LH1-UC30E
Two-way music horn loudspeaker, 30W
30 / 15 / 7.5 / 3.75 W | ABS horn, aluminium bracket | 100 dB SPL (1W, 1m) | 210 Hz to 20 kHz | EN54-24
LH1-UC30E
Two-way music horn loudspeaker, 30W
30 / 15 / 7.5 / 3.75 W | ABS horn, aluminium bracket | 100 dB SPL (1W, 1m) | 210 Hz to 20 kHz | EN54-24
Bosch LH1-UC30E Product Highlights
Explore the key capabilities of the Bosch LH1-UC30E horn loudspeaker.
Two-Way Music Horn
An extended frequency range, 210 Hz to 20 kHz, for speech and music.
EN54-24
Certified for voice alarm, with ceramic terminals, thermal fuse and heat-resistant wiring.
Stadiums and Terminals
Sports grounds, stadiums, leisure parks, passenger terminals.
IP66, Bft 11
IP66 housing, rated for wind force Bft 11.
Supervision Ready
Space inside for an optional line or loudspeaker supervision board.
70 V and 100 V
Taps 30, 15, 7.5 and 3.75 W on either line voltage.
Key specs
- Taps 30 / 15 / 7.5 / 3.75 W (70 / 100 V), max 45 W
- 100 dB SPL at 1 W (1 kHz, 1 m)
- 210 Hz to 20 kHz (-10 dB)
- Coverage 68° x 100° at 1 kHz
- 255 x 370 x 354 mm, 5.5 kg
- ABS horn, aluminium bracket
- Ceramic terminals, thermal fuse
- PG13.5 gland, loop-through hole
- IP66, wind force Bft 11
- RAL 7035 light grey
- EN54-24, BS 5839-8
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Electrical |
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Maximum power |
45 W |
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Rated power (PHC) |
30 W |
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Power tapping |
30 / 15 / 7.5 / 3.75 W |
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Sound pressure level at rated power / 1 W (1 kHz, 1 m) |
115 / 100 dB (SPL) |
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Sound pressure level at rated power / 1 W (1 kHz, 4 m) |
100 / 86 dB (SPL) |
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Effective frequency range (- 10 dB) |
212 Hz to 20 kHz |
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Opening angle at 1 kHz / 4 kHz (‑6 dB) |
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Horizontal |
68° / 68° |
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Vertical |
100° / 120° |
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Rated input voltage Rated impedance |
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70V |
100V |
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30 W |
167 Ohm |
333 Ohm |
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15 W |
333 Ohm |
667 Ohm |
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7.5 W |
667 Ohm |
1334 Ohm |
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3.75 W |
1334 Ohm |
2668 Ohm |
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Connector |
6-pole screw terminal |
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* Technical performance data acc. to IEC 60268‑5 |
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Mechanical |
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Dimensions (H x W x D) |
255 x 370 x 354 mm (10.04 x 14.56 x 13.93 in) |
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Weight |
5.5 kg (12.45 lb) |
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Color |
Light grey (RAL 7035) |
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Material (horn / bracket) |
ABS / Aluminum |
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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 and transport temperature |
-40 ºC to +70 ºC (-40 ºF to +158 ºF) |
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Relative humidity |
<95% |
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Know before you buy
Quick answers about the LH1-UC30E, and how it compares.
Which horn loudspeaker do I need?
| Model | Build | Power taps | SPL 1 W / max (1 kHz) | Frequency range | Range |
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| LHE-10CGE | Fibre-reinforced ABS, IP66 | 10 / 5 W | 105 / 114 dB | 410 Hz to 9.7 kHz | Entry |
| LHE-30CGE | Fibre-reinforced ABS, IP66 | 30 / 15 W | 108 / 122 dB | 400 Hz to 11.3 kHz | Entry |
| LBC3481/12 | ABS, IP65 | 10 / 5 / 2.5 W | 103 / 113 dB | 500 Hz to 7 kHz | Entry |
| LHM-10MGE | Aluminium, IP66 | 10 / 5 W | 105 / 114 dB | 400 Hz to 9.7 kHz | Mid |
| LHM-30MGE | Aluminium, IP66 | 30 / 15 W | 109 / 123 dB | 315 Hz to 7.1 kHz | Mid |
| LHM-50MGE | Aluminium, IP66 | 50 / 25 W | 111 / 127 dB | 310 Hz to 6.6 kHz | Mid |
| LBC3492/12 | Aluminium and ABS, IP65 | 20 / 10 / 5 W | 110 / 123 dB | 380 Hz to 5.5 kHz | Mid |
| LBC3493/12 | Aluminium and ABS, IP65 | 30 / 15 / 7.5 W | 111 / 126 dB | 380 Hz to 5 kHz | Mid |
| LBC3484/00 | Aluminium, IP65 | 50 / 25 / 12.5 W | 110 / 127 dB | 350 Hz to 4 kHz | Mid |
| LH1-UC30E | ABS, two-way music horn | 30 / 15 / 7.5 / 3.75 W | 100 dB at 1 W | 210 Hz to 20 kHz | Performance |
| LH3-UC25XS | Polyamide, ex-proof | 25 W to 1.5 W | 106 / 118 dB | 380 Hz to 8 kHz | Hazardous areas |
| LH3-UC25XL | Polyamide, ex-proof | 25 W to 1.5 W | 109 / 122 dB | 380 Hz to 7 kHz | Hazardous areas |
The new LHE and LHM horns are EN54-24 with a smart bracket; so is the LH1-UC30E. Ranges: Entry, Mid, Performance.
What is the difference between Entry, Mid and Performance Level?
- Entry Level: speech and alarm tones in public address and voice alarm; cost-efficient, nothing more, nothing less.
- Mid Level: high-quality speech plus background music, metal fire dome, more installation features. Mid Level horns add long throw and aluminium for demanding sites.
- Performance Level: evacuation and high-quality music in one housing.
It is about the job, not the price: if you only need alarm tones in an emergency, an Entry Level loudspeaker is reliable and perfectly fine. Pick Mid or Performance for background music, easier installation or more robust materials. Horns: Entry, Mid, Performance.
What does EN54-24 mean?
EN 54-24 is the European standard for loudspeakers in voice alarm (evacuation) systems. Certified models show EN54-24 in the banner at the top of their page; the others show Non-EN54 and suit commercial public address and music. For an evacuation system, use EN54-24 loudspeakers throughout.
What do the power taps mean?
Each loudspeaker can be set to one of its power taps, for example 6 / 3 W. Choose a lower tap for small or quiet areas and a higher tap for large or noisy ones. Add up the taps of every loudspeaker on a line: the amplifier must deliver at least that total.
Many 6 W ceiling loudspeakers are tapped down to 3 W, 1.5 W or 0.75 W in the field; in smaller or low-noise areas 3 W is more than enough.
Can I get the loudspeakers in a custom colour?
Yes. Bosch paints loudspeakers in any RAL colour to blend in with the architecture of hotels, malls, airports and similar projects. The paint is durable, suits indoor and outdoor use, keeps the EN54 certification and has a 3-year warranty. Tell us the models, quantities and RAL code.
Who supplies Bosch loudspeakers in Pakistan, and what warranty do I get?
Electronic Security Company (ESCO) is the only authorized distributor of Bosch, Dynacord and Electro-Voice in Pakistan, so every Bosch loudspeaker is genuine and comes with a 3-year warranty. Warranty is carry-in: bring the unit to an ESCO office and after inspection it is repaired or replaced as needed.
We supply, design and install public address and voice alarm systems, with offices and stock in Karachi, Lahore, Islamabad and Rawalpindi and dealers across Pakistan.