Bosch LBD3903-D 12W Cabinet Loudspeaker India

Name: Bosch LBD3903-D 12W Cabinet Loudspeaker, Black
Brand: Bosch
Price: 2325.0 INR
Availability: InStock

Bosch LBD3903-D 12W cabinet loudspeaker, front view

Bosch LBD3903-D · Cabinet Loudspeaker

Clear 12W Cabinet Loudspeaker for 100V PA Systems

LBD3903-D Slim Black Cabinet Speaker for Speech & Music Ideal for Halls, Classrooms & Lobbies

12W Rated Power
100V Line Input
91.7 dB Sensitivity
184 x 66 deg Coverage

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Product information

Bosch LBD3903-D is a 12W black cabinet loudspeaker for 100V public address systems. Its slim, taller cabinet has a wide horizontal pattern and a narrower vertical pattern, which helps keep speech clear in classrooms, halls, lobbies and worship spaces.

Key features

12W rated power: double the rated power of the 6W model 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).
91.7 dB sensitivity: measured at 1 W, 1 m, 1 kHz octave.
Defined coverage: 184 x 66 degrees at 1 kHz and 86 x 58 degrees at 4 kHz (-6 dB): wide across the room, narrower vertically.
Cabinet size: 445 x 151 x 150 mm and 2.6 kg.
Black finish: suits most interior colour schemes.
Indoor environmental range: operates from -5 to 55 degrees C and stores from -40 to 70 degrees C.

Ideal for

Classrooms, meeting halls, lobbies, canteens, worship spaces and retail floors where speech announcements and background music need more reach than a 6W speaker.

Buy Bosch LBD3903-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 LBD3903-D at a glance

Product type	Cabinet loudspeaker for public address
Rated power	12 W
Rated input voltage	100 V
Frequency range (-10 dB)	150 Hz to 15 kHz
Sensitivity (1 W, 1 m, 1 kHz)	91.7 dB
Coverage (-6 dB, 1 kHz)	184 x 66 deg
Coverage (-6 dB, 4 kHz)	86 x 58 deg
Dimensions (H x W x D)	445 x 151 x 150 mm
Weight	2.6 kg
Colour	Black

More level and reach for medium rooms

With 12W rated power and 91.7 dB sensitivity, the LBD3903-D is a step up from the 6W cabinet for larger spaces.

Tall cabinet gives a wide horizontal spread with a narrower vertical pattern.
Runs from a 100V PA amplifier or mixer amplifier.
Black finish blends into interiors.

Bosch LBD3903-D FAQs

Can the Bosch LBD3903-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 LBD3903-D?

The Bosch LBD3903-D is a 12W black cabinet loudspeaker for 100V public address systems, used for speech announcements and background music.

What coverage does the LBD3903-D give?

At -6 dB it covers 184 x 66 degrees at 1 kHz and 86 x 58 degrees at 4 kHz, so it spreads across a room while limiting vertical spill.

Who is the LBD3903-D for?

It suits classrooms, halls, lobbies, canteens and retail spaces that need clear speech and background music.

How much does the Bosch LBD3903-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.