Cutout Template

224 mm x 326 mm

(8.8” x 12.85”)

Paint Guard

SI 28W

User’s Guide

In-Wall Speaker

 

 

 

 

 

1

Determine speaker location.

Leave at least 1” clearance from the edge of the speaker

to the studs in all directions. Hold or tape template in location, make sure template is level. Trace along the inside of the template.

At least 1” from the stud.

Trace template.

2

Carefully cut a hole along the inside of the traced line.

Cut material.

3

Attach the speaker wires to the 2-pole captive screw plug. Use red for the positive (+) wire and black for the negative (-) wire. Insert the 2-pole captive screw plug into the 2-pole connector on the back of the speaker.

Specifications:

Acoustic & Electrical

Speaker type

2-way in-wall speaker

Frequency range

30 Hz to 20 kHz, -10 dB, half space

Power capacity

70 W continuous program,

4

Insert the speaker into the wall opening.

Loosen the six screws on the front baffle (counter clockwise) 1/2 turn. Then tighten the screws (clockwise) until the dog legs clamp the speaker to the wall.

5

Level speaker, position each wall clamp outward, and tighten each screw until snug.

Install dust shield to protect the speaker during ongoing construction.

CAUTION Do not over-tighten screws.

Dust Shield

6

Remove the dust shield, install the speaker grill.

Application diagram:

Projector

SI 28W

 

35 W continuous pink noise

Nominal sensitivity

89 dB SPL, 1 W, 1 m, half space

Nominal impedance

8 ohms

Crossover frequency

2.5 kHz

Woofer

8" (203 mm) polypropylene cone with

 

moisture resistant coating

Extron MLS 304SA

Two-way In-wall Speaker

Tweeter

1" (25 mm) titanium dome

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

Warranty

5 years parts and labor

NOTE: All nominal levels are at ±10%.

NOTE: Specifications are subject to change without notice.

MediaLink Switcher

Laptop

w/ Audio

VCR

PC

 

68-1102-01 Rev. A

08 07

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Extron electronic SI 28W specifications User’s Guide, In-Wall Speaker, Print at 100% Do Not Fit to Paper

SI 28W specifications

The Extron Electronic SI 28W is a powerful and versatile speaker designed to provide high-quality audio in a variety of environments, including classrooms, conference rooms, and auditoriums. The SI 28W is part of Extron's line of installation speakers, engineered to deliver exceptional sound performance while maintaining an elegant, unobtrusive appearance.

One of the main features of the SI 28W is its 2-way design, which includes an 8-inch woofer and a high-frequency driver. This combination allows for excellent audio reproduction across a wide frequency range, ensuring that both low and high frequencies are rendered with clarity and depth. The speaker is capable of handling a power output of up to 200 watts, making it suitable for larger spaces that require strong sound reinforcement.

In addition to its sound capabilities, the SI 28W incorporates several advanced technologies that enhance its performance. The speaker features a built-in high-efficiency transformer with multiple power taps, allowing for flexibility in installation in low-impedance or 70/100-volt environments. This versatility makes the SI 28W a preferred choice for integrators looking to implement robust sound systems in commercial or educational settings.

Another noteworthy characteristic of the SI 28W is its wide dispersion pattern. The speaker is designed to provide even coverage across a wide listening area, reducing the likelihood of dead spots and ensuring that all listeners receive a balanced audio experience. This is particularly important in large rooms where seating arrangements may vary.

The SI 28W also emphasizes installation convenience. It comes equipped with a secure mounting system that allows for easy integration into various environments. The speaker's cabinet is constructed from durable materials, ensuring longevity and reliability in demanding settings. Furthermore, its sleek design and available finishes allow it to blend seamlessly with any decor.

Overall, the Extron Electronic SI 28W speaker stands out for its exceptional audio performance, flexible installation options, and user-friendly design. Whether used in educational institutions, corporate environments, or other venues requiring clear and impactful sound, the SI 28W delivers a reliable solution that consistently meets the demands of modern audio applications. With its combination of professional-grade sound quality and thoughtful engineering, the SI 28W exemplifies Extron's commitment to excellence in AV design.