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LBC3951/11

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LBC3951/11

LBC3951/11

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A compact yet powerful 6 W ceiling loudspeaker with a perforated metal grille and a very wide opening angle. IPx4 water protected from the front, so it suits humid areas. Integral clips, 145 mm cut-out, push-in loop-through terminal. Scroll down for details.

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  • Brand - BOSCH
BOSCH
BOSCH

Global leader in Public Address, Voice Evacuation and Conference Systems.

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BOSCH
BOSCH

Global leader in Public Address, Voice Evacuation and Conference Systems.

Ceiling Loudspeaker

LBC3951/11

Compact IPx4 ceiling loudspeaker, 6W

6 / 3 / 1.5 / 0.75 W | Perforated metal grille | 88 dB SPL (1W, 1m) | 60 Hz to 18 kHz | Non-EN54

Bosch LBC3951/11 Product Highlights

Explore the key capabilities of the Bosch LBC3951/11 ceiling loudspeaker.

IPx4 Splash-Proof

Water protected from the front, for humid environments.

Compact yet Powerful

A 4-inch driver in a 160 mm housing, 88 dB at 1 W.

Very Wide Coverage

Opening angle 170° / 80°, 60 Hz to 18 kHz.

Integral Clips

Clips hold it in a 145 mm cut-out; no special tools.

Push-In Terminal

Push-type terminals with loop-through; colour-coded tap wires.

Four Power Taps

Delivered at 6 W; 3, 1.5 or 0.75 W by moving one wire.

Key specs

  • Taps 6 / 3 / 1.5 / 0.75 W (100 V), max 9 W
  • 96 / 88 dB SPL at 6 W / 1 W (1 kHz, 1 m)
  • 60 Hz to 18 kHz
  • Opening angle 170° / 80°
  • 145 mm cut-out, ceilings 9 to 25 mm
  • Ø 160 mm, depth 95 mm, 690 g
  • Perforated metal grille, 4-inch driver
  • 2-pole push-in terminal, loop-through
  • IPx4 from the front
  • RAL 9010 white
  • Not EN54-24
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Electrical

Maximum power

9 W

Rated power

6 / 3 / 1.5 / 0.75 W

Sound pressure level

at 6 W / 1 W (1 kHz, 1 m)

96 dB / 88 dB (SPL)

Sound pressure level

at 6 W / 1 W (4 kHz, 1 m)

99 dB / 91 dB (SPL)

Effective frequency range (-10 dB)

60 Hz to 18 kHz

Opening angle at 1 kHz/4 kHz (-6 dB)

170° / 80°

Rated voltage

100 V

Rated impedance

1667 ohm

Connector

2-pole push-in terminal block

Mechanical

Diameter

160 mm (6.30 inch)

Maximum depth

95 mm (3.74 inch)

Ceiling thickness

9 to 25 mm (0.35 to 0.98 inch)

Mounting cut-out

145 mm (5.71 inch)

Speaker diameter

101.6 mm (4 in)

Weight

690 g (1.52 lb)

Color

White (RAL 9010)

Magnet weight

101 g (3.57 oz)

Environmental

Operating temperature

-25 ºC to +55 ºC (-13 ºF to +131 ºF)

Storage temperature

-40 ºC to +70 ºC (-40 ºF to +158 ºF)

Relative humidity 

<95%

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