Bosch LBD3921-D 24W Cabinet Loudspeaker India

Name: Bosch LBD3921-D 24W Column-Style Cabinet Loudspeaker, Black
Brand: Bosch
Price: 4979.0 INR
Availability: InStock

Bosch LBD3921-D 24W column loudspeaker in black, front view

Bosch LBD3921-D · Cabinet Loudspeaker

24W Column Loudspeaker for Clear Speech in Larger Rooms

LBD3921-D Slim Black Column Speaker for 100V PA Systems Ideal for Halls, Worship & Lecture Rooms

24W Rated Power
100V Line Input
206 x 36 deg Coverage
849 mm Column Cabinet

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Product information

Bosch LBD3921-D is a 24W black column loudspeaker for 100V public address systems. Its tall, slim cabinet has a wide horizontal pattern and a very narrow vertical pattern, which directs sound at the audience and helps keep speech clear in halls, worship spaces and lecture rooms.

Key features

24W rated power: the highest rated power in the LBD cabinet family, for larger rooms.
100V line input: rated input voltage of 100 V for constant-voltage PA systems.
150 Hz to 15 kHz response: tuned for speech intelligibility and background music (-10 dB).
91.3 dB sensitivity: measured at 1 W, 1 m, 1 kHz octave.
Defined coverage: 206 x 36 degrees at 1 kHz and 68 x 9 degrees at 4 kHz (-6 dB): very narrow vertically to limit ceiling reflections.
Cabinet size: 849 x 151 x 127 mm and 4.9 kg.
Black finish: slim and discreet on a wall.
Indoor environmental range: operates from -5 to 55 degrees C and stores from -40 to 70 degrees C.

Ideal for

Halls, worship spaces, lecture rooms, dining areas and other larger rooms where speech intelligibility matters and the vertical spread of sound needs to be controlled.

Buy Bosch LBD3921-D in India from Universal AV Solutions with supply, installation and after-sales support across Delhi NCR and pan-India. Contact us for the latest price and a GST quotation.

Bosch LBD3921-D at a glance

Product type	Cabinet loudspeaker for public address
Rated power	24 W
Rated input voltage	100 V
Frequency range (-10 dB)	150 Hz to 15 kHz
Sensitivity (1 W, 1 m, 1 kHz)	91.3 dB
Coverage (-6 dB, 1 kHz)	206 x 36 deg
Coverage (-6 dB, 4 kHz)	68 x 9 deg
Dimensions (H x W x D)	849 x 151 x 127 mm
Weight	4.9 kg
Colour	Black

A column shape for controlled coverage

Bosch lists the LBD3921-D as a column loudspeaker. The tall cabinet narrows the vertical pattern so more energy reaches listeners and less bounces off ceilings and floors.

Well suited to speech in reverberant rooms.
Runs from a 100V PA amplifier or mixer amplifier.
Slim 151 mm width keeps the cabinet unobtrusive.

Bosch LBD3921-D FAQs

Can the Bosch LBD3921-D be used on a 100V line?

Yes. The specification lists a rated input voltage of 100 V, so it is intended for 100V constant-voltage public address systems driven by a suitable PA amplifier or mixer amplifier.

What is the Bosch LBD3921-D?

The Bosch LBD3921-D is a 24W black cabinet loudspeaker for 100V public address systems, used for speech announcements and background music.

Is the LBD3921-D a cabinet or a column loudspeaker?

The store lists it as a cabinet loudspeaker; Bosch's catalogue describes the LBD3921-D as a 24W black column loudspeaker with a tall, slim enclosure.

What coverage does the LBD3921-D give?

At -6 dB it covers 206 x 36 degrees at 1 kHz and 68 x 9 degrees at 4 kHz, which is wide across the room and narrow vertically.

How much does the Bosch LBD3921-D cost?

Contact Universal AV Solutions for the latest price and a GST quotation.

Do you provide installation and support?

Yes. Universal AV Solutions provides supply, installation and after-sales support across Delhi NCR and pan-India.

Good to know: Specifications are based on the manufacturer's published information and may change. Contact Universal AV Solutions to confirm what is included with your order. All brand names are trademarks of their respective owners.