The Extron System INTEGRATOR® "SI" Speaker Series is a family of speakers designed for small and large classrooms, conference rooms, lecture halls, and auditoriums. System INTEGRATOR speakers are optimized for smooth, accurate reproduction of music and voice for both low and high power delivery applications. Extron SI speakers sound great and meet the high product quality standards for which we are known.

The SI Series is designed to integrate easily with Extron MPA Mini Power Amplifiers, XTRA™ Series Power Amplifiers, MediaLink® Switchers and Controllers, wallplates, and cables. Together, they form an all-in-one source for complete A/V systems from Extron.

The SI Series speakers are the result of a two-year research and design effort at Extron with extensive testing and listening. In particular, design efforts were focused on the crossover circuitry, from bass through midrange to the high frequencies. Special attention was given to match the dome tweeter to the woofer for a smooth, flat response with a minimum of phase shift. The surface mount models feature an Extron exclusive conical horn design that is coupled to the tweeter. The conical horn design virtually eliminates phase shift that would otherwise result in a harsh and peaked tonal quality caused by frequency cancellation.

Extron System INTEGRATOR Speaker Series includes the following:

• Surface mount speakers with exclusive V-Lock® mounting system
• Ceiling speakers with or without low profile, plenum-rated back cans
• In-wall speakers with open back, infinite baffle designs

All SI speakers are sold in pairs and have a five-year parts and labor warranty.

Extron Surface Mount Speakers

The System INTEGRATOR SI 3, SI 26, and SI 28 are surface mount speakers designed to deliver optimized, high quality sound for a wide variety of applications. They are typically installed in classrooms, conference rooms and boardrooms when a surface mount speaker is preferred over a ceiling or in-wall device. They are also the perfect choice for restaurants, retail establishments, health clubs, themed entertainment venues, airports and convention centers or any other applications where high quality foreground/background music and paging are required.

SI 3

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. The full-range driver and an Extron exclusive conical baffle work together to ensure accurate presentation of voice and music.

A compact surface mount speaker such as the SI 3 is a logical choice for small to medium classrooms and conference rooms where wall space is at a premium. To 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" (7.6 cm) full-range driver that is acoustically coupled to an Extron exclusive conical baffle. This baffle serves as a waveguide to help create a wide dispersion profile. 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.

The SI 3 features an incredibly wide frequency response of 75 Hz to 18 kHz, and 16 watts continuous pink noise and 32 watts continuous program capacity. An internal overload protection circuit prevents driver damage due to excessive input levels.

The SI 3 has a nominal impedance of 8 ohms. It is available with a black or white finish that can also be painted to match the environment.

SI 26 and SI 28

The SI 26 and SI 28 are two-way speaker designs with a ferrofluid-cooled, aluminum dome tweeter and a long-throw woofer with large magnets for solid low-frequency response. The tweeter is coupled to an Extron exclusive conical horn designed to minimize phase shift and deliver flat response over the mid- and high-frequency ranges. 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.

SI 28

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. An input power-limiting protection circuit is included for preventing woofer and tweeter damage due to overdriving. A weather-resistant housing and drivers make these speakers suitable for use in outdoor environments.

The SI 26 features a 6.5" woofer, a 1" dome tweeter, 75 watts continuous pink noise or 150 watts continuous program capacity, and frequency response from 70 Hz to 20 kHz.

The larger SI 28 features an 8" woofer, a 1" dome tweeter, 90 watts continuous pink noise or 180 watts continuous program capacity, and frequency response from 50 Hz to 20 kHz.

Both models have a nominal impedance of 8 ohms. They are available with a black or white finish that can also be painted to match the environment.

Extron V-Lock® Speaker Mounting System Included

Included with every SI 3, SI 26, and SI 28 speaker is V-Lock, a Patent Pending speaker mounting system. V-Lock greatly simplifies the process of mounting speakers onto walls while providing an effective means of preventing theft. All that is required is mounting the bracket onto the wall, sliding the speaker onto this bracket – in a manner similar to hanging a picture, and then positioning and locking the speaker into place through the front grille.

