Extron electronic SI 26CT specifications User’s Guide, Ceiling Speaker, Specifications

SI 26CT

User’s Guide Ceiling Speaker

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 bottom of the ceiling and trace the inside of it. Carefully cut out the ceiling material along the circle.

4

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.

Trace template. Cut Material

2

Remove the top cover to access the speaker connector. Attach the speaker wires to the 4-pole captive screw connector (supplied). Insert the 4-pole captive

screw plug into the connector on back of the speaker. Install the conduit and secure the connections.

5

Connect a secondary support line from the seismic tab to a secure support point. Set the rotary tap selector and install the speaker grille.

Seismic Tab &

Support Line

	Enlarged to
	Show Detail
	From
	Power
To Speaker	Amplifier
	Cover
	Conduit

		60W	30W
16
		V	15W
100		70		7.5W
15W	V			16
30W
	60W

Adjusting the Tap Selector

Specifications:

Acoustic & Electrical

Apply 4 pieces of black putty (supplied), equally spaced 90° apart, to the upper inside edge of the grille.

3

4-pole Captive

Screw Connector

Speaker type	2-way, low profile ceiling speaker with metal back 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, 60 W tap, half space
Nominal coverage angle	110° conical coverage
Nominal impedance	16 ohms
Crossover frequency	3.5 kHz
Rotary switch taps	70V: 60 W, 30 W, 15 W, 7.5 W, 16 ohms direct

Replace the top cover and tighten the screws. Insert the speaker through the bottom of the hole in the ceiling.

To Speakers

Power Amplifier Speaker 1 Speaker 2 Speaker 3

Parallel Hookup Wiring Diagram

	100V: null, 60 W, 30 W, 15 W, 16 ohms 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 16 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.

68-1065-01 Rev. B

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