TOA | BS-678 | manual | TOA BS-678 User manual

TOA BS-678 User manual
INSTALLATION MANUAL
WALL MOUNT SPEAKERS
BS-678
BS-678T
BS-678B BS-678BT
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.
1. SAFETY PRECAUTIONS
• 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.
CAUTION
WARNING
Indicates a potentially hazardous situation which, if
mishandled, could result in moderate or minor personal
injury, and/or property damage.
Indicates a potentially hazardous situation which, if
mishandled, could result in death or serious personal
injury.
• To avoid electric shocks, be sure to switch off the amplifier's
power when connecting speakers.
• 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 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.
• 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.
2. FEATURES
• BS-678 series, of which cabinet is made of wood, can be installed in a vertical or horizontal orientation.
• Either concealed in-wall wiring or open 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.
• BS-678T and BS-678BT have a built-in attenuator and can be connected to a 2-wire or 3-wire system.
3. INSTALLATION
Step 3. Make wiring.
Step 1. Pull out the baffle, unlatch 2 V-shaped springs, then
remove the baffle from the cabinet.
3-1. Insert the lead-in cables (cables from the amplifier) and
lead-out cables (cables to other speakers) into the
push-in connector attached to the cabinet.
[Applicable cable]
Solid wire:
Baffle
Cabinet
ø0.8 to ø1.6 mm
(AWG 20 – 14)
Stranded wire (7-core): 0.75 to 1.25 mm2
(AWG 18 – 16)
HOT (+)
To the next
speaker
V-shaped spring
Squeeze the spring to detach
from the cabinet.
Cabinet
9 mm
(0.35”)
Baffle
From
the amplifier
Input connector
COM (-)
Step 2. Install the cabinet to the wall using the supplied tapping
screws 4 x 35. In this case, route the cables from a
cable entry hole.
Note
The speaker can be installed in a vertical or horizontal
orientation. Either concealed in-wall wiring or open
wiring are available for speaker cable connection.
Notches for open wiring
Note: The figure shows wiring for the BS-678/ 678B.
3-2. Insert the fasten terminals fitted at the ends of both the
HOT (black) and COM (white) cables from the input
connector on the cabinet into the taps of the matching
transformer on the speaker unit.
Connect the COM (white) cable to the transformer's
COM tap, and the HOT (black) cable to the desired
transformer's input tap. (Refer to the figure below.)
Screws for
horizontal mounting
Cabinet
Matching transformer
Cabinet
Input connector
Screws for
vertical mounting
HOT (black)
Tapping screws 4 x 35 (accessory)
COM (white)
Baffle
[Cabinet mounting dimensions]
Unit: mm (in)
Matching transformer
3-ø5 (0.2)
13kΩ
COM (white)
190 (7.48)
1.7kΩ 6.7kΩ
83.5
(3.29)
3.3kΩ
83.5
(3.29)
Cabinet outside
dimensions
250 (9.84)
Cable entry hole
(for open wiring at horizontal mounting)
Cable entry hole
(for concealed wiring at horizontal mounting)
Cable entry hole
(for concealed and open wirings at vertical mounting)
COM
HOT (black)
Impedance
100 V line
70 V line
1.7 kΩ
6W
3W
3.3 kΩ
3W
1.5 W
6.7 kΩ
1.5 W
0.8 W
13 kΩ
0.8 W
0.4 W
Step 4. Hook 2 V-shaped springs attached to the baffle into the
slotted holes of the cabinet, then push the baffle onto
the cabinet.
Note
When the speaker mounting
orientation is vertical, pinch and
rotate the logo mark on the baffle
into the right position.
4. VOLUME ADJUSTMENT (BS-678T and BS-678BT)
Adjust the sound volume by rotating rotary switch on the speaker’s side panel.
VOLUME CONTROL
3
2
Sound volume
0 dB
1
OFF
– 6 dB – 12 dB
OF
F
Switch position
3
off
1
2
Note: Switch position is factory-preset to “ 3.”