Extron's V-Lock system quickly and securely mounts an SI 3, SI 26, or SI 28 Speaker

Extron Ceiling Mount Speakers

SI 26CT SI 26X SI 3C LP SI 3CT LP

The System INTEGRATOR SI 3C LP, SI 3CT LP, SI 26CT, and SI 26X are designed for overhead audio applications for music and voice in small and large classrooms, conference rooms, and boardrooms. 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. The SI 26X and SI 26CT feature a two-way, coaxial dual driver design. Long-throw woofers are coupled to pivoting dome tweeters to deliver accurate voice and music reproduction, as well as wide angle sound dispersion for higher ceiling and power applications. In the SI 26X and SI 26CT, as with other Extron System INTEGRATOR® two-way speakers, special consideration is given to the crossover from the woofer to the tweeter, providing a smooth transition from low to mid and high 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 woofers. The pivoting dome tweeters allow aiming of the mid and high frequencies to optimize area coverage.

SI 3C LP & SI 3CT LP

The SI 3C LP and SI 3CT LP feature a 4" Low Profile metal back can for use in plenum ceilings. 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. The 3" full-range driver features an incredibly wide frequency response of 75 Hz to 17 KHz -10dB, 16 watts continuous pink noise or 32 watts continuous program capacity, and an extremely wide conical dispersion of 170˚. The SI 3C LP and SI 3CT LP are optimum for small to medium classrooms with lower ceilings and low to medium power requirements.

SI 3C LP & SI 3CT LP Conical
Baffle

The SI 3C LP offers 8 ohm operation. The SI 3CT LP offers both direct 8 ohm or 70/100 volt operation with a behind-the-grille, six position power selector switch. In 8 ohm operation, these speakers are designed for use with our MPA 152 Integrated Mini Power Amplifier in small to medium low ceiling classrooms requiring two to four wide dispersion speakers for maximum room coverage.

Many system designers desire 70/100 volt operation for multiple speakers and long speaker wire runs when the amplifier is remotely located. For small to medium classrooms, the SI 3CT LP is designed for use with the MPA 401 70 volt Integrated Mini Power Amplifier. For room balancing with 70/100 volt systems, the behind-the-grille power selector switch allows for 16, 8 ,4, 2, and 1 watt settings in 70 volt operation and 16, 8, 4, and 2 watt settings for 100 volt operation.

Four locking arms allow for a fast, secure hard ceiling installation. The SI 3C LP and SI 3CT LP include mounting hardware to facilitate installation in a suspended T-bar ceiling.

An input power-limiting protection circuit is included with the SI 3C LP for preventing distortion and driver damage due to overdriving.

SI 26CT

The SI 26CT features a high power design of 75 watts continuous pink noise or 150 watts continuous program capacity for use in larger classrooms, lecture halls, and auditoriums. The 6.5" long-throw woofer employs a tuned port for improved low frequency response. 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 from 70 Hz to 20 kHz.

In the 16 ohm direct mode, an input power limiting protection circuit is included for preventing distortion as well as potential woofer and tweeter damage if the speakers are overdriven.

For room balancing in 70/100 volt operation, the behind-the-grille, front-mounted five position selector allows for 60, 30, 15 and 7.5 watt power selection for 70 volt and 60, 30, and 15 watt for 100 volt installations.

The SI 26 CT is housed in an 8" metal back can for use in plenum environments and 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.

Backcan comparison of SI 26CT and SI 3C LP/SI 3CT LP

SI 26X

The SI 26X is an open back, two-way speaker for use in non-plenum airspace environments. The long-throw 6.5" woofer is specifically designed for infinite baffle environments, providing an efficient low-end response down to 50 Hz. The 3/4" titanium-coated dome tweeter pivots for aiming. Overall frequency response is 50 Hz to 20 kHz. 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.

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. Four locking arms allow for a fast, secure hard ceiling installation. An optional ceiling mount kit containing C-rings and V-rails may be used with soft ceiling tiles, if required.

Extron In-Wall Speakers

The SI 26W and SI 28W are designed for environments where delivery of stereo playback, also known as program audio is specified. By installing them into the walls, these speakers provide a low-profile appearance while also deterring theft. 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.

SI 28W

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 that voices are natural and clear sounding. Music reproduction is enhanced with the exceptional low-frequency response of the long-throw woofers. The pivoting dome tweeter allows aiming of the mid and high frequencies to optimize area coverage.

The SI 26W features a 6.5" long-throw woofer, a 3/4" dome tweeter, 30 watts continuous pink noise or 60 watts continuous program capacity, and a frequency response from 40 Hz to 20 kHz, and nominal impedance of 8 ohms.

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.