Page 1
SI 26CT
User’s Guide
Frame Construction Ceiling Installation
Ceiling Speaker
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 the inside
of it. Carefully cut out the ceiling material along the circle.
Trace template.
2
Remove the grill from the speaker.
3
Remove the top cover to access the speaker connector.
Attach the speaker wires to the 4-pole captive screw
connector. Use red for the positive (+) wire and black for
the negative (-) wire. Insert the 4-pole captive screw plug
into the connector on back of the speaker. Install the
conduit and secure the connections.
Inlarged to
Subsequence
To
Speaker
show Detail
Cover
4
Replace the top cover and tighten the screws.
Insert the speaker through the bottom of the hole in
the ceiling.
Power Amplifier
Speaker 1 Speaker 2 Speaker 3
Parallel Hookup Wiring Diagram
Cut Material
From
Power
Amplifier
Conduit
4-pole Captive
Screw Connector
To Subsequence
Speakers
5
Loosen the four screws on the front baffle (counter
clockwise) 1/2 turn. Then tighten the screws (clockwise)
until the dog legs clamp the speaker to the ceiling.
CAUTION
Do not over tighten screws.
6
Connect a secondary support line from the seismic tab to a
secure support point. Install the speaker grill.
Seismic Tab &
Support Line
60W
30W
16
15W
70 V
100 V
15W
Adjusting the Tap Selector.
Specifications:
Acoustic & Electrical
Speaker type.................................. 2-way, low profile ceiling speaker with metal can
Frequency range........................... 70 Hz to 20 kHz, -10 dB, half space
Power capacity.............................. 150 W continuous program
75 W continuous pink noise
Nominal sensitivity...................... 89 dB, 1 W, 1 m, 80 W tap half space
Nominal coverage........................ 110° conical coverage
Nominal impedance .................... 16 ohms
Crossover frequency................... 3.5 kHz
Rotarary switch taps.................... 70V: 60 W, 30 W, 15 W, 7.5 W, 16 ohm direct
100V: null, 60 W, 30 W, 15 W, 16 ohm direct
Woofer........................................... 6.5" (165 mm) polypropylene cone
with moisture resistant coating
Tweeter.......................................... 1.0" (25 mm) titanium dome
Overload protection....................... Full range power limiter with the 8 ohm direct input
only, protecting the tweeter, woofer, and crossover
General
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
Listings ........................................ UL 2043, UL1480
Compliances ................................ CE, NFPA90, NFPA70A
Warranty ....................................... 5 years parts and labor
NOTE: All nominal levels are at ±10%.
NOTE: Specifications are subject to change without notice.
7.5W
16
30W
60W
Apply 4 pieces
(supplied) of
black putty.
68-1065-01 A
Printed in the USA
06 05
Page 2
User’s Guide
Suspended Ceiling Installation
SI 26CT
Ceiling Speaker
1
Remove the ceiling tile where the speaker is to be installed.
2
Cut the hole in the tile. See step 1 of the frame construction
ceiling section on back.
3
Remove the grill from the speaker.
4
Bring the speaker cable through the hole of the cut tile,
then reinstall the tile.
5
Remove the adjacent tile. Place 2 V-rails and 1 C-ring
across the tile where speaker is to be installed. Insert the
speaker through the bottom of the hole in the ceiling tile.
C-ring
V-rail
6
Connect the wires to the speaker terminal clips (as in step 3
on back).
7
Loosen the four screws on the front baffle (counter
clockwise) 1/2 turn. Then tighten the screws (clockwise)
until the dog legs clamp the speaker to the ceiling.
CAUTION
Do not over-tighten screws!
8
Connect a secondary support line from the seismic tab
to a secure support point (see back).
9
Apply 4 pieces (supplied) of black putty (see back).
Install the speaker grill.
Painting the Speaker Baffle
Tear along the smaller perforated line of the cutout
template, marked as paint shield. Push it into the front
baffle of the speaker. Paint the front. Remove the paint
shield after the paint has dried.
Packaging
Application diagram:
PC
VGA w/
Audio Cable
DVD/VCR Combo
Composite
Audio RCA
Variable
REMOTE
10V
INPUTS
VOL/MUTE
(MONO)
L
POWER
R
12V
3A MAX
Projector
Extron
SI 26CT
Two-way Ceiling
Speakers
MPA 181T
LISTED
1T23
I.T.E.
USUS
COM 70V
OUTPUTS
CC
70V
R
4/8 Ohms
(MONO)
L
Extron
MPA 181T
Mini Power Amplifier
MUTE
VCM 100
VOLUME
Extron
VCM 100 AAP
Volume/Mute Controller
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