Sound spheres are pendant sound projectors designed to be suspended from the ceiling by their connecting cables. Their excellent sound spread makes them ideal for use in buildings with high ceilings, such as hypermarkets and superstores.

The LS1‐UC20E‐1-US is a powerful 20 W pendant sphere loudspeaker, intended for high quality speech and music reproduction. The state‐of‐the‐art design is matched to both modern and traditional style environments. The loudspeaker is suitable for use in voice evacuation systems. Voice alarm loudspeakers are specifically designed for use in buildings where performance of systems for verbal communication announcements is governed by regulations. The LS1‐UC20E‐1-US is designed for such systems. It is EN 54‐24 certified and compliant with BS 5839‐8 and EN 60849.

This loudspeaker has built‐in protection to ensure that, in the event of a fire, damage to the loudspeaker does not result in failure of the circuit to which it is connected. In this way, system integrity is maintained; ensuring loudspeakers in other areas can still be used to inform people of the situation. The loudspeaker is supplied with a ceramic terminal block and thermal fuse. The use of a high‐quality driver in combination with advanced filtering, have resulted in a very natural sound reproduction with excellent bass response.

All Bosch loudspeakers are designed to withstand operating at their rated power for 100 continuous 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 improved reliability under extreme conditions, leading to higher customer satisfaction, longer operating life, and lessons the chance of failure or performance deterioration.

• Superb speech and music reproduction
• 5 m connection cable
• Provision for optional safety cord
• Water and dust protected to IP 65
• EN 54‑24 certified