Bosch LA1-UM20E-1 20W Metal Column Loudspeaker
Bosch LA1-UM20E-1 20W Metal Column Loudspeaker, Maximum power 30W, Rated input voltage : 12.65 / 70 / 100 V , Rated impedance 8/251/500 ohm, 20 / 10 / 5 / 2.5 W Power Tapping, 105 / 92 dB SPL at 1 W (1 kHz, 1 m), Effective frequency range (-10 dB) : 240 Hz to 16 kHz.
- Good speech intelligibility and background music reproduction
- For applications where directivity is important
- Slim-line weatherproof design
- Swivel wall-mounting bracket supplied as standard
- Robust aluminum construction
- Switchable between 70/100 V line and 8 Ohms
- Provision for inside mounting of the optional line/loudspeaker supervision board
- EN 54‑24 certified
- BS 5839‑8 and EN 60849 compliant
Technical Specification
parts included
Technical Specification
| Color | White; Customized colors |
| Coverage angle HxV (-6 dB, 1 kHz) (°) | 210 x 80 ° |
| Coverage angle HxV (-6 dB, 4 kHz) (°) | 94 x 22 ° |
| Dimensions (H x W x D) (mm) | 477 x 86.5 x 97 mm |
| Frequency range (-10 dB) (Hz) | 180 – 16000 Hz |
| IP rating | IP65 |
| Material | Aluminum; Plastic (ABS) |
| Operating relative humidity, non-condensing (%) | 0 – 95 % |
| Operating temperature (°C) | -25 – 55 °C |
| Rated input voltage (V) | 100 V |
| Rated power (W) | 20 W |
| Sensitivity (1 W, 1 m, 1 kHz octave) (dB) | 89 dB |
| Sensitivity (1 W, 4 m, 100 Hz – 10 kHz) (dB) | 78 dB |
| Storage temperature (°C) | -40 – 70 °C |
| Weight (kg) | 2.9 kg |
parts included
| Quantity | Component |
|---|---|
| 1 | LA1‑UM20E-1 Metal Column loudspeaker |
| 1 | Wall mounting bracket |
| 1 | Installation chart |