TOA BS-678 Wall-Mount Speakers – Stylish Wooden Cabinet Speakers for BGM & Paging
The TOA BS-678 is a compact, 6" double-cone wall-mount speaker designed for background music and paging applications in commercial settings such as offices, restaurants, schools, and retail stores. Housed in a stylish wooden cabinet, the BS-678 blends well with interior decor while delivering high-quality audio at an affordable price.
Equipped with a push-in type connector for fast wiring and tap-selectable 70V/100V transformer, the BS-678 allows flexible installation and impedance adjustment. Its double-cone speaker unit provides wide frequency response and clear sound reproduction.
The speaker can be mounted horizontally or vertically, and comes with tapping screws for direct stud mounting. For plasterboard walls, appropriate wall anchors are recommended. The BS-678 ships in pairs and is backed by TOA’s trusted 5-year warranty.
TOA BS-678 Specification
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Rated Input
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6 W (100 V line), 3 W (70 V line)
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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)
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
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94 dB (1 W, 1 m) (500 Hz - 5 kHz, pink noise)
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Frequency Response
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150 Hz - 20 kHz (peak -20 dB)
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Speaker Component
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16 cm (6") double cone-type
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Applicable Cable
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600 V vinyl-insulated cable (IV wire or HIV wire)
Solid 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
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Push-in connector (bridging terminal)
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Finish
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Baffle: HIPS, off-white (RAL 9010 or equivalent color)
Cabinet: Particle board with pvc sheet, off-white (RAL 9010 or equivalent color)
Grille: Surface-treated steel plate net, off-white (RAL 9010 or equivalent color)
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Dimensions
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250 (W) × 190 (H) × 110 (D) mm (9.84" × 7.48" × 4.33")
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Weight
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1.7 kg (3.75 lb)
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Accessory
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Speaker mounting screw (4 × 35 (0.16" × 1.38")) …2
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