The Bosch LCZ-UM20-IN is a 20-watt ceiling loudspeaker featuring a robust metal grille, designed for excellent speech and music reproduction. Its high sound pressure level makes it suitable for areas with high ceilings such as offices, retail stores, educational institutions, and hospitality venues.
 
⚙️ Key Specifications
Rated Power: 20W (selectable taps: 20W / 10W / 5W)
Sound Pressure Level (1 kHz, 1 m): 104 dB at 20W / 91 dB at 1W
Effective Frequency Range: 100 Hz to 15 kHz (-10 dB)
Opening Angle (-6 dB): 176° at 1 kHz / 44° at 4 kHz
Rated Impedance: 500 Ohm
Rated Input Voltage: 100V
Connector: 4-Pole Screw Terminal
Dimensions: Diameter: 240 mm; Cutout Diameter: 206 mm; Depth: 100 mm
Weight: 1.6 kg
Color: Off White
Operating Temperature: -5 °C to +55 °C
Storage Temperature: -40 °C to +70 °C
 
🛠️ Features
Excellent Audio Performance: Delivers clear speech and music reproduction.
High Sound Pressure Level: Ensures effective sound coverage in large spaces.
Easy Installation: Equipped with integral mounting clips for secure and straightforward ceiling installation.
Durable Construction: Features a perforated metal grille with an attractive off-white finish.
Adjustable Power Taps: Line matching transformer allows for full, half, and quarter power settings to suit various acoustic requirements.
Compliance: Tested for 100 hours at rated power in accordance with IEC 268-5 Power Handling Capacity (PHC) standards.