The BS-678BSB/678BSW is a single cone type speaker with a wooden cabinet that has a stylish, compact and unobtrusive design, and that delivers highly cost-effective performance. The speaker can
be quickly and easily installed in either a horizontal or a vertical orientation. The 16 cm (6") cone speaker unit ensures high-quality sound, making the BS-678BSB/678BSW ideal for BGM and announcement applications. The BS-678BSB/678BSW is EN 54-24* and ISO 7240-24 certified and is therefore authorized for use in conjunction with fire detection systems. It is also in compliance with
BS 5839-8: 2008 14.8.
Two steatite screw terminal blocks (1 cable to 1 connection type) allow bridge connection. The selectable input impedance can be easily adjusted by changing the tap position of the unit's transformer. Its structure permits direct wall installation with screws, making the speaker unit resistant to falling even if outward force is applied to it.
Features
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Stylish, compact and unobtrusive design
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Quick and easy installation
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High cost-effectiveness
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Horizontal / vertical installation
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Two steatite screw terminal blocks and thermal fuse
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Certified to EN 54-24 and ISO 7230-24 (Certificate No.: 0359-CPD-0103)
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In compliance with BS 5839-8: 2008 14.8
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Ideally suited for voice alarm system applications
Specifications
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Rated Impedance
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100 V line: 1.7 kΩ (6 W), 3.3 kΩ (3 W), 6.7 kΩ (1.5 W), 13 kΩ (0.8 W)
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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)
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Sensitivity: 94 dB (1 W, 1 m) (500 Hz - 5 kHz, pink noise)
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Frequency Response: 150 Hz - 20 kHz (peak -20 dB)
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Speaker Component: 16 cm (6") double cone-type
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Applicable Cable 600 V vinyl-insulated cable (IV wire or HIV wire olid wire: φ0.8 - φ1.6 mm (equivalent to AWG 20 - 14)7-core twisted wire: 0.75 - 1.25 m㎡ (equivalent to AWG 18 - 16)
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Connection: Push-in connector (bridging terminal)
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Attenuation: OFF, 1 (-12 dB), 2 (-6 dB), 3 (0 dB)
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Finish Baffle: Baffle: HIPS, black (RAL 9010 or equivalent color)
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Cabinet: Particle board with pvc sheet, black (RAL 9010 or equivalent olor)
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Grille: Surface-treated steel plate net, black (RAL 9010 or quivalent color)
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Dimensions: 250 (W) × 190 (H) × 110 (D) mm (9.84" × 7.48" × 4.33"(excluding volume control knob)
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Weight: 1.7 kg (3.75 lb)
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Accessory Speaker mounting screw (4 × 35 (0.16" × 1.38")): 2