SI 3C LP
Ceiling Speaker
User’s Guide
Frame Construction Ceiling Installation
1
Take the cutout template from the packaging box and
punch out along the larger perforated circle. Place the
cutout template against the ceiling and trace along the inside
circle. Carefully cut out the ceiling material along the circle.
Cut material.
Trace template.
2
The side terminal cover, as shown in step 3f, must first
be removed before wiring the speaker.
Loosen the single top screw of the side terminal cover and
pull the side terminal cover straight out. See the illustration
below.
Loosen
screw.
Side Terminal
Cover
c. Insert the conduit(s) into the knockout opening(s) and
secure the conduit to the cover with the locking nut.
N Installation in a plenum-rated environment
requires a wire gauge of 14 AWG to 18 AWG.
d. Pull the speaker wires from the conduit, strip 0.2" (5 mm)
from the wire ends (do not tin the wires), and secure the
wires into the 4-pole captive screw connector.
To connect speakers in parallel, see the
wiring diagram below.
4-pole Captive
Screw Connector
Power Amplifier
Speaker 1 Speaker 2
e. Bring the speaker up to the bottom of the hole in the
ceiling.
f. Plug the wired connector from step 3d into the speaker’s
audio input connector. Secure the top terminal cover
with the two top screws that were loosened in step 3a;
hook the side terminal cover to the top terminal cover; and
secure the side terminal cover in place with the screw that
was loosened in step 2.
Side View of Input Terminal
3
a. Remove the top terminal cover (see the illlustration in
step 3f) by loosening (do not remove) both top screws,
sliding the top terminal cover away from the screws, and
removing the cover, as shown here.
Loosen
two screws.
Top Terminal
Cover
Knockout
b. Remove the knockout(s) from the top terminal cover
depending on the direction from which the conduit(s) will
be entering the cover.
See NOTE below.
Top Terminal
Side Terminal
Cover
Cover
N Installation in a plenum-rated environment
requires a wire gauge of 14 AWG to 18 AWG.
4-pole Captive
Screw Connector
33-1351-01
Rev. B
IN
LOOP IN LOOP
Front View of Input Terminal
68-1469-01 Rev. B
11 07
1
User’s Guide
SI 3C LP
Ceiling Speaker
Painting the Speaker Baffle
Tear along the smaller perforated line of the cutout
template marked as a paint shield. Push it into the front
baffle of the speaker. Paint the front. Remove the paint
shield after the paint has dried.
Application diagram
DVD Player
2B2A4
PVT CV D
VIDEO RGB
32A1A32A
3
42B
VIDEO
MLC 104 IP+
AUDIO IN
VIDEO IN
AMPLIFIED OUTPUTS
LISTED
17TT
AUDIO/VIDEO
®
US
APPARATUS
O
U
T
P
STEREO
ON
AUX/MIX IN
U
ON
HIGH
T
PASS
S
FILTER
DUAL
OFF
MONO
LAN
Tx
Rx
Rx
Tx/IR
PWR S NS
GROUND
GROUND
HOST/
PROJECTOR
CONFIG
RS-232/IR
PRESS TAB WITH
TWEEKER TO REMOVE
+V
A B E
GROUND
+12V OUT
SCP
COMM
4/8
Ohms
L R
RS-232 MLC/IR
DC VOL
Tx
RxIR 12V
A B C
10V
VOL/MUTE
Extron
RS-232
SI 3C LP
Low Profile Ceiling
G
Tx
Rx
SCP
A B
MLS
RS-232
Speakers
+12V IN
GROUN D
GROUN D
PWR
12V
PC
Projector
AUDIO IN
COMPUTER IN
PVT RGB D
POWER
12V
3A MAX
PVS 204SA
RS-232
RGB
1A
1A
I
N
P
U
T
S
1B
1B
Specifications
Acoustic & Electrical
Speaker type................................. Low profile ceiling speaker with metal back can
Frequency response..................... 75 Hz to 17 kHz, -10 dB, half space
Power capacity.............................. 16 W continuous pink noise
32 W continuous program
Nominal sensitivity........................ 83 dB SPL, 1 W, 1 m, half space
Nominal coverage angle............... 170° conical coverage
Nominal impedance ..................... 8 ohms
Driver............................................ 3” (76 mm) paper cone
Overload protection....................... Full range power limiter
Input/output connector.................. (1) 5 mm captive screw connector, 4-pole for 1 input
and 1 loop-through
General
Package ....................................... 2 speakers (1 pair)
Temperature/humidity.................... Storage: -40 to +158 °F (-40 to +70 °C) /
10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) /
10% to 90%, noncondensing
Mounting....................................... Ceiling mountable with included hardware:
V-rails for 2’ x 4’ (600 mm x 1200 mm) ceiling tiles,
and C-rings
Enclosure type.............................. Metal back can; high impact, fire-resistant (UL94V-0)
plastic baffle/rim
Enclosure outer dimensions.......... 4.0” H x 9.9” diameter (102 mm x 251 mm diameter)
Cutout dimensions........................ 8.937” diameter (227 mm diameter)
Product weight.............................. 5 lbs (2.3 kg) each
Shipping weight............................. 20 lbs (10 kg) per pair with mounting kit package
Listings ......................................... UL 2043, UL1480
Compliances ................................ CE, NFPA90, NFPA70A
Warranty ....................................... 5 years parts and labor
Packaging
V-rails (4)
Mounting Screws
& Putty
Speakers
C-rings
Speaker Grilles
All nominal levels are at ±10%.
Specifications are subject to change without notice.
www.extron.com
Extron Electronics, USA
1230 South Lewis Street
Anaheim, CA 92805
800.633.9876 714.491.1500
FAX 714.491.1517
Extron Electronics, Asia
135 Joo Seng Rd. #04-01
PM Industrial Bldg., Singapore 368363
+800.7339.8766 +65.6383.4400
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Beeldschermweg 6C
3821 AH Amersfoort, The Netherlands
+800.3987.6673 +31.33.453.4040
FAX +31.33.453.4050
Extron Electronics, Japan
Kyodo Building, 16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
Japan
+81.3.3511.7655 FAX +81.3.3511.7656
3
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