Volume control knob BOSCH LBC1420/10 (100W, Power-save)

BOSCH LBC1420/10 Volume Control

BOSCH LBC1420/10 is a 100W high-power volume control device, designed for public address systems with high requirements for performance and reliability. The device supports 10 volume adjustment steps (each step 2 dB) and integrates a 24VDC override relay, ensuring that emergency messages are transmitted at the optimal volume level, regardless of the initial setting.

Outstanding features:

• Rated power: 100 W
• Input voltage: 100 V
• 10 levels of attenuation (10 x 2 dB) + off, allowing for more precise and smooth volume control.
• Integrated 24 VDC override relay (power-save): Activated in an emergency situation to play announcements at maximum volume.
• Surface-mounted design, suitable for many installation spaces.
• Elegant white (RAL 9010) color, suitable for any modern interior space.

Technical specifications

• Frequency response: 50 Hz – 20 kHz (±1 dB)
• Total harmonic distortion (THD): <0.5%
• Current consumption: 20 mA at 24 VDC
• Dimensions (W x H x D): 87 x 147 x 61.5 mm
• Weight: 512 g (including surface mount box)
• Operating temperature: -10 °C to +55 °C
• Relative humidity: <95%