Extron SF 228T Plus Ceiling Speaker Pair - Low & High Impedance — specification sheet
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Extron · SF 228T Plus · Speakers

Extron SF 228T Plus Ceiling Speaker Pair - Low & High Impedance

The Extron SF 228T Plus is a coaxial two-way ceiling tile speaker designed for professional audio installations. This pair features an 8-inch woofer and a 1.1-inch silk dome tweeter, supporting low impedance and 70V/100V systems. Procure.ae supplies this equipment to businesses, schools, hospitals, and government buyers across the UAE and MEA with quotation-based pricing.

The Extron SF 228T Plus delivers high-fidelity audio through a coaxial driver configuration featuring an 8-inch (203 mm) polypropylene cone woofer and a 1.1-inch (28 mm) silk dome tweeter. It supports low impedance, 70V, and 100V systems with selectable taps including 64 W, 32 W, 16 W, 8 W, and off positions. The frequency range spans from 47 Hz to 22 kHz at -10 dB, handling 90 W continuous pink noise power with a crossover point at 2.5 kHz.

Designed for suspended ceiling tiles, this unit fits standard US style openings measuring 610 mm x 610 mm. Each speaker weighs less than 20 pounds (9 kg) and includes two splicing connectors, cross bars, and a setup guide. It operates in temperatures from 0 to +50 °C and holds UL 2043 plenum rating for safe indoor deployment in commercial environments across the UAE.

Type
two-way in-ceiling loudspeaker
Weight
9 kg (<20 lbs) per speaker

Key features

01
Coaxial Driver Design
Features an 8-inch woofer and 1.1-inch silk dome tweeter for coaxial two-way sound reproduction.
02
Multi-Impedance Support
Compatible with low impedance, 70V, and 100V systems with selectable power taps from 8 W to 64 W.
03
Ceiling Mount Installation
Designed as a drop-in speaker for standard US style suspended ceiling tiles with included cross bars.
04
Plenum Rating Compliance
UL 2043 listed enclosure ensures safety and compliance for air-handling spaces in commercial buildings.
05
Wide Frequency Response
Provides audio coverage from 47 Hz to 22 kHz (-10 dB) with full-range power limiter protection.

Specifications

General
ModelSF 228T Plus
Typetwo-way in-ceiling loudspeaker
What's in the Box2 speakers, setup guide, splicing connectors, cross bars
Performance
Storage Conditions-40 to +70 °C (10% to 90% noncondensing)
Audio
Coverage Pattern95° conical coverage (1 kHz to 4 kHz)
Crossover Frequency2.5 kHz
Frequency Response47 Hz to 22 kHz (-10 dB); 63 Hz to 12.5 kHz (+/-3 dB)
Impedance8 ohms nominal per speaker
Max SPL104.9 dB at 1 m; 105.8 dB linear
Sensitivity89 dB SPL, 1 W, 1 m (half space)
Speaker Size8 inch woofer; 1.1 inch silk dome tweeter
Connectivity
Connector Typetwo 3-pole splicing connectors for input and loop-through
Input Voltage70V/100V line with taps; low impedance mode
Power
Power Capacity (W)90 W continuous pink noise; 180 W continuous program
Physical
Dimensions610 mm x 610 mm x 137 mm (2' x 2' x 5.41")
Materialpolypropylene woofer cone; silk dome tweeter; composite enclosure
Mountingceiling tile drop-in for US style suspended ceilings
Operating Temperature0 to +50 °C (10% to 90% noncondensing)
Weight9 kg (<20 lbs) per speaker
Compliance
CertificationsUL 2043, CAN/ULC-S142:16, UL 1480A, NFPA 90A, CE
Warranty5 years parts and labor
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This sheet is compiled from the product data held on procure.ae. For fully accurate and up-to-date figures, always refer to the manufacturer’s own specification sheet or datasheet for this model.

Specifications are provided by the manufacturer and may change without notice.

Pricing is quote-based. Contact Procure for current pricing and availability.

Delivery across the UAE and beyond, installation on request and manufacturer-backed warranty.

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