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DSPPA DSP903 4.5 Inch Fireproof Ceiling Speaker with Transformer

The DSP903 is a 4.5-inch in-ceiling loudspeaker with a steel fire dome and a built-in 100 V / 70 V line transformer with selectable taps. It mounts in false ceilings with spring clips. It suits voice announcements and background music in corridors and rooms.
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DSPPA DSP903 4.5 Inch Fireproof Ceiling Speaker with Transformer

Product Details

Product Overview

The DSP903 is a 4.5-inch in-ceiling loudspeaker with a steel fire dome and a built-in 100 V / 70 V line transformer with selectable taps. It mounts in false ceilings with spring clips. It suits voice announcements and background music in corridors and rooms.

Model DSP903
Driver 4.5-inch full-range, paper cone
Rated power 3 W
Max power 6 W
Line input 70 V / 100 V
Taps (100 V line) 3 W, 6 W, 10 W
Taps (70 V line) 1.5 W, 3 W, 5 W
Sensitivity 91 ± 2 dB (1 m, 1 W)
Max SPL 97 dB (1 m)
Frequency response 250-16,000 Hz
Cutout size Ø155-158 mm
Dimensions 110 mm (H) x Ø174 mm
Weight 1.2 kg

Typical applications

  • Corridors and lobbies
  • Offices and meeting rooms
  • Hospital wards and hotel corridors
  • Paging and background music zones

Source: DSPPA official product page and official datasheet. Supplied in Saudi Arabia by AZEIDK with installation and technical support.

Technical Documents

Product Catalogue

View the product’s full specifications and technical information in the official catalogue.

Download Catalogue
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