INSTALLATION & USER GUIDE
For Accurate Music and
Voice Reproduction from
In-Ceiling Locations
LSC-8
8" IN-CEILING LOUDSPEAKER
FEATURES: LSC-8
■ 8" Talc-filled polypropylene woofer with treated foam rubber surround
■ 3/4" pivoting liquid cooled polycarbonate dome 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-8 (sold separately)
1
PRODUCT OVERVIEW
The illustration shows how a
typical JobSite LSC-8 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 loudspeaker
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-8 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-8 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 Phillips 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,
or a light fixture.
■ Wire labels
2
INSTALLATION
9. Strip 1/4" of insulation from the end of
each wire coming from the amplifier.
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.
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.
5. Check for clearance using the following
method:
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.
15. Install the grille into the speaker.
d. Poke the “L-shaped” wire into the pilot
hole and turn it in a complete circle,
checking for obstructions.
16. Repeat this procedure for the next
speaker.
Installation New Construction:
e. Push it up into the ceiling cavity to
make sure you have approximately
4" of depth.
Install the proper ceiling bracket for this
loudspeaker (NCB-8) 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.
1. Strip 1/4" of insulation from the end of
each wire coming from the amplifier.
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.
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.
3
4. There are four clamps “dogs” which
hold each speaker in place. Rotate all
the dogs inward.
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.
5. Insert the loudspeaker into the cutout in
the ceiling.
Painting the Grilles:
The LSC-8 grille 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 holes. Paint
both sides of the grille to cover all the white
paint.
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.
OPERATION
8. Install the grille into the speaker.
Listening at Higher Volumes
9. Repeat this procedure for the next
speaker.
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.
Directing theTweeter:
The tweeter is directed by gently pushing
on the outside edge of the tweeter grille. It
will move 20° in any direction. For critical
listening, point the tweeter to the user’s
favorite listening position, minimizing
reflections from the side walls. For surround
sound or low volume background listening
create more reflections and thus more
ambience by directing the tweeter towards
the side walls.
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.
SPECIFICATIONS: LSC-8
Removing the Grilles:
Power handing:
To remove the grille from the LSC-8, 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 – 100 watts
Frequency response:
55Hz-20kHz +/- 3dB
Impedance:
6 ohms
Dimensions:
10-5/8" outside frame diameter
Painting the Speakers:
9-1/2" 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
3-3/4" deep when installed in 1/2" drywall
Ceiling Bracket for New Construction:
JobSite NCB-8 (sold separately)
Warranty: 5 year limited
4
WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE, WITH RESPECT TO
THE PRODUCT.
LIMITED WARRANTY
JobSite Systems (“JOBSITE”), a Niles Audio
Corporation company, warrants its passive products
(those not requiring AC or battery power) to the original
purchaser to be free of manufacturing defects in
material and workmanship for a period of ten years
from date of purchase.
REPAIR OR REPLACEMENT AS PROVIDED UNDER
THIS WARRANTY IS THE EXCLUSIVE REMEDY OF
THE CONSUMER/PURCHASER. JOBSITE SHALL
NOT BE RESPONSIBLE FOR ANY INCIDENTAL
OR CONSEQUENTIAL DAMAGES EXCEPT TO
THE EXTENT PROVIDED (OR PROHIBITED) BY
APPLICABLE LAW.
JOBSITE warrants its passive loudspeaker products
(those not requiring AC or battery power) to the
original purchaser to be free of manufacturing
defects in material and workmanship for a period of
five years from date of purchase.
Some states do not allow the exclusion or limitation
of incidental or consequential damages, so the above
limitation 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.
JOBSITE warrants its indoor/outdoor loudspeaker
products to the original purchaser to be free of
manufacturing defects in material and workmanship
for a period of two years from date of purchase.
For the name of the nearest authorized JOBSITE
wholesale distributor, contact:
JobSite Systems
JOBSITE warrants its all weather rock loudspeaker
products to the original purchaser to be free of
manufacturing defects in material and workmanship
for a period of five years from date of purchase.
12331 S.W. 130 Street, Miami, Florida 33186
WWW.JOBSITESYSTEMS.COM
JOBSITE warrants its active products (those requiring
AC or battery power) to the original purchaser to
be free of manufacturing defects in material and
workmanship for a period of two years from date of
purchase.
This Warranty is subject to the following additional
conditions and limitations. The Warranty is void and
inapplicable if JOBSITE deems that the product has
been used or handled other than in accordance
with the instructions provided by the manufacturer,
including, but not limited to, damage caused
by accident, mishandling, improper installation,
abuse, negligence, or normal wear and tear, or any
defect caused by repair to the product other than
by JOBSITE or an authorized JOBSITE wholesale
distributor.
To obtain warranty service, you must write to
JOBSITE: Include your name, address, telephone
number, model number and serial number of your unit,
and a brief description of the problem.
A factory Return Authorization Number will be
sent to you. DO NOT RETURN ANY UNIT WITHOUT
FIRST RECEIVING WRITTEN AUTHORIZATION AND
SHIPPING INSTRUCTIONS FROM JOBSITE.
If the above conditions are met, the purchaser’s sole
remedy shall be to return the product to JOBSITE,
in which case JOBSITE will repair or replace, at its
sole option, the defective product without charge for
parts or labor. JOBSITE will return the unit repaired
or replaced under warranty by shipping it by its usual
shipping method from the factory (only) at its expense
within the United States of America. THERE ARE
NO OTHER WARRANTIES, INCLUDING, WITHOUT
LIMITATION, EITHER EXPRESS OR IMPLIED
5
JOBSITE SYSTEMS
12331 S.W. 130 STREET, MIAMI, FLORIDA 33186
P 866.4JB.SITE (866.452.7483) – F 305.238.0185
WWW.JOBSITESYSTEMS.COM
© 2005 JobSite Systems. All rights reserved. JobSite, Pure Custom and Niles are registered trademarks of Niles Audio Corporation and the
JobSite Logo is a trademark of Niles Audio Corporation. All other trademarks are the property of their respective 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 to set forth all technical and other speci-
fications of JobSite products. Additional information can be obtained at WWW.JOBSITESYSTEMS.COM or by calling JobSite at 866.452.7483.
Printed in China. 07/05 DS00451ACN
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