BOSCH Horn LBC-3470

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BOSCH LBC 3470/00 Horn Loudspeaker

Features

▶High‑efficiency driver
▶Excellent speech reproduction
▶Versatile mounting bracket
▶Water-and dust protected to IP 65
▶Complies with international installation and safety regulations

The LBC 3470/00 is a 15 W high‑efficiency circular horn loudspeaker, provide excellent speech reproduction and sound distribution for a wide scope of indoor and outdoor applications. It is ideal for sports grounds, parks, exhibition areas, factories and swimming pools. The horn is made from ABS and finished in light gray (RAL 7035).

Certifications and approvals
Safety Acc. to EN 60065
Self-extinguishing Acc. to UL94V0
Water and dust protection Acc. to IEC 60529, IP 65

Mounting
The horn loudspeaker is standard supplied with a sturdy adjustable mounting bracket, allowing the sound beam to be accurately directed.

Simple power setting
The horn loudspeaker includes a 100 V transformer with taps on the primary winding to allow different power settings. Nominal full‑power, half‑power or quarter‑power radiation (i.e. in 3 dB steps) can easily be selected by connection the amplifier output to the appropriate tap. A 500 mm (19.68 in) long four‑core cable is fitted to the horn. Each core has a different color, which is connected to the one of the primary taps on the transformer.

Technical specifications

Electrical*

• Maximum power 22.5 W
• Rated power (PHC) 15 W
• Power tapping 15 / 7.5 / 3.75 W
• Sound pressure level at 15 W / 1 W (1 kHz, 1 m) 115 / 103 dB (SPL)
• Effective frequency range (- 10 dB) 500 Hz to 5 kHz
• Opening angle at 1 kHz / 4 kHz (‑6 dB)
  – Horizontal 130°
  – Vertical 50°
• Rated input voltage 100 V
• Rated impedance 667 Ohm
• Connection 4‑wire cable. Lenght: 500 mm (19.68 in)

* Technical performance data acc. to IEC 60268-5

Mechanical

• Dimensions (W x D) (213 x 186) x 310 mm (8.39 x 7.32) x 12.2 in)
• Weight 1.5 kg (3.30 lb)
• Color Light gray (RAL 7035)
• Material (horn / rear cover) ABS

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%