BOSCH - LBC 3951/11 Ceiling Loudspeaker.
The LBC 3951/11 has a perforated metal grille with a plastic surround, finished in an attractive off-white RAL color. The unobtrusive styling of this loudspeaker complements today’s interior lighting. The loudspeaker feature a very wide opening angle, which means fewer units are required to cover a given area. The wide frequency range means better speech and music reproduction. The unit is supplied with a 100 V matching transformer with taps on the primary winding for full-power, half-power, quarter-power and eighth-power radiation. The loudspeaker (with special treated paper cone), is IPx4 water protected from the front and can be applied in humidity environments for example bathrooms, saunas, atriums and swimming pool areas.
LBC 3951/11 Ceiling Loudspeaker Ceiling loudspeaker 6 W, circular metal grille with an ABS surround, integral clips for easy mounting, push terminal block, white RAL 9010. Order number LBC3951/11.
– Compact yet powerful.
– Very wide opening angle.
– Modern unobtrusive styling.
– Installation friendly.
– Splash – waterproof.
| ELECTRICAL* | |
|---|---|
| Maximum power | 9 W |
| Rated power | 6 / 3 / 1.5 / 0.75 W |
| Sound pressure level at 6 W / 1 W (1 kHz, 1 m) | 96 dB / 88 dB (SPL) |
| Effective frequency range (-10 dB) | 60 Hz to 18 kHz |
| Opening angle at 1 kHz/4 kHz (-6 dB) | 170° / 90° |
| 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 | Diameter 160 mm (6.30 in) |
| Maximum depth | 95 mm (3.74 in) |
| Ceiling thickness | 9 to 25 mm (0.35 to 0.98 in) |
| Mounting cut-out | 145 mm (5.71 in) |
| Speaker diameter | 101.6 mm (4 in) |
| Weight | 690 g (1.52 lb) |
| Color | Off-white (RAL 9010) |
| Magnet weight | 101 g (3.57 oz) |
| ENVIRONMENTAL | |
|---|---|
| Operating temperature | -25 ºC to +55 ºC (-13 ºF to +131 ºF) |
| Storage temperature | -40 ºC to +70 ºC (-40 ºF to +158 ºF) |
| Relative humidity | <95% |
| CERTIFICATION AND APPROVALS | |
|---|---|
| Safety | acc. to EN 60065 |
| Water protected | acc. to EN 60529, IPx4 |
| ELECTRICAL* | |
|---|---|
| Maximum power | 9 W |
| Rated power | 6 / 3 / 1.5 / 0.75 W |
| Sound pressure level at 6 W / 1 W (1 kHz, 1 m) | 96 dB / 88 dB (SPL) |
| Effective frequency range (-10 dB) | 60 Hz to 18 kHz |
| Opening angle at 1 kHz/4 kHz (-6 dB) | 170° / 90° |
| 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 | Diameter 160 mm (6.30 in) |
| Maximum depth | 95 mm (3.74 in) |
| Ceiling thickness | 9 to 25 mm (0.35 to 0.98 in) |
| Mounting cut-out | 145 mm (5.71 in) |
| Speaker diameter | 101.6 mm (4 in) |
| Weight | 690 g (1.52 lb) |
| Color | Off-white (RAL 9010) |
| Magnet weight | 101 g (3.57 oz) |
| ENVIRONMENTAL | |
|---|---|
| Operating temperature | -25 ºC to +55 ºC (-13 ºF to +131 ºF) |
| Storage temperature | -40 ºC to +70 ºC (-40 ºF to +158 ºF) |
| Relative humidity | <95% |
| CERTIFICATION AND APPROVALS | |
|---|---|
| Safety | acc. to EN 60065 |
| Water protected | acc. to EN 60529, IPx4 |