Bosch LB1-UM20E-L Premium-sound Cabinet Loudspeaker 20W
Bosch LB1-UM20E-L Premium-sound Cabinet Loudspeaker 20W White, SPL at rated power / 1 W (1 kHz, 1 m) : 101 dB / 88 dB, Effective frequency range (-10 dB) : 90 Hz to 20 kHz, Opening angle at 1 kHz / 4 kHz (-6 dB) : horizontal 174° / 136°, Vertical 127° / 141°, Aluminum Enclosure..
- High-fidelity music and speech reproduction
- Supplied with adjustable wall‑mounting bracket
- Self‑restoring overload protection
- Provision for inside mounting of the optional line/loudspeaker supervision board
- EN 54‑24 certified
Technical Specification
parts included
Technical Specification
| Color | White; Customized colors |
| Coverage angle HxV (-6 dB, 1 kHz) (°) | 186 x 84 ° |
| Coverage angle HxV (-6 dB, 4 kHz) (°) | 126 x 62 ° |
| Dimensions (H x W x D) (mm) | 405 x 160 x 180 mm |
| Frequency range (-10 dB) (Hz) | 90 – 20000 Hz |
| Material | Aluminum |
| Operating temperature (°C) | -25 – 55 °C |
| Rated input voltage (V) | 70 V; 100 V |
| Sensitivity (1 W, 1 m, 1 kHz octave) (dB) | 91 dB |
| Storage temperature (°C) | -40 – 70 °C |
| Weight (kg) | 5.58 kg |
parts included
| Quantity | Component |
|---|---|
| 1 | LB1‑UM50E‑L Cabinet loudspeaker |
| 1 | Mounting bracket |
| 1 | Installation instruction |