightened via four
front-baffle screws. Tighten the dogs
by turning the screws clockwise,
while pressing the loudspeaker against
the ceiling. NOTE: DO NOT OVER
TIGHTEN THESE SCREWS. Over-
tightening the screws may make the
grille difficult to install.
a. Drill a 1/4” pilot hole in the center of the
intended speaker location.
b. Cut a foot-long piece of coat hanger.
c. Bend the wire, creating a right angle,
leaving 4-1/4” at one end.
d. Poke the “L-shaped” wire into the pilot
hole and turn it in a complete circle,
checking for obstructions.
15. Install the grille into the speaker.
16. Repeat this procedure for the next
speaker.
e. Push it up into the ceiling cavity to
make sure you have approximately
4” of depth.
New Construction Installation:
Install the proper ceiling bracket for this
loudspeaker (NCB-6) using the instructions
supplied with the bracket. After the
hole is cut in the drywall per the bracket
instructions, perform the following steps:
f. If the coat hanger’s movement is
obstructed by anything, fill the hole(s)
with spackle and try another location.
6. Locate the hole template and remove
the inside portion of it. The inside portion
can be used as a paint mask, if you are
painting the frame of the loudspeaker.
1. Strip 1/4” of insulation from the end of
each wire coming from the amplifier.
2. Tightly twist the end of each wire until
no frayed ends remain.
7. Use a pencil and hole template to trace
the hole outline in the desired location on
the ceiling.
3. Attach the speaker wires to the speaker
terminal connectors. Connect the negative
output from the amplifier to the black
terminal and the positive output from the
amplifier to the red terminal.
8. Use a drywall saw to cut along the
penciled line.
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4. There are four clamps “dogs” which
hold each speaker in place. Rotate all
the dogs inward.
holes. Paint both sides of the grille to cover
all the white paint.
OPERATION
5. Insert the loudspeaker into the cutout in
the ceiling.
Listening at Higher Volumes
It requires more power to achieve a
reasonable volume of sound in a large
room than it does in a small room. It is
possible to turn the volume so high that
the amplifier runs out of power. This
creates “clipping” distortion.
6. The dogs are tightened via four
front-baffle screws. Tighten the dogs
by turning the screws clockwise,
while pressing the loudspeaker against
the ceiling. NOTE: DO NOT OVER
TIGHTEN THESE SCREWS. Over-
tightening the screws may make the grille
difficult to install.
Clipping distortion makes treble sound very
harsh and unmusical. When you hear harsh
sounding treble from any good speaker,
turn the volume down immediately! You are
much less likely to damage a speaker with
a large amplifier because it will be more
difficult to produce clipping distortion.
8. Install the grille into the speaker.
9. Repeat this procedure for the next
speaker.
SPECIFICATIONS: LSC-BG
Removing the Grilles:
Power handing:
To remove the grille from the LSC-BG, obtain
a small paper clip (size #1, common) and
bend the last quarter inch of it into an “L”
shape. Holding the paper clip with a pair of
pliers, insert the end with the “L” into a hole
near the edge of the grille. Remove the grille
by pulling the paper clip towards you.
5 – 75 watts
Frequency response:
55Hz-20kHz +/- 4dB
Impedance:
8 ohms
Dimensions:
9-1/4” outside frame diameter
Painting the Speakers:
8” diameter hole cutout
The speakers must be masked prior to
painting them. The inside circular portion
of the hole template can be used as a
paint mask. Remove the outside portion
of the template by gently pulling along the
perforation. Affix the mask to the front of the
speaker using a piece of tape. Fold the tape
onto itself to form a double-sided loop. Affix
the tape to the tweeter and place the mask
onto the speaker.
2-3/4” deep when installed in 1/2” drywall
Ceiling Bracket for New Construction:
JobSite NCB-6 (sold separately)
Warranty: 5 year limited
Painting the Grilles:
The LSC-BG grilles should be painted
before they are installed on the speakers.
The best results will be obtained by using a
spray gun or airless sprayer. Thin the paint,
and then apply several light coats. This
technique helps prevent clogging of grille
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This Warranty will be void if the Serial Number on
the product has been removed, tampered with or
defaced.
