Bosch - LBC3950/01, 6W IPx4 Ceiling Loudspeaker with 100V Transformer

Features

- Compact flush-mounted ceiling loudspeaker

- Designed for speech and background-music distribution

- Six-watt rated output power

- Nine-watt maximum power handling

- Integrated 100 V matching transformer

- Four selectable transformer power settings

- Available taps: 6 W, 3 W, 1.5 W and 0.75 W

- Full, half, quarter and eighth-power selection

- Four-inch full-range loudspeaker driver

- Specially treated moisture-resistant paper cone

- Wide frequency range for speech and music

- Very wide acoustic opening angle

- Covers large areas with fewer loudspeakers

- Provides clear voice-announcement reproduction

- Suitable for background-music applications

- Circular ABS plastic front grille

- Durable high-impact plastic surround

- Self-extinguishing ABS material meeting UL 94 V0

- Discreet white RAL 9010 finish

- Modern styling for contemporary interiors

- Front-facing IPx4 splash-water protection

- Suitable for selected humid indoor environments

- Suitable for bathrooms and atriums

- Suitable near indoor swimming-pool areas

- Integral ceiling-mounting clips

- Quick installation in suspended ceilings

- Supports ceiling thicknesses from 9 to 25 mm

- Push-terminal connection requires no special tools

- Terminal block supports loop-through wiring

- Transformer factory-wired for six-watt output

- Power setting changed through color-coded wires

- Circular mounting template included

- Rated-power endurance tested for 100 hours

- Handles twice rated power for short durations

- Optional Bosch LBC1256/00 EVAC adapter available

- Suitable for shops, hotels, offices and schools

Specifications

- Brand: Bosch

- Model: LBC3950/01

- Product number: F.01U.506.056

- Product type: Full-range ceiling loudspeaker

- Application: Speech and background-music distribution

- Installation type: Flush ceiling mounting

- Maximum power: 9 W

- Rated power: 6 W

- Selectable power taps: 6 W, 3 W, 1.5 W and 0.75 W

- Rated input voltage: 100 V

- Nominal impedance at 6 W: 1,667 Ω

- SPL at 6 W/1 m and 1 kHz: 96 dB

- Sensitivity at 1 W/1 m and 1 kHz: 88 dB

- SPL at 6 W/1 m and 4 kHz: 99 dB

- Sensitivity at 1 W/1 m and 4 kHz: 91 dB

- Effective frequency range: 60 Hz to 18 kHz

- Opening angle at 1 kHz: 170°

- Opening angle at 4 kHz: 90°

- Nominal loudspeaker diameter: 101.6 mm

- Nominal loudspeaker diameter: 4 inches

- Matching transformer: Integrated

- Connector: Two-pole plug-in terminal block

- Connection type: Push terminals

- Loop-through wiring facility: Yes

- Outside diameter: 160 mm

- Maximum depth: 95 mm

- Mounting cutout diameter: 145 mm

- Compatible ceiling thickness: 9 to 25 mm

- Mounting system: Integral clips

- Grille material: ABS plastic

- Cone material: Moisture-treated paper

- Color: White

- Color reference: RAL 9010

- Water protection: Front-facing IPx4

- Water-protection standard: EN 60529

- Self-extinguishing material rating: UL 94 V0

- Safety standard: EN 60065

- European certification: CE

- Net weight: 690 g

- Magnet weight: 101 g

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

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

- Relative humidity: Less than 95%

- Compatible accessory: Bosch LBC1256/00 EVAC adapter

- Supplied component: One LBC3950/01 loudspeaker

- Supplied template: 145 mm circular template