Box Speakers
The BS-678BSB is a voice alarm certificated wall speaker. With a high quality sound cone speaker the BS-678BSB is suitable for announcement and music. Either concealed in-wall or open wiring can be used for installation.
The speaker's structure permits direct wall-mounting with screws, which prevents the speaker from falling even if an outward force is applied to it.
The input impedance can be easily changed by changing the tap position of the transformer.
BS-678BSB | BS-678BSW | |
---|---|---|
Frequency response |
150 Hz - 18 kHz |
150 Hz - 18 kHz |
Sensitivity (1 W, 1 m) |
94 dB |
94 dB |
Max. SPL (1 m) |
98 dB |
98 dB |
Tappings |
100 V line: 1.7 kΩ (6 W) / 3.3 kΩ (3 W) / 6.7 kΩ (1.5 W) / 13 kΩ (0.8 W) 70 V line: 1.7 kΩ (3 W) / 3.3 kΩ (1.5 W) / 6.7 kΩ (0.8 W) / 13 kΩ (0.4 W) |
100 V line: 1.7 kΩ (6 W) / 3.3 kΩ (3 W) / 6.7 kΩ (1.5 W) / 13 kΩ (0.8 W) 70 V line: 1.7 kΩ (3 W) / 3.3 kΩ (1.5 W) / 6.7 kΩ (0.8 W) / 13 kΩ (0.4 W) |
Speaker component |
15 cm cone type |
15 cm cone type |
Operating temperature |
-10 °C to +50 °C ( 14 °F to 122 °F) |
-10 °C to +50 °C ( 14 °F to 122 °F) |
Finish |
HIPS resin, black (RAL 9011 or equivalent) |
HIPS resin, off-white (RAL 9010 or equivalent) |
Dimensions |
250 x 190 x 110 mm (W x H x D) |
250 x 190 x 110 mm (W x H x D) |
Weight |
1.7 kg |
1.7 kg |
Connection |
Ceramic screw terminals, thermal fuse |
Ceramic screw terminals, thermal fuse |
Sensitivity (1 W, 1 m) |
94 dB 500 Hz - 5 kHz, pink noise |
94 dB 500 Hz - 5 kHz, pink noise |
Rated input (high impedance) |
6 W (100 V), 3 W (70 V) |
6 W (100 V), 3 W (70 V) |
Accessory (included) |
Speaker mounting screw x 2, baffle fixing screw x 2 |
Speaker mounting screw x 2, baffle fixing screw x 2 |