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The DSP2254EN is an EN54-certified fireproof ceiling speaker designed for indoor voice alarm and public address systems. Featuring a 6.5" full-range dual-cone driver with selectable 10W/5W/2.5W power taps for 100V line connection, it delivers clear and intelligible sound. The speaker is built with a steel fire dome and an aluminium protective grille for enhanced fire safety and durability. Equipped with a ceramic connector and built-in thermal fuse, it ensures reliable operation under demanding conditions.
Model | DSP2254EN |
Standards | EN54-24:2008 Loudspeaker for voice alarm system for fire detection and fire alarm system |
Environment Class EN54-24 | Type A, indoor applications |
IP rate protection (EN60529) | IP21C |
Way no. / Speaker type | 1-way dual cone, full range Ø165mm |
Transformer | 100V (10W – 5W – 2.5W) |
In-axis Freq. response (-10dB) | 350–18,000Hz |
Sensitivity (@1m, 1W) | 90dB |
SPL max (@1m, Pmax) | 100dB |
Coverage angle (-6dB) | 360° (500 Hz), 236° (1 kHz), 86° (2 kHz), 64° (4 kHz), 27° (8 kHz) |
Directivity Index DI (dB) | 2.6 (500 Hz), 3.3 (1 kHz), 7.1 (2 kHz), 8.5 (4 kHz), 10.8 (8 kHz) |
Directivity Factor Q | 1.8 (500 Hz), 2.2 (1 kHz), 5.2 (2 kHz), 7.0 (4 kHz), 12.0 (8 kHz) |
Nominal/Music power | 10W/20W |
Nominal Impedance @ 1kHz | 1kΩ (10W), 2kΩ (5W), 4kΩ (2.5W) |
Dimensions Ø - P | 200mm – 100mm |
Weight | 1.11kg |
Material | Steel dome, painted grid in aluminium |
Colour | White and red |
Connections | Ceramic connector and thermal fuse |
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