The Beta3 BS4002 Aluminium Public Address Speaker is a compact, professional-grade PA speaker designed for clear voice announcements and smooth background music in commercial and public spaces. Built with a high-quality aluminium alloy cabinet, it offers excellent durability, heat resistance, and long-term reliability, making it suitable for continuous daily use. Featuring a 4-inch long-throw low-frequency driver and a 20 mm high-frequency dome tweeter delivers balanced sound with sharp vocal clarity. Its wide frequency response of 80 Hz to 20 kHz ensures that announcements remain crisp and easily understandable, even in noisy environments. Q1. Is the Beta3 BS4002 suitable for schools and offices?A-1 Yes, it is ideal for schools, offices, hospitals, and public buildings due to its clear voice output. Q2. Can this speaker be used in large PA systems?A-2 Yes, it supports 70V/100V/120V constant voltage systems, making it suitable for multi-speaker installations. Q3. Is it good for music playback?A-3 It is best suited for speech and light background music rather than high-bass music. Q4. Is the aluminium body better than plastic speakers?A-4 Yes, aluminium cabinets are more durable, heat-resistant, and longer-lasting. Q5. Can it run continuously for long hours?A-5 Yes, it is designed for continuous operation in professional PA environments. Specifications Model Beta3 BS4002 Speaker Type Aluminium Public Address / PA Speaker System Design Two-Way Full Range PA Speaker Low-Frequency Driver 1 × 4″ long-throw LF driver High-Frequency Driver 1 × 20 mm soft dome HF driver Frequency Response (-3 dB) 80 Hz – 20 kHz Maximum SPL @ 1 m 100 dB (Continuous) / 106 dB (Peak) Sensitivity (1 W / 1 m) 87 dB Power Handling (RMS) 20 W Power Handling (Music) 40 W Nominal Impedance 6 Ω Constant Voltage Operation 70 V / 100 V / 120 V Input Connector Push-terminal Cabinet Material Aluminum alloy with durable coating Grille Powder-coated protective metal grille Colour Black Dimensions (W × D × H) 185 × 105 × 110 mm Net Weight Approx. 2.15 kg
