Bosch LC1-UM24E8 Modular Ceiling Loudspeaker

Key Features

• 24W coaxial ceiling loudspeaker

• Excellent speech intelligibility and music reproduction

• EN 54-24 certified for voice alarm systems

• 70V / 100V line operation with multiple power taps

• Integrated circular metal grille

• Compatible with modular LC1 see-through mounting accessories

• Suitable for indoor public spaces

Technical Specifications

• Rated power: 24 W (24 / 12 / 6 / 3 W selectable)

• Sound pressure level (1 kHz, 1 m): 103 dB at rated power / 89 dB at 1 W

• Sound pressure level (1 kHz, 4 m): 91 dB at rated power / 77 dB at 1 W

• Frequency range (-10 dB): 55 Hz – 20 kHz

• Opening angle (-6 dB):

  • 180° at 1 kHz

  • 58° at 4 kHz

• Rated voltage: 70 V / 100 V

• Rated impedance:

  • 70 V: 24 W – 208 Ω, 12 W – 416 Ω, 6 W – 833 Ω, 3 W – 1667 Ω

  • 100 V: 24 W – 416 Ω, 12 W – 833 Ω, 6 W – 1667 Ω, 3 W – 3333 Ω

• Connector: 3-pole ceramic screw terminal block

Mechanical

• Driver: 6.5-inch coaxial (two-way)

• Diameter: 220 mm

• Maximum depth: 125 mm

• Material: Steel frame and metal grille

• Colour: White (RAL 9010)

• Weight: 1.75 kg

Certifications

• EN 54-24 (voice alarm systems)

• UL 1480 / UL 2043

• IEC / EN 62368-1

Shipping

• Shipping dimensions: 22 × 22 × 12.5 cm

• Shipping weight: 1.75 kg