Bidirectional Aluminium Sound Projector Speaker

Overview

The BD 2412EN is crafted for installations where long-throw voice clarity, dual-direction coverage and durability are essential. With two 5″ full-range transducers in a cylindrical aluminium body and a true bidirectional radiation pattern, this speaker can cover two opposite zones simultaneously (for example, a corridor or open area). The EN 54-24 certification makes it suitable for voice alarm systems, while the IP66 rating ensures dependable operation in harsh indoor or outdoor environments.

Typical use-cases include factories, warehouses, transport hubs, large retail zones, covered walkways, and any space requiring reliable announcement coverage across opposing directions.

Key Features

• Dual 5″ full-range transducers for bidirectional coverage.

• 100 V constant-voltage line transformer with selectable power taps: 20 W, 10 W, 5 W.

• Sensitivity: 88 dB (system) enabling efficient coverage.

• Max SPL @ 1 m approx. 101 dB; system designed for clear intelligibility.

• Coverage angle: approx. 130° (each direction) providing wide dispersion.

• Aluminium body, grille and mounting bracket for durability and modern aesthetics.

• In/out ceramic terminal block and thermal fuse protection for safety and reliability.

• IP66 protection rating (dust tight & heavy rain/spray resistant) suitable for outdoor and harsh environments.

• Certified to EN 54-24 (fire & voice alarm installations) — making it compliant for many regulated systems.

• Colour: Grey RAL 7035 — blends unobtrusively into many industrial installations.

Installation & Use

The BD 2412EN is designed for easy mounting with included bracket and allows runs of speakers on 100 V lines with long-cable runs. The bidirectional output means a single unit can serve two zones or opposite areas, reducing install count. It’s equally at home indoors (manufacturing floors, warehouses) or outdoors (car parks, port facilities) thanks to its IP66 rating and robust aluminium construction.

It’s ideal when system designers need to cover two flanking zones, want simple 100 V line wiring, and require compliance with voice alarm standards.

Technical Specifications

Acoustic

• Transducers: 2 × 5″ full-range drivers.

• Frequency Response (-10 dB): 130 Hz – 20 kHz.

• Max SPL @ 1 m: approx. 101 dB.

• Max SPL @ 4 m: approx. 89 dB.

• System Sensitivity (1 W @ 4 m): 76 dB.

• Coverage Angle: approx. 130°.

Power & Connectivity

• Rated Power (RMS): 20 W.

• Peak Power Handling: approx. 80 W.

• 100 V Transformer Taps: 20 W (500 Ω) / 10 W (1 000 Ω) / 5 W (2 000 Ω).

• Input / Output: Ceramic terminal blocks (in/out).

• Protection: Thermal fuse.

Compliance & Protection

• Standard: EN 54-24 certified.

• IP Protection Grade: IP66.

Physical

• Cabinet Material: Aluminium.

• Grille Material: Aluminium.

• Colour: Grey (RAL 7035).

• Diameter: approx. 146 mm (5.75″).

• Depth: approx. 184 mm (7.24″).

• Weight: approx. 3.25 kg (7.17 lbs).