The Bosch LBC 3491/12 high-efficiency horn loudspeaker provides excellent speech reproduction and sound distribution for a wide scope of outdoor applications. They are ideal for sports grounds, parks, exhibitions, factories and swimming pools. The LBC 3491/12 is a 10W rectangular horn loudspeaker made from ABS.

The LBC 3491/12 is made for direct connection to a 100V line output and is finished in light grey (RAL 7035). The horn is water and dust protected and include a 100V transformer with taps on the primary winding to allow different power settings. Nominal full-power, half-power or quarter-power radiation (in 3 dB steps) can easily be selected by connecting the amplifier output to the appropriate tap. A 2 m four-core cable is fitted to the horns. Each core is a different color, and is connected to one of the primary taps on the transformer.

The horn loudspeakers are supplied complete with sturdy adjustable mounting brackets, allowing the sound beam to be accurately directed. Certifications and approvals All Bosch loudspeakers are designed to withstand operating at their rated power for 100 hours in accordance with IEC 268-5 Power Handling Capacity (PHC) standards. Bosch has also developed the Simulated Acoustical Feedback Exposure (SAFE) test to demonstrate that they can withstand two times their rated power for short durations. This ensures extra reliability under extreme conditions, leading to higher customer satisfaction, longer operating life, and much less chance of failure or performance deterioration.

• High-efficiency driver
• Up to 45W (max. power)
• Wide opening angle
• Excellent speech reproduction
• Simple power setting