The Bosch LBD3921-D is a high-quality 24W column speaker designed for crystal-clear speech and music in commercial and public spaces. Perfect for offices, schools, auditoriums, hotels, retail shops, and conference rooms across India, this sleek black loudspeaker combines powerful sound, wide coverage, and easy installation in one durable package. With its adjustable power taps (24W, 12W, 6W) and 100V line compatibility, ensures even sound distribution in any room size. Its compact design and swivel wall-mount bracket make it easy to integrate into your space without compromising on style or performance. 1. What is the power rating of the Bosch LBD3921-D?A-1 It supports 24 W maximum power, with selectable taps of 24 W, 12 W, or 6 W for flexible usage. 2. Can this speaker be used outdoors?A-2 Yes, it is suitable for semi-outdoor areas, provided it is not exposed directly to rain or extreme weather. 3. How easy is installation?A-3 It comes with a swivel wall-mount bracket, making it quick and easy to install on walls or columns. 4. What type of connector does it use?A-4 It uses 4-pole push-in terminals for secure and hassle-free connections. 5. Which areas is this speaker ideal for?A-5 It is perfect for offices, schools, hospitals, auditoriums, retail shops, and other commercial spaces across India. Specifications Model Bosch LBD3921‑D Speaker Type Column / Cabinet Loudspeaker Rated Power 24 W (Selectable taps: 24 W / 12 W / 6 W) Rated Input Voltage 100 V line Impedance ~417 Ω at 100 V line Connector Type 4‑pole push-in terminals Frequency Range (-10 dB) 150 Hz – 15 kHz Sensitivity ~91.3 dB SPL (1 W, 1 m, 1 kHz octave) Sound Pressure Level ~104 dB @ 6 W / ~91.3 dB @ 1 W (1 kHz, 1 m) Horizontal Coverage (-6 dB) ~206° @ 1 kHz, ~68° @ 4 kHz Vertical Coverage (-6 dB) ~36° @ 1 kHz, ~9° @ 4 kHz Dimensions (H × W × D) 849 × 151 × 127 mm Weight ~4.9 kg Colour Black Mounting Swivel wall-mount bracket supplied Operating Temperature -5 °C to 55 °C Storage Temperature -40 °C to 70 °C Ideal Use Offices, schools, auditoriums, hotels, retail stores, PA & background music
