Bosch - LA1-UM20E-1, 20 W 70/100 V IP65 EN 54-24 Aluminum Column Loudspeaker

Features

- Professional 20 W column loudspeaker

- Excellent speech intelligibility

- Clear background music reproduction

- Optimized directional sound reproduction

- Suitable for applications requiring controlled directivity

- Compatible with 70 V systems

- Compatible with 100 V systems

- 8 Ω low-impedance operation

- Integrated line transformer

- Selectable 20 W / 10 W / 5 W / 2.5 W power taps

- 20 W rated power

- 30 W maximum power

- 92 dB SPL sensitivity

- Sound pressure level up to 105 dB SPL

- Frequency response optimized for speech and music

- Controlled vertical directivity

- Wide horizontal sound coverage

- Robust extruded aluminum enclosure

- Aluminum front grille

- Slim and attractive design

- IP65 water and dust protection

- Suitable for indoor and outdoor installations

- Swivel wall-mounting bracket supplied

- Accurate loudspeaker positioning

- Adjustable sliding mounting bracket

- Compatible with Bosch floor stand mounting

- Supplied with 1 m connection cable

- Cable gland for secure cable entry

- Provision for loop-through connection

- Integrated ceramic terminal block

- Integrated thermal fuse

- High-temperature internal wiring

- Built-in fire damage protection

- Maintains voice evacuation circuit integrity

- Designed for voice alarm systems

- EN 54-24 certified

- EN 60849 voice evacuation compliant

- BS 5839-8 compliant

- White RAL 9010 finish

- Ideal for worship venues, terminals, conference rooms, pools and industrial areas

Specifications

- Brand: Bosch

- Model: LA1-UM20E-1

- Type: Metal column loudspeaker

- Application: Public address and voice evacuation

- Maximum power: 30 W

- Rated power: 20 W

- Power taps: 20 W / 10 W / 5 W / 2.5 W

- Rated input voltage: 70 V / 100 V

- Low-impedance operation: 8 Ω

- Impedance at 20 W / 70 V: 250 Ω

- Impedance at 20 W / 100 V: 500 Ω

- Impedance at 10 W / 70 V: 500 Ω

- Impedance at 10 W / 100 V: 1000 Ω

- Impedance at 5 W / 70 V: 1000 Ω

- Impedance at 5 W / 100 V: 2000 Ω

- Impedance at 2.5 W / 70 V: 2000 Ω

- Impedance at 2.5 W / 100 V: 4000 Ω

- Sensitivity at 1 W / 1 m: 92 dB SPL

- SPL at rated power / 1 m: 105 dB SPL

- Sensitivity at 1 W / 4 m: 76 dB SPL

- SPL at rated power / 4 m: 89 dB SPL

- Effective frequency range: 240 Hz - 16 kHz

- Horizontal opening angle at 1 kHz: 210°

- Horizontal opening angle at 4 kHz: 94°

- Vertical opening angle at 1 kHz: 80°

- Vertical opening angle at 4 kHz: 22°

- Connector: 3-pole screw terminal block

- Connections: Phase / common / earth

- Supplied cable length: 1 m

- Enclosure material: Aluminum

- Front grille material: Aluminum

- Top and bottom material: ABS

- IP rating: IP65

- Voice alarm certification: EN 54-24

- Voice evacuation compliance: EN 60849 / BS 5839-8

- Color: White RAL 9010

- Mounting: Wall mount with swivel bracket

- Floor stand mounting: Compatible with Bosch LBC 1259/01

- Dimensions (H × W × D): 478 × 84 × 96 mm

- Weight: 2.9 kg

- Operating temperature: -25 °C to +55 °C

- Storage and transport temperature: -40 °C to +70 °C

- Relative humidity: Less than 95%

- Application environment: Indoor and outdoor