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  •   Ceiling speaker | 100V | 6W | 90dB | fire-resistant | Fireproof design with transformer | 4.5" speaker
      Ceiling speaker | 100V | 6W | 90dB | fire-resistant | Fireproof design with transformer | 4.5" speaker 1
      Ceiling speaker | 100V | 6W | 90dB | fire-resistant | Fireproof design with transformer | 4.5" speaker 2

    Ceiling speaker | 100V | 6W | 90dB | fire-resistant | Fireproof design with transformer | 4.5" speaker

    Code: DSP903II
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    Price 32.48 € VAT incl.
    ( 26.84 € VAT excl. )
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    Fire-resistant ceiling speaker designed for areas where clear voice reproduction and additional fire protection are essential. The model features an integrated 100V transformer, a fire-resistant housing, and is specifically created for work environments where safety and reliability are top priorities: public spaces, corridors, stairwells, technical rooms, hospitals, schools, and administrative buildings.

    The speaker offers a sensitivity of 90 ± 2 dB, an SPL of 97 ± 2 dB, and a frequency range of 180 Hz to 16 kHz, making it ideal for voice announcements and clear speech transmission. 

  • Product description

    Technical Specifications

    Manufacturer: DSPPA
    Model: DSP903II
    Power: 6W RMS
    System voltage: 100V
    Speaker size: 4.5"
    Max. SPL: 97 ± 2 dB
    Sensitivity: 90 ± 2 dB
    Frequency range: 180 Hz – 16 kHz
    Housing: Fireproof ABS plastic
    Grille: Metal
    Mounting: Spring clip
    Outer diameter: Ø ~150–160 mm
    Cut-out diameter: Ø ~130–140 mm
    Depth: ~100–110 mm

    Features

    Fire-resistant design – fireproof construction for safe environments.

    Integrated 100V transformer – professional line system.

    4.5" paper cone – optimized for voice reproduction.

    90 ± 2 dB sensitivity – clear and bright sound.

    97 ± 2 dB max SPL – sufficient audibility in noisy areas.

    180 Hz – 16 kHz frequency range – ideal for speech.

    Compact enclosure – lightweight and quick to install.

    Fireproof plastic + metal grille – durable and safe solution.

    Applications

    For home users: Suitable for stairwells, garages, corridors, basement rooms where safety and clear voice reproduction are required.
    For engineers/designers: Fire-resistant – ideal for facilities with strict fire-safety requirements. Stable performance in 100V line systems. Suitable for evacuation and information announcement systems.
    For electricians/installers: Fast installation with spring-clip mounts. Compact size fits tight ceiling spaces. Durable metal/grill and fireproof plastic housing.

    Pros

    Fireproof design – top-level safety

    Compact and lightweight

    Clear voice reproduction

    Wide compatibility with 100V systems

    Durable metal grille

    Cons

    Limited for music (optimized for voice)

    100V only (no 70V / 4–16Ω mode) 

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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