LIMITED WARRANTY
JobSite Systems (“JobSite”) warrants to the original
retail purchaser only that this product will be free of
manufacturing defects in material and workmanship
for the following periods and subject to the
THE FOREGOING WARRANTIES ARE EXCLUSIVE
AND IN LIEU OF ALL OTHER EXPRESSED AND
IMPLIED WARRANTIES. JOBSITE EXPRESSLY
DISCLAIMS ALL SUCH OTHER WARRANTIES,
INCLUDING BUT NOT LIMITED TO IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NON-
INFRINGEMENT, WITH RESPECT TO THE PRODUCT.
TO THE MAXIMUM EXTENT PERMITTED BY
LAW, JOBSITE SHALL NOT BE RESPONSIBLE
FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES EXCEPT TO THE EXTENT PROVIDED
(OR PROHIBITED) BY APPLICABLE LAW, EVEN IF
JOBSITE HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES.
limitations and exclusions set forth below:
Lifetime Warranty
All Passive Loudspeaker Products (those not
requiring AC or battery power).
Ten years from the date of purchase
All Other Passive Products (those not requiring
AC or battery power).
Two years from the date of purchase
All Active Products (those requiring AC or battery
power).
Notwithstanding the above, if you qualify as a
“consumer” under the Magnuson-Moss Warranty
Act, or applicable state laws, then you may be
entitled to any implied warranties allowed by law
for the Warranty Period. Further, some states
do not allow limitations on how long an implied
warranty lasts or allow the exclusion or limitation of
consequential damages, so such limitations may not
apply to you. This warranty gives you specific legal
rights, and you may also have other rights which
vary from state to state.
This warranty is not transferable to subsequent
purchasers of the product. To obtain warranty
service, contact the authorized dealer where you
purchased your product or take the unit to the
nearest authorized JOBSITE dealer (with proof of
purchase – claims made without proof of purchase
will be denied) who will test the product and if
necessary, forward it to JOBSITE for service. If
there are no authorized JOBSITE dealers in your
area, you must contact JOBSITE to receive a factory
Return Authorization Number. DO NOT RETURN
ANY UNIT WITHOUT FIRST RECEIVING WRITTEN
AUTHORIZATION AND SHIPPING INSTRUCTIONS
FROM JOBSITE.
For the name of your nearest authorized JOBSITE
dealer, contact: JOBSITE SYSTEMS, 12331 SW 130 ST,
Miami, Florida 33116-0818, or call 1-866-452-7483.
Upon examination, JOBSITE will, at its sole option
and expense, repair or replace any product found
to be defective. JOBSITE will return the repaired or
replaced unit to you via its usual shipping method
from the factory to your address in the United States
of America or Canada only. Any shipping costs for
addresses outside of the United States or Canada
shall be the responsibility of the purchaser. In the
event that this model is no longer available and
cannot be repaired effectively, JOBSITE, at its sole
option, may replace it with a different model of equal
or greater value, or refund the original purchase
price paid. THE FOREGOING ARE YOUR EXCLUSIVE
REMEDIES FOR BREACH OF WARRANTY.
Please fill in your product information and retain for
your records.
Model______________________ Serial No.______
________________ Purchase Date________
JobSite Systems, a Niles Audio
Corporation company
P.O. Box 160818, Miami, Florida 33116
This Warranty does not include service or parts
to repair damage caused by improper use or
handling, including but not limited to damage caused
by accident, mishandling, improper installation,
commercial use, abuse, negligence, or normal wear
and tear, or any defect caused by repair to the
product by anyone other than JOBSITE.
This warranty does not cover reimbursement for
your costs of removing and transporting the product
for warranty service evaluation, or installation of any
replacement product provided under this warranty.
5
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JOBSITE SYSTEMS
12331 S.W. 130 STREET, MIAMI, FLORIDA 33186
P (866) 4JB-SITE (866-452-7483) – F (305) 238-0185
WWW.JOBSITESYSTEMS.COM
JobSite Systems, a Niles Audio Corporation company, 12331 S.W. 130 Street, Miami, Fl 33186. ©2008 Niles Audio Corporation. JobSite, The
JobSite logo, Pure Custom and Niles are registered trademarks of Niles Audio Corporation. All other trademarks are the property of their respec-
tive owners. Some JobSite products (or components thereof) are manufactured under one or more U.S. Patents, foreign equivalents and/or
pending patents (see product for details). Because we constantly strive to improve our products, JobSite reserves the right to change product
specifications, descriptions, and prices without notice. The technical and other specifications of information contained herein are not intended
calling JobSite at 866-452-7483. Printed in China. DS00640A
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