Bosch LA1-UW36-L1 Product Highlights
Explore the key capabilities of the Bosch LA1-UW36-L1 column loudspeaker.
Directed Sound
A narrow 30° vertical beam at 1 kHz keeps speech clear.
High Sensitivity
Four dual-cone drivers: 98 dB at 1 W, up to 114 dB.
Wide Horizontal Spread
190° horizontal at 1 kHz.
Swivel Bracket
A swivel wall bracket is supplied for accurate aiming.
MDF Column
Solid MDF in easy-to-clean vinyl with a cloth front.
Simple Power Setting
Taps 36, 18 and 9 W on 100 V.
Key specs
- Taps 36 / 18 / 9 W (100 V), max 54 W
- 114 / 98 dB SPL at 36 W / 1 W (1 kHz, 1 m)
- 160 Hz to 19 kHz
- Opening angle 190° / 88° H, 30° / 8° V (1 / 4 kHz)
- 841 x 151 x 129 mm, 6 kg
- Four dual-cone drivers
- Solid MDF, vinyl finish, cloth front
- Swivel wall bracket supplied
- 4-pole push-in terminal
- Black or white
- Not EN54-24
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Electrical |
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Maximum power |
54 W |
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Rated power |
36 / 18 / 9 W |
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Sound pressure level at 24 W / 1 W (1 kHz, 1 m) |
114 dB / 98 dB (SPL) |
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Effective frequency range (-10 dB) |
160 Hz to 19 kHz |
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Opening angle |
1 kHz / 4 kHz (-6 dB) |
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horizontal |
190° / 88° |
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vertical |
30° / 8° |
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Rated input voltage |
100 V |
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Rated impedance |
278 ohm |
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Connector |
4‑pole push‑in terminal block |
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Mechanical |
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Dimensions (H x W x D) |
841x 151 x 129 mm (33.1 x 5.9 x 5.1 in) |
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Weight |
6 kg ( 13.2 lb) |
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Color |
White |
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cabinet / cloth (D) |
Matches RAL 9004 / RAL 9004 |
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cabinet / cloth (L) |
Matches RAL 9010 / RAL 7044 |
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Environmental |
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Operating temperature |
-25 ºC to +55ºC (-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 LA1-UW36-L1, and how it compares.
Which colours are available?
The same column loudspeaker in two colours: LA1-UW36-D1 in charcoal or black and LA1-UW36-L1 in white.
Column loudspeaker or line array?
- XLA line arrays, LBC3200/00 and LBC3201/00: the premium choice for halls. Several drivers with advanced filtering give an extended listening area: the sound stays even from the front rows to the back, and the beam stays wide (18° to 22° vertical at 4 kHz) instead of narrowing. 190 Hz to 18 kHz, EN54-24 certified, indoor. The 60 W LBC3201/00 is made for large, reverberant spaces such as places of worship.
- Metal columns, LA1-UM20E-1 and LA1-UM40E-1: slim aluminium columns for speech where directivity matters, IP65 for indoor and outdoor use (terminals, pools, factories), designed for voice alarm to EN 54-24.
- MDF column, LA1-UW36-D1 / LA1-UW36-L1: a 36 W indoor column with four drivers, high sensitivity and a wide 160 Hz to 19 kHz range, for speech and music.
| Model | Power taps | SPL 1 W / max | Frequency range | Vertical beam at 4 kHz | Height | IP |
|---|---|---|---|---|---|---|
| LBC3200/00 | 30 / 15 / 7.5 W | 91 / 106 dB | 190 Hz to 18 kHz | 18° | 600 mm | IP21C |
| LBC3201/00 | 60 / 30 / 15 W | 91 / 108 dB | 190 Hz to 18 kHz | 22° | 1,200 mm | IP21C |
| LA1-UM20E-1 | 20 / 10 / 5 / 2.5 W | 92 / 105 dB | 240 Hz to 16 kHz | 22° | 478 mm | IP65 |
| LA1-UM40E-1 | 40 / 20 / 10 / 5 W | 95 / 111 dB | 250 Hz to 16 kHz | 12° | 778 mm | IP65 |
| LA1-UW36-D1 / LA1-UW36-L1 | 36 / 18 / 9 W | 98 / 114 dB | 160 Hz to 19 kHz | 8° | 841 mm | Indoor |
The XLA and LA1-UM models take the universal floor stand LBC1259/01 (ask us) for temporary set-ups.
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.
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.
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.
