The BS-678BT, is made of wood and be installed in a vertical or horizontal orientation. Either concealed in-wall wiring or exposed wiring can be used for speaker cable connection. The speaker structure that permits direct wall-mounting with screws prevents the speaker from falling easily even if an outward force is applied to. The input impedance can be easily changed by changing the tap position of the transformer. Two built-in 6-inch (16 cm) double cone speaker units deliver high quality sound. The push-in type input connector makes cable connections easy and allows bridge wiring. BS-678BT have a built-in attenuator and can be connected to a 2-wire or 3-wire system
Specifications
• Rated Input 6 W (100 V line), 3 W (70 V line)
• Rated Impedance 100 V line: 1.7 kΩ (6 W), 3.3 kΩ (3 W), 6.7 kΩ (1.5 W), 13 kΩ (0.8 W) 0 V line: 1.7 kΩ (3 W), 3.3 kΩ (1.5 W), 6.7 kΩ (0.8 W), 13 kΩ (0.4 W)
• Sensitivity 94 dB (1 W, 1 m) (500 Hz - 5 kHz, pink noise)
• Frequency Response 150 Hz - 20 kHz (peak -20 dB)
• Speaker Component 16 cm (6") double cone-type
• 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)
• Connection Push-in connector (bridging terminal)
• Attenuation OFF, 1 (-12 dB), 2 (-6 dB), 3 (0 dB)
