Extron electronic Speaker SI 26CT User Manual

SI 26CT  
Ceiling Speaker  
User’s Guide  
Frame Construction Ceiling Installation  
4
1
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.  
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.  
CAUTION  
Do not over tighten screws.  
5
Trace template.  
Cut Material  
Connect a secondary support line from the seismic tab to a  
secure support point. Set the rotary tap selector and install  
the speaker grille.  
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.  
Seismic Tab &  
Support Line  
Enlarged to  
Show Detail  
From  
Power  
To Speaker  
Amplifier  
Cover  
Apply 4 pieces of black  
Adjusting the Tap Selector  
putty (supplied), equally  
spaced 90° apart, to the  
upper inside edge of the  
grille.  
Conduit  
Specifications:  
Acoustic & Electrical  
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  
4-pole Captive  
Screw Connector  
Crossover frequency................... 3.5 kHz  
3
Rotary switch taps....................  
70V: 60 W, 30 W, 15 W, 7.5 W, 16 ohms direct  
100V: null, 60 W, 30 W, 15 W, 16 ohms direct  
Replace the top cover and tighten the screws.  
Insert the speaker through the bottom of the hole in  
the ceiling.  
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  
To Speakers  
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  
Speaker 1  
Speaker 2  
Speaker 3  
Power Amplifier  
Listings ........................................ UL 2043, UL1480  
Compliances ................................ CE, NFPA90, NFPA70A  
Warranty ....................................... 5 years parts and labor  
Parallel Hookup Wiring Diagram  
NOTE: All nominal levels are at 10%.  
NOTE: Specifications are subject to change without notice.  
68-1065-01 Rev. B  
06 06  
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