Bosch Ceiling Speaker LBC 3090/01

Bosch Ceiling Speaker LBC 3090/01 AUDIO SYSTEMS
BOSCH LBC 3090/01 ลำโพง Ceiling Loudspeaker 
  • Suitable for speech and music reproduction
  • Increased sensitivity
  • Flush-mounting in ceiling cavity
  • Easy to install
  • Protective dust cover
  • Optional certified fire dome
  • Simple power setting
  • Matching surface mounting box
  • Comply with international safety regulations
Specification
Maximum power 9 W
Rated power 6 / 3 / 1.5 W
Sound pressure levelat 6 W / 1 W (1 kHz, 1 m) 99 dB / 91 dB (SPL)
Sound pressure levelat 6 W / 1 W (4 kHz, 1 m) 103 dB / 95 dB (SPL)
Effective frequency range (-10 dB) 70 Hz to 18 kHz
Opening angle at 1 kHz/4 kHz (-6 dB) 160° / 55°
Rated voltage 100 V
Rated impedance 1667 ohm
Connector 2-pole push-in terminal block
Diameter 210 mm (8.3 in)
Maximum depth 88 mm (3.5 in)
Mounting cut-out 182 + 5 mm (7.2 in)
Speaker diameter 152.4 mm (6 in)
Weight 1.1 kg (2.4 lb)
Color White (RAL 9010)