Bosch - LB1-UM20E-L, 20 W White 2-Way Cabinet Loudspeaker

Features

- Professional two-way cabinet loudspeaker

- 20 W rated power handling

- Maximum power of 30 W

- 5.25-inch low-frequency woofer

- 1-inch high-frequency transducer

- Extended frequency response up to 20 kHz

- 88 dB sensitivity

- Maximum SPL of 101 dB

- Supports 8 Ω low-impedance operation

- Compatible with 70 V systems

- Compatible with 100 V systems

- Integrated transformer for distributed audio

- 20 / 10 / 5 / 2.5 W transformer taps

- Wide horizontal sound coverage

- Excellent speech intelligibility

- Clear and balanced music reproduction

- Professional extruded aluminum enclosure

- Rugged aluminum front grille

- ABS top and bottom sections

- IP65 environmental protection

- Suitable for indoor and outdoor installations

- EN 54-24 voice alarm certification

- Suitable for evacuation sound systems

- Wall-mount bracket included

- Three-pole screw terminal connector

- White RAL 9010 finish

- Rugged construction for professional use

- Ideal for schools, offices, retail and public buildings

Specifications

- Brand: Bosch

- Model: LB1-UM20E-L

- Type: Two-way cabinet loudspeaker

- Series: Premium-sound Cabinet Loudspeaker

- Color: White RAL 9010

- Rated power (PHC): 20 W

- Maximum power: 30 W

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

- LF transducer: 134.5 mm (5.25-inch)

- HF transducer: 25.4 mm (1-inch)

- Sensitivity: 88 dB SPL at 1 W / 1 m

- SPL at rated power: 101 dB at 1 m

- Effective frequency range (-10 dB): 90 Hz – 20 kHz

- Horizontal opening angle at 1 kHz: 174°

- Horizontal opening angle at 4 kHz: 136°

- Vertical opening angle at 1 kHz: 127°

- Vertical opening angle at 4 kHz: 141°

- Rated input voltages: 12.65 / 70 / 100 V

- Impedance at 20 W: 8 / 250 / 500 Ω

- Impedance at 10 W: 500 / 1000 Ω at 70 / 100 V

- Impedance at 5 W: 1000 / 2000 Ω at 70 / 100 V

- Impedance at 2.5 W: 2000 / 4000 Ω at 70 / 100 V

- Connector: 3-pole screw terminal

- Enclosure material: Aluminum

- Front grille: Aluminum

- Top and bottom sections: ABS

- Environmental rating: IP65

- Certification: EN 54-24

- Mounting: Wall mount, bracket included

- Dimensions (H × W × D): 274 × 160 × 180 mm

- Net weight: 3.88 kg

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