Indicates a potentially hazardous situation which, if
mishandled, could result in moderate or minor personal
injury, and/or property damage.
CAUTION
Indicates a potentially hazardous situation which, if
mishandled, could result in death or serious personal
injury.
WARNING
INSTALLATION MANUAL
WALL MOUNT SPEAKER
BS-678
Thank you for purchasing TOA's Wall Mount Speaker.
Please carefully follow the instructions in this manual to
ensure long, trouble-free use of your equipment.
• Before installation or use, be sure to carefully read all the
instructions in this section for correct and safe operation.
• Be sure to follow all the precautionary instructions in this
section, which contain important warnings and/or cautions
regarding safety.
• After reading, keep this manual handy for future reference.
1. SAFETY PRECAUTIONS
• The BS-678, of which cabinet is made of wood, can 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 double cone speaker units deliver high
quality sound.
• The push-in type input connector makes cable connections
easy and allows bridge wiring.
2. FEATURES
3. WIRING DIAGRAM
4. SPECIFICATIONS
Note:
The design and specifications are subject to change without notice for improvement.
6 W (100 V LINE), 3 W (70 V LINE)
100 V line: 1.7 k
Ω
(6 W), 3.3 k
Ω
(3 W), 6.7 k
Ω
(1.5 W), 13 k
Ω
(0.8 W)
70 V line: 1.7 k
Ω
(3 W), 3.3 k
Ω
(1.5 W), 6.7 k
Ω
(0.8 W), 13 k
Ω
(0.4 W)
94 dB at 1 W, 1 m (500 – 5,000 Hz, pink noise)
150 – 20,000 Hz (at 20 dB below peak)
16 cm (6") double cone type
600 V vinyl-insulated cable (IV wire or HIV wire)
Solid wire: ø0.8 –ø1.6 mm (equivalent to AWG 20 – 14)
7-core twisted wire: 0.75 – 1.25 mm
2
(equivalent to AWG 18 – 16)
Push-in connector (bridging terminal)
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)
250 (w) x 190 (h) x 110 (d) mm (9.84" x 7.48" x 4.33")
1.5 kg (3.31 lb)
Tapping screw (4 x 35) ................................ 2
Rated Input
Rated Impedance
Sensitivity
Frequency Response
Speaker Component
Application Cable
Connection
Finish
Dimensions
Weight
Accessories
• To avoid electric shocks, be sure to switch off the amplifier's
power when connecting speakers.
• Do not operate the unit for an extended period of time with the
sound distorting. This is an indication of a malfunction, which
in turn can cause heat to generate and result in a fire.
• Do not stand or sit on, nor hang down from the unit as this may
cause it to fall down or drop, resulting in personal injury and/or
property damage.
• Install the unit only in a location that can structurally support
the weight of the unit and the mounting bracket. Doing
otherwise may result in the unit falling down and causing
personal injury and/or property damage.
• Do not use other methods than specified to mount the bracket.
Extreme force is applied to the unit and the unit could fall off,
possibly resulting in personal injuries.
• Tighten each nut and bolt securely. Ensure that the bracket
has no loose joints after installation to prevent accidents that
could result in personal injury.
8 Ω
13 kΩ
6.7 kΩ
3.3 kΩ
1.7 kΩ
0
COM (white)
COM
HOT (black)
HOT
Matching
transformer
Input connector
COM
