The Extron System INTEGRATOR® SI 26CT is a high power, two-way ceiling speaker featuring an 8″ ( cm) metal back can and a coaxial dual driver design. SI 26CT. Ceiling Speaker. User’s Guide. Cut Material. Remove the top cover to access the speaker connector. Attach the speaker wires to the 4-pole captive. Specifications — SI 26CT, cont’d. Extron SI 26CT Ceiling Speaker • Specifications. 2. 20 Hz. 1K. 2K. 5K. 10K. 20K.

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The SI 26 features a 6. The SI 26X is an open back, two-way speaker for use in non-plenum airspace environments. They are typically installed in classrooms, conference rooms and boardrooms when a surface mount speaker is preferred over a ceiling or in-wall device. Extronn address the issue of beaming in the midrange and high frequencies that can be found in a small, compact speaker, the SI 3 has been designed with a 3″ 7.

The SI 28W features an 8″ long-throw woofer, a 1″ dome tweeter, 35 watts continuous pink noise or 70 watts continuous program capacity, a frequency response from 30 Hz to 20 kHz, and a nominal impedance of 8 ohms.

The SI 26CT features a high power design of 75 watts continuous pink noise or watts continuous program capacity for use in larger classrooms, lecture halls, and auditoriums. The pivoting dome tweeter allows aiming of the mid and high frequencies to optimize area coverage. Voice reproduction from documentaries and live microphones is natural and clear sounding. With high power capability of 25 watts continuous pink noise or 50 watts continuous program capacity, the SI 26X is an ideal choice for great sound in moderate to high ceiling applications.

A 1″ pivoting ferrofluid-cooled, titanium-coated dome tweeter matches the high power capability of the woofer with enhanced midrange and high frequency response for high ceiling applications.

Overall frequency response is ei 70 Hz to 20 kHz. The SI 26 and SI 28 are two-way speaker designs with a exgron, aluminum dome tweeter and a long-throw woofer with large magnets for solid low-frequency sii. By installing them into the extrn, these speakers provide a low-profile appearance etron also deterring theft. The SI 26X is designed for 8 ohm direct connection to small or large audio power amplifiers, and may be connected for series or parallel operation.


Please enter a valid e-mail address. Long-throw woofers are coupled to pivoting dome tweeters to deliver accurate voice and music reproduction, as well as wide angle sound dispersion rxtron higher ceiling and power applications.

Each speaker has been designed to meet the needs of specific application requirements. The SI 3C LP and SI 3CT LP have a single full-range driver featuring a very wide dispersion pattern and full-range frequency response specifically for small to medium classrooms and conference rooms with lower ceilings and lower power requirements.

Extron Electronics SI 26ct (pair) Ceiling Speakers | eBay

An internal overload protection circuit prevents driver damage due to excessive input levels. The SI 26 and SI 28 incorporate a precision engineered crossover design that assures a smooth transition from bass to midrange and high frequencies, delivering optimum voice and music reproduction. Please try again later.

The SI 3 has a nominal impedance of 8 ohms. Your feedback has been submitted. The larger SI 28 features an 8″ woofer, a 1″ dome tweeter, 90 watts continuous pink noise or watts continuous program capacity, and frequency response from 50 Hz to 20 kHz. In particular, design efforts were focused on the crossover circuitry, from bass through midrange to the high frequencies. C-ring and V-rail mounting hardware for installation in a suspended T-bar ceiling is included.

Special attention was given to match the dome tweeter to the woofer for a smooth, flat response with a minimum of phase shift.

The pivoting dome tweeters allow aiming of the mid and high frequencies to optimize area coverage. The conical horn design virtually eliminates phase 26cr that would otherwise result in a harsh and peaked tonal quality caused by frequency cancellation. The SI Series speakers are the result of a two-year research and design effort at Extron with extensive testing and listening. They are two-way designs featuring a ferrofluid-cooled, titanium-coated dome tweeter and a long-throw woofer in a vertically stacked arrangement to deliver balanced voice and music reproduction.

IP Link Control Processors. An optional ceiling mount kit extroj C-rings and V-rails may be used with soft ceiling tiles, if required. Both models have a nominal impedance of 8 ohms. The SI 26W and SI 28W are designed for environments where delivery of stereo playback, also known as program audio is specified.


The surface mount models feature an Extron exclusive conical horn design that is coupled to the tweeter. A weather-resistant housing and drivers make these speakers suitable for use in outdoor environments. With this very broad conical spreading of the mid and high frequencies, two SI 3 speakers in a small to medium classroom should ensure consistent volume levels for everyone while delivering increased intelligibility and accurate music reproduction.

Pair of Extron SI 26ct Two-way High Power Ceiling Speakers 70/100v SI26CT

With this new conical horn design, harsh tonal qualities due to cancellation in portions of the frequency range caused by phase shifting are all but eliminated.

The low profile speaker is an excellent choice for ceiling installations with constrained or problematic above-the-ceiling tile issues such as air handling units or sprinkler piping. Extrpn reproduction is enhanced with the exceptional low-frequency response of the long-throw woofers.

They are available with a black or white finish that can also be painted to match the environment. The SI 3 is a surface mount speaker that is compact in size, yet delivers surprisingly wide, smooth frequency response for faithful sound reproduction of a wide range of audio material.

An input power-limiting protection circuit is included for preventing woofer and tweeter damage due to overdriving. How would zi rate your overall experience on the website? The SI 3 features an extro wide frequency response of 75 Hz to 18 kHz, and 16 watts continuous pink noise and 32 watts continuous program capacity.

These in-wall speakers feature a proprietary crossover design from the woofer to the dome tweeter, to provide a smooth transition from low to mid and high frequencies, so exrton voices are natural and clear sounding.