5. WIRING DIAGRAMS
5.1. BS-678 and BS-678B
Matching
transformer
Input connector
HOT (black)
HOT
(+)
13 kΩ
6.7 kΩ
3.3 kΩ
1.7 kΩ
COM
(HOT)
COM
(–)
(COM)
8Ω
0
COM (white)
Bridge
5.2. BS-678T and BS-678BT
[ 3-wire system ]
HOT (black)
Input connector
Attenuator
Normal
Emergency
Common
(N)
N
(R)
R
SP
13 kΩ
6.7 kΩ
3.3 kΩ
1.7 kΩ
COM
Matching
transformer
8Ω
0
(C)
COM (white)
Bridge
[ 2-wire system ]
Input
connector
HOT
(+)
(N)
(R)
Attenuator
N
R
SP
HOT (black)
13 kΩ
6.7 kΩ
3.3 kΩ
1.7 kΩ
(R–C SHORT)
COM
(C)
(–)
Bridge
COM (white)
Matching
transformer
8Ω
0
6. SPECIFICATIONS
Model No.
BS-678
BS-678T
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)
Sensitivity
94 dB at 1 W, 1 m (500 – 5000 Hz, pink noise)
Frequency Response
150 – 20000 Hz (at 20 dB below peak)
Speaker Component
16 cm (6") double cone type
Application Cable
600 V vinyl-insulated cable (IV wire or HIV wire)
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)
Solid wire: ø0.8 –ø1.6 mm (equivalent to AWG 20 – 14)
7-core twisted wire: 0.75 – 1.25 mm2 (equivalent to AWG 18 – 16)
Connection
Push-in connector (bridging terminal)
Attenuation
Finish
—
Baffle:
OFF, 1 ( – 12 dB), 2 ( – 6 dB), 3 (0 dB)
HIPS, off white (RAL 9010 or equivalent color)
Cabinet: Particle Board with pvc sheet, off white (RAL 9010 or equivalent color)
Grille:
Dimensions
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")
Note: For the BS-678T, above dimensions exclude the volume control knob.
Weight
1.7 kg (3.75 lb)
Accessories
Tapping screw (4 x 35) ................................ 2
Model No.
BS-678B
BS-678BT
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)
Sensitivity
94 dB at 1 W, 1 m (500 – 5000 Hz, pink noise)
Frequency Response
150 – 20000 Hz (at 20 dB below peak)
Speaker Component
16 cm (6") double cone type
Applicable Cable
600 V vinyl-insulated cable (IV wire or HIV wire)
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)
Solid wire: ø0.8 –ø1.6 mm (equivalent to AWG 20 – 14)
7-core twisted wire: 0.75 – 1.25 mm2 (equivalent to AWG 18 – 16)
Connection
Push-in connector (bridging terminal)
Attenuation
Finish
—
Baffle:
OFF, 1 ( – 12 dB), 2 ( – 6 dB), 3 (0 dB)
HIPS, Black (RAL 9011 or equivalent color)
Cabinet: Particle Board with pvc sheet, Black (RAL 9011 or equivalent color)
Grille:
Surface-treated steel plate net, Black (RAL 9011 or equivalent color)
Dimensions
250 (w) x 190 (h) x 110 (d) mm (9.84" x 7.48" x 4.33")
Note: For the BS-678BT, above dimensions exclude the volume control knob.
Weight
1.7 kg (3.75 lb)
Accessories
Tapping screw (4 x 35) ................................ 2
Note: The design and specifications are subject to change without notice for improvement.
Traceability Information for Europe
Manufacturer:
TOA Corporation
7-2-1, Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo,
Japan
Authorized representative:
TOA Electronics Europe GmbH
Suederstrasse 282, 20537 Hamburg,
Germany
URL: http://www.toa.jp/
133-01-00066-00
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