Driver Unit
Bosch LBC3474/00 50 W Horn Driver Unit
Power
Maximum Power : 75 W, Rated power : 50 / 25 / 12.5 W
Opening Angle
Opening angle at 1 kHz/4 kHz (-6 dB) : 60° / 28°
Effective Frequency Range
350 Hz to 4 kHz (-10dB)
Sound Pressure Level
50 W / 1 W (1 kHz, 1 m) : 127 dB / 110 dB (SPL)
Applications
Splash resistant, makes it ideal for sports grounds, parks, exhibitions, factories, and swimming pools.
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Electrical |
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Maximum power |
75 W |
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Rated power |
50 / 25 / 12.5 W |
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Sound pressure level at 50 W / 1 W (1 kHz, 1 m) |
127 dB / 110 dB (SPL) |
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Effective frequency range (-10 dB) |
350 Hz to 4 kHz |
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Opening angle at 1 kHz/4 kHz (-6 dB) |
60° / 28° |
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Rated voltage |
100 V |
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Rated impedance |
200 ohm |
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Connector |
Screw terminal block |
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Mechanical |
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Dimensions (L x D max) |
Driver: 445 x 175 mm (17.5 x 6.88 in) |
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Weight |
Driver: 3.5 kg (7.70 lb) |
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Color |
Light grey (RAL 7035) |
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Cable diameter |
6 mm to 12 mm (0.24 in to 0.47 in) |
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Environmental |
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Operating temperature |
-25 ºC to +55 ºC (-13 ºF to +131 ºF) |
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Storage temperature |
-40 ºC to +70 ºC (-40 ºF to +158 ºF) |
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Relative humidity |
<95% |
Know before you buy
Quick answers about the LBC3474/00 50W, and how it compares.
Which speaker for a masjid?
A masjid needs three kinds of coverage.
Prayer hall: wall-mounted cabinet speakers such as LB2-UC15-L1 / LB2-UC30-L1 or LB1-UM20E-L, or column speakers such as LA1-UM20E-1 / LA1-UM40E-1, LA1-UW36-L1 or the LBC3200/00 line array. They carry speech the length of a hall with hard walls and keep it clear; ceiling speakers in a high hall do not. For a premium sound use Electro-Voice EVID surface speakers (EVID-S5.2TB, EVID-S8.2TB); for a high-end hall with long reverberation, the Electro-Voice LRC column speakers (LRC-1060-B, LRC-1100-B, LRC-2100-B), supplied on request.
Low-ceiling rooms, ablution areas, corridors and offices: ceiling speakers (LC1, LC3, LCM, LHM ranges).
Minaret and courtyard: horn speakers LBC3482/00, LBC3483/00, LBC3484/00 or LBC3481/12, LH3-UC25XL for very long throw, or the LBC3474/00 50 W driver on an LBC3479/00 20" flare for the minaret.
Coverage depends on the acoustic characteristics of the hall (size, height, hard or soft surfaces, reverberation), so the best suggestion comes from ESCO's Bosch and Electro-Voice certified engineers: take the free pre-sales consultation and they will size the amplifier and the number of speakers for your masjid.