Transcript
SPEAKERS
SI 26CT TWO-WAY CEILING SPEAKERS WITH 8" BACK CAN AND TRANSFORMER
A 1" (2.5 cm) pivoting ferrofluid-cooled, titanium-coated dome tweeter A 6.5" (16.5 cm) long-throw woofer with tuned bass reflex port A 8" (20.3 cm) deep metal back can for plenum environments A 16 ohm direct, 70 volt, and 100 volt operation A 5 position, behind-the-grille power selector A 75 watts continuous pink noise, 150 watts continuous program A Internal driver overload protection in direct 16 ohm position A Locking arms for quick ceiling installation A UL plenum rated A Includes C-ring & V-rail kit A 5 year parts and labor warranty
The Extron System INTEGRATOR® SI 26CT is a high power, two-way ceiling speaker featuring an 8" (20.3 cm) metal back can and a coaxial dual driver design with transformer. A long-throw woofer coupled to a pivoting dome tweeter delivers accurate voice and music reproduction, as well as wide angle sound distribution. This System INTEGRATOR speaker is ideally suited for overhead distributed audio applications for music and voice in conference rooms, lecture halls, auditoriums, and other high-ceiling venues requiring high power, plenum-rated ceiling speakers.
DESCRIPTION The Extron System INTEGRATOR SI 26CT is a high power, two-way ceiling speaker featuring a coaxial dual driver design, transformer, and an 8" (20.3 cm) metal back can. The SI 26CT is ideal for plenum installations in large classrooms, lecture halls, and auditoriums. A 6.5" (16.5 cm) longthrow woofer coupled to a 1" (2.5 cm) pivoting titanium-coated dome tweeter delivers accurate voice and music reproduction, as well as wide angle sound distribution. Special consideration is given to the crossover from the woofer to the tweeter, providing a smooth transition from low to mid frequencies. Voice reproduction from documentaries and live microphones is natural and clear sounding. Music reproduction is enhanced with the exceptional low-frequency response of the long-throw woofer. Bass is optimized using a tuned port for improved low-frequency response. The pivoting dome tweeter allows aiming of the mid and high frequencies for best area coverage, and matches the high power capability of the woofer with enhanced midrange and high-frequency response for high ceiling applications. The overall frequency range for the SI 26CT is 70 Hz to 20 kHz.
SPECIFICATIONS AUDIO/ACOUSTIC AND ELECTRICAL Speaker type Frequency range Power capacity Nominal sensitivity Nominal coverage angle Nominal impedance Crossover frequency Rotary switch taps Woofer Tweeter Overload protection
This System INTEGRATOR speaker is ideally suited for overhead distributed audio applications for music and voice in conference rooms, lecture halls, auditoriums, and other high-ceiling venues requiring high power, plenum-rated ceiling speakers.
Input connector
SI 26CT speakers are sold in pairs and include a 5 year parts and labor warranty.
Package Temperature/humidity
The SI 26CT offers both direct 16 ohm or 70/100 volt operation with a behind-the-grille, five position power selector switch. In the 16 ohm direct mode, an input power limiting protection circuit is included for preventing woofer and tweeter damage due to overdriving.
Mounting
For room balancing with 70/100 volt systems, the behind-the-grille power selector switch allows for 60, 30, 15, and 7.5 watt settings in 70 volt operation and 60, 30, and 15 watt settings for 100 volt operation. The SI 26CT features four locking arms for a fast and secure hard ceiling installation. C-ring and V-rail mounting hardware for installation in a suspended T-bar ceiling is included. The SI 26CT features a white grille and bezel that can be painted to match the architectural elements of the environment.
