Toa BS-678BSW User Manual
WALL MOUNT SPEAKERS BS-678BSB
BS-678BSW
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.
Traceability Information for Europe (EMC directive 2004/108/EC)
Manufacturer:
TOA Corporation
7-2-1, Minatojima Nakamachi, Chuo-ku, Kobe, Hyogo,
Japan
Authorized representative:
TOA Electronics Europe GmbH
Suederstrasse 282, 20537 Hamburg,
Germany
INSTRUCTION MANUAL
1. SAFETY PRECAUTIONS ........................... 1
2. GENERAL DESCRIPTION
AND FEATURES ......................................... 2
3. INSTALLATION .......................................... 2
4. DIMENSIONAL DIAGRAM ......................... 4
5. WIRING DIAGRAM ..................................... 4
6. FREQUENCY RESPONSE ......................... 5
7. SPECIFICATIONS ...................................... 5
TABLE OF CONTENTS
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.
When Installing the Unit
• Refer all installation work to the dealer from whom
the speaker was purchased. Installation work
requires extensive technical knowledge and
experience. The speaker may fall off if incorrectly
installed, resulting in possible personal injury.
• Install the speaker only in a location that can
structurally support the full weight of the unit and
mounting bracket. Doing otherwise may result in
the speaker falling down and causing personal
injury and/or property damage.
• Since the unit is designed for in-door use, do not
install it outdoors. If installed outdoors, the aging of
parts causes the unit to fall off, resulting in personal
injury. Also, when it gets wet with rain, there is a
danger of electric shock.
• Do not use other methods than specified to install
the speaker. Extreme force is applied to the
speaker and the speaker could fall off, possibly
resulting in personal injuries.
• Use screws that are appropriate for the wall's
material and structure. Failure to do so may cause
the speaker to fall, resulting in material damage
and possible personal injury.
• Ensure that all screws are securely tightened. If
they are loose after installation, the speaker could
fall down, possibly resulting in personal injury.
• Do not mount the speaker in locations exposed to
constant vibration. The speaker or its mounts can
Indicates a potentially hazardous situation which,
if mishandled, could result in death or serious
personal injury.
WARNING
2
2. GENERAL DESCRIPTION AND FEATURES
The BS-678BSB and BS-678BSW are certified according to the European Standard EN 54-24: 2008, the
International Standard ISO 7240-24: 2010 and compliant with the British Standard BS 5839-8: 2008 14-8.
• The BS-678BSB and BS-678BSW, 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.
• A 6.5-inch cone speaker unit delivers high quality sound.
• Two screw terminals (steatite) make cable connections easy and allow bridge wiring.
Indicates a potentially hazardous situation which,
if mishandled, could result in moderate or minor
personal injury, and/or property damage.
CAUTION
3. INSTALLATION
Step 1. Pull out the baffle, and unlatch 2 V-shaped
springs to detach the baffle from the cabinet.
be damaged by excessive vibration, potentially
causing the speaker to fall, which could result in
personal injury.
• Do not use anti-rust lubricant. If it contacts resin or
rubber parts, they could deteriorate and cause the
speaker to fall, possibly resulting in personal injury.
• Do not install the speaker in indoor swimming pools
or such locations where liquid chemicals are used.
The parts deteriorate if corroded, causing the
speaker to fall, which could result in personal
injury.
When the Unit is in Use
• If any of the following irregularities occurs,
immediately switch off the amplifier's power, and
inform the shop from where the speaker was
purchased. Further using the speaker may result in
fire or electric shock.
· If you detect smoke or a strange smell coming
from the speaker
· If water or any metallic object gets into the
speaker
· If the speaker falls, or the speaker case breaks
• To prevent a fire or electric shock, never open nor
remove the speaker case. Refer all servicing to
your nearest TOA dealer.
When Installing the Unit
• Avoid touching the speaker's sharp metal edge to
prevent injury.
• To avoid electric shocks, be sure to switch off the
amplifier's power when connecting speakers.
When the Unit is in Use
• Do not operate the speaker for an extended period
of time with the sound distorting. Doing so may
cause the speaker to heat, resulting in a fire.
• Do not stand or sit on, nor hang down from the
speaker as this may cause it to fall down or drop,
resulting in personal injury and/or property
damage.
• Have the speaker checked periodically by the shop
from where it was purchased. Failure to do so may
result in corrosion or damage to the speaker or the
mounts that could cause it to fall, possibly causing
personal injury.
Cabinet
Baffle
Baffle
Cabinet
V-shaped spring
Squeeze the spring to detach
from the cabinet.
3
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.
Notes
• If the supplied tapping screws are not appropriate for the construction of wall, separately prepare
the appropriate screws.
• The speaker can be installed in a vertical or horizontal orientation. Either concealed in-wall wiring or
open wiring is available for speaker cable connection.
Step 3. Make wiring.
3-1. Insert the lead-in cables (cables from the amplifier) and lead-out cables (cables to other speakers)
into the screw terminals attached to the cabinet.
3-2. Insert the fasten s fitted at the ends of the
HOT and COM cables from the screw
terminals on the cabinet into the taps of the
matching transformer on the speaker unit.
Connect the COM cable to the transformer's
COM tap, and the HOT cable to the desired
transformer's input tap (Refer to the figure at
right.)
The table at right shows the relationship
between impedance and input power.
Impedance 1.7 kΩ 3.3 kΩ 6.7 kΩ 13 kΩ
100 V line 6 W 3 W 1.5 W 0.8 W
70 V line 3 W 1.5 W 0.8 W 0.4 W
[Cabinet mounting dimensions]
Notches for open wiring
Screws for
horizontal mounting
Screws for
vertical mounting
Cabinet
Screw terminal
Tapping screws 4 x 35 (accessory)
(0.2)
3-ø5
(7.48)
190
83.5
(3.29)
(9.84)
250
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)
Unit: mm (in)
83.5
(3.29)
Cabinet outside
dimensions
From the
amplifier
COM
5 mm (0.2")
To the next
speaker
HOT
Earth
COM
HOT (black)
HOT
Matching transformer
1.7kΩ
3.3kΩ
Earth
Screw terminal
13kΩ
6.7kΩ
COM
COM (white)
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