ลำโพงเพดาน  ยี่ห้อ Bosch รุ่น LBC3951/12

The LBC3951/12 is a compact, 6 W loudspeaker with a perforated metal grille. It has excellent audio performance and is easy to install with its integral mounting clips. The loudspeaker is IPx4 water protected from the front so it can be installed in humid environments.

Technical specifications

Electrical*

• Rated power : 6 / 3 / 1.5 / 0.75 W
• Sound pressure level at 6 W / 1 W (1 kHz, 1 m) : 95 dB / 87 dB (SPL)
• Sound pressure level at 6 W / 1 W (4 kHz, 1 m) : 98 dB / 90 dB (SPL)
• Effective frequency range (-10 dB) : 90 Hz to 18 kHz
• Opening angle at 1 kHz/4 kHz (-6 dB) : 180° / 65°
• Rated voltage : 100 V
• Rated impedance : 1667 ohm
• Connector : 2-pole push-in terminal block
• * Technical performance data acc. to IEC 60268-5

Mechanical

• Diameter 160 mm (6.30 inch)
• Maximum depth 95 mm (3.74 inch)
• Ceiling thickness 9 to 25 mm (0.35 to 0.98 inch)
• Mounting cut-out 145 mm (5.71 inch)
• Speaker diameter 101.6 mm (4 in)
• Weight 640 g (1.41 lb)
• Color White (RAL 9010)
• Magnet weight 101 g (3.57 oz)

Environmental

• Operating temperature -25 ºC to +55 ºC (-13 ºF to +131 ºF)
• Storage and transport temperature : -40 ºC to +70 ºC (-40 ºF to +158 ºF)
• Relative humidity <95%