KEY FEATURES A 8" (20.3 cm) deep metal back can for plenum environments A 1" (2.5 cm) pivoting ferrofluid-cooled, titanium-coated dome tweeter
2-way ceiling speaker with metal back can 70 Hz to 20 kHz, -10 dB, half space 75 W continuous pink noise 150 W continuous program 89 dB SPL, 1 W @ 1 m, 16 ohms direct, half space 110˚ conical coverage 16 ohms 3.5 kHz 70V: 60 W, 30 W, 15 W, 7.5 W, 16 ohms direct 100 V: null, 60 W, 30 W, 15 W, 16 ohms direct (1) 6.5" (165 mm) polypropylene cone with moisture resistant coating (1) 1.0" (25 mm) titanium dome Full range power limiter with the 16 ohm direct input only, protecting the tweeter, woofer, and crossover (1) 5 mm captive screw connector, 4 pole for 1 input and 1 loop-through
GENERAL
Enclosure type Enclosure outer dimensions
Cutout dimensions Product weight Shipping weight Regulatory compliance Safety EMI/EMC Warranty NOTE: All nominal levels are at ±10%. Model SI 26CT
A 6.5" (16.5 cm) long-throw woofer with a tuned bass reflex port
2 speakers (1 pair) 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 Ceiling mountable with included hardware or optional mounting kit Metal back can; high-impact, fire-resistant (UL94V-0) plastic baffle/rim 8.3" H x 9.9" diameter (211 mm x 251 mm diameter) 7.5" (191 mm) from front of ceiling tile to back of rear enclosure 8.937" diameter (227 mm diameter) Single: 8.0 lbs (3.6 kg) Pair: 26 lbs (12 kg) with mounting kit package CE, UL 2043, UL1480 CE, NFPA90, NFPA70A 5 years parts and labor
Version Description Ceiling - 8" Back Can, Pair
Part number 42-070-03
For complete specifications, please go to www.extron.com Specifications are subject to change without notice.
A 16 ohm direct or 70/100 volt operation on a 5 position, behind-the-grille selector:
9.88" (25.1 cm) 8.39" (21.3 cm)
A - 16 ohm direct A - 70 volt: 60, 30, 15, and 7.5 watt selectable A - 100 volt: 60, 30, and 15 watt selectable
8.06" (20.5 cm)
7.66" (19.5 cm)
A Frequency range: 70 Hz to 20 kHz A 75 watts continuous pink noise, 150 watts continuous program A Internal driver overload protection in direct 16 ohm position
Front View
A 110° conical dispersion A Locking arms for quick ceiling installation
8.62" (21.9 cm)
A UL plenum rated A Includes C-ring & V-rail kit A Grille and bezel are available in white only and may be painted to match environment
(19.5 cm)
A 5 year parts and labor warranty (1.44 cm)
Rear View
Side View
0.57" (1.44 cm)
SI 26CT RESPONSE GRAPHS – FREQUENCY AND IMPEDANCE
SPL VS. FREQUENCY – 1 WATT @ 1 METER RESPONSE, HALF SPACE (2π) 100
dBSPL
90
80
70
60
50
40 20 Hz
50
100
200
500
1K
2K
5K
10K
20K
SPL VS. FREQUENCY – HORIZONTAL OFF-AXIS RESPONSE, HALF SPACE (2π)
100
dBSPL
90
80
70
60
0 Degrees 10 Degrees 20 Degrees 30 Degrees 40 Degrees
50
40 20 Hz
50
100
200
500
1K
2K
5K
10K
20K
100
200
500
1K
2K
5K
10K
20K
IMPEDANCE VS. FREQUENCY 50
Ohms
40
20
10
5 20 Hz
50
SI 26CT POLAR GRAPHS – 1/3 OCTAVE, HORIZONTAL
100.00 Hz
160.00 Hz
250.00 Hz
125.00 Hz
200.00 Hz
315.00 Hz
0 Deg 30
30
-30
-10 -60
-20
60
-30
90
-90
90
-90
100 Hz - 200 Hz
250 Hz - 500 Hz
630.00 Hz
1.00 kHz
1.60 kHz
800.00 Hz
1.25 kHz
2.00 kHz
0 Deg 30
-30
60
-60
-20
-30
-30
90
-90
90
-90
1.6 kHz - 3.15 kHz
630 Hz - 1.25 kHz
4.00 kHz
6.30 kHz
10.00 kHz
5.00 kHz
8.00 kHz
12.50 kHz
0 Deg
16.00 kHz 20.00 kHz 0 Deg
30
-30
-10 -20
-30
-10 -60
-20
60
3.15 kHz 0
-10
0
2.50 kHz 0 Deg
0
30
-60
-20
-30
60
-30
0
-10
30
500.00 Hz 0 Deg
0
60
400.00 Hz
-30
0 -10
-60
60
-30
-60
-20 -30
90
-90
90
-90
10 kHz - 20 kHz
4 kHz - 8 kHz
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UNITED STATES
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MIDDLE EAST
+800.633.9876
+800.3987.6673
+800.7339.8766
+971.4.299.1800
Inside USA/Canada
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+1.714.491.1500
+31.33.453.4040
+65.6383.4400
© 2013 Extron Electronics. All rights reserved. All trademarks mentioned are the property of their respective owners. Prices and speciications subject to change without notice.
12-2013 68-1157-01 REV. C1 Letter - English - NP
