Bosch LBC 3951/11 Ceiling Loudspeaker

Bosch LBC 3951/11 Ceiling Loudspeaker

Bosch LBC 3951/11 Ceiling Loudspeaker

B&H # BOLBC395111 MFR # F.01U.076.920
Special Order
Expected availability: 7-14 business days

Product Highlights

  • Compact Yet Powerful
  • Wide Opening Angle
  • Easy To Install
  • Splash-Waterproof

This item is noncancelable and nonreturnable.

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Bosch LBC 3951/11 overview

  • 1Description

The Bosch LBC 3951/11 Ceiling Loudspeaker provides powerful sound in a compact easy-to-install loudspeaker. The speaker's wide opening angle provides a maximum listening range.


The LBC 3951/11 has a perforated metal grille with a plastic surround, finished in an attractive off-white RAL color
The loudspeaker features a very wide opening angle, which means fewer units are required to cover a given area. The wide frequency range means better speech and music reproduction. The unit is supplied with a 100 V matching transformer with taps on the primary winding for full-power, half-power, quarter-power and eighth-power radiation
The loudspeaker (with special treated paper cone), is IPx4 water protected from the front and can be applied in humidity environments for example bathrooms, saunas, atriums and swimming pool areas

Certifications & Approvals

All plastic parts are manufactured from self-extinguishing high-impact ABS material (according to UL 94V0)
All Bosch loudspeakers are designed to withstand operating at their rated power for 100 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 extra reliability under extreme conditions, leading to higher customer satisfaction, longer operating life, and much less chance of failure or performance deterioration
UPC: 800549164795
In the Box
Bosch LBC 3951/11 Ceiling Loudspeaker
  • 100 V Matching Transformer
  • 3-Year Limited Warranty
  • Table of Contents
    • 1Description

    Bosch LBC 3951/11 specs

    Power Maximum: 9 W
    Rated: 6/3/1.5/0.75 W
    Sound Pressure 99 dB/91 dB

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

    Frequency Range 60 Hz to 18 kHz
    Angle of Coverage 170° / 80°
    Input Voltage 100 V
    Impedance 1667 ohm
    Transducer Woofer: 4.0" (10.16 cm)
    Dome Tweeter: 0.51" (1.3 mm)
    Connection 2-pole push-in terminal block
    General Attributes
    Color Off-white
    Certifications Europe CE
    Safety: EN 60065
    Water: EN 60529, IPx4
    Temperature / Humidity Operating Temperature: -13 to 131 ºF (-25 to 55 ºC)
    Storage Temperature: -40 to 158 ºF (-40 to 70 ºC )
    Relative Humidity: <95%
    Diameter Diameter: 6.3" (16.0 cm)
    Speaker Diameter: 4.0" (10.16 cm)
    Dimensions Maximum Depth: 3.74" (9.5 mm)
    Ceiling Thickness: 0.35 to 0.98" (9 to 25 mm)
    Weight 690 g (1.52 lb)
    Magnet Weight: 3.57 oz (101 g)
    Packaging Info
    Package Weight 1.7 lb
    Box Dimensions (LxWxH) 7.4 x 7.2 x 4.4"
    Note: Technical performance data according to IEC 60268-5

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