The DSP5311EN is an EN54-certified fireproof surface-mounted ceiling speaker designed for indoor voice alarm and public address systems. It features a 6.5" full-range dual-cone driver with selectable 12W/6W/3W power taps for 100V line connection, delivering clear and intelligible sound. The ABS V0 flame-retardant enclosure and aluminium grille ensure durability and safety, while the ceramic connector and built-in thermal fuse provide reliable operation.
Model | DSP5311EN |
Standards | EN54-24:2008 Loudspeaker for voice alarm system for fire detection and fire alarm system |
Environmental 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 (12W – 6W – 3W) |
In-axis Freq. response (-10dB) | 230–16,000 Hz |
Sensitivity (@1m, 1W) | 89dB |
SPL max (@1m, Pmax) | 100dB |
Coverage angle (-6dB) | 180° (500 Hz), 95.6° (1 kHz), 116° (2 kHz), 48° (4 kHz), 35° (8 kHz) |
Directivity Index DI (dB) | -3.8 (500 Hz), 3.4 (1 kHz), 5.1 (2 kHz), 9.1 (4 kHz), 10.8 (8 kHz) |
Directivity Factor Q | 0.4 (500 Hz), 2.2 (1 kHz), 3.2 (2 kHz), 8.2 (4 kHz), 12 (8 kHz) |
Nominal/Music power | 12W/24W |
Nominal Impedance @ 1KHz | 833Ω (12W), 1.66kΩ (6W), 3.33kΩ (3W) |
Dimensions Ø - P | 203mm – 95mm |
Weight | 1.02kg |
Material | ABS V0 type, painted grid in aluminium |
Colour | White |
Connections | Ceramic connector and thermal fuse |
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