Extron electronic SF 228T manual Introduction, About this User Guide, Features

Introduction

About this User Guide

This user guide contains information about the Extron SF 228T 2-way ceiling speakers.

The SF 228T features a low profile design that houses an 8-inch woofer and 1-inch dome tweeter and has the appearance of a standard ventilation grill. All drivers and components above the ceiling are hidden behind the grill.

The SF 228T is designed for use in plenum rated ceiling spaces and can be mounted into a standard 2 feet x 2 feet or 2 feet x 4 feet (with supplied cross bars) false ceiling tile space on a T-bar grid, or, a frame installed in solid ceilings.

Features

•Drop-in 2-way speakers for suspended ceilings.

•UL-2043 plenum rated enclosure.

•An 8-inch, (20.3 cm), full range woofer provides extended low frequency response.

•A 1-inch, (2.5 cm), dome tweeter provides extended high frequency response.

•The white perforated grille matches the appearance of air conditioning vents.

•8 ohm direct or 70/100 Volt operation with 32, 16, 8, 4, and 2 watt selectable power taps accessed with speaker wiring connections inside the rear panel.

•Frequency response of 50 Hz to 20 kHz.

•60 watts continuous pink noise, 120 watts continuous program rated.

•90° conical coverage.

•Low profile enclosure for plenum environments.

•5 year parts and labor warranty.

SF 228T Speaker System • Introduction 1