Toa BS-633A Installation Manual

WALL MOUNT SPEAKERS
BS-633A
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.
WARNING
Indicates a potentially hazardous situation which, if
mishandled, could result in death or serious personal
injury.
• 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 speaker falling down and causing
personal injury and/or property damage.
CAUTION
Indicates a potentially hazardous situation which, if
mishandled, could result in moderate or minor personal
injury, and/or property damage.
• Do not operate the speaker 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 speaker as this
may cause it to fall down or drop, resulting in personal injury
and/or property damage.
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

2. GENERAL DESCRIPTION

The BS-633A and BS-633AT are wall mount speakers made of
ABS resin and can be hooked or mounted directly on the wall.
The push-in type input terminal makes cable connections easy
and allows bridge wiring. The input impedance can be easily
changed by changing the tap position of the transformer from
the rear side of the speaker.
Besides the above features, the BS-633AT has a built-in
attenuator and can be connected to a 2-wire and 3-wire
systems.

INSTALLATION MANUAL

BS-633AT

3. INSTALLATION

3.1. Wall Mounting by Hooking the Speaker onto Screws

Step 1. Mount the 2 supplied wood screws to the wall 120 mm
(4.73") apart, leaving the heads projecting 8 – 10 mm
(0.31" – 0.39") from the wall surface.
Step 2. Connect the speaker cable to the speaker's push-in
terminal block.
Note: Bridge wiring can also be performed. For more
information on connection procedures, refer to
the section "CONNECTIONS."
Step 3. Using the distance markers provided on the top of the
speaker, align the mounting holes in the rear panel of
the speaker with the protruding screws, and hang the
speaker on the wall.
Push-in terminal
Distance marker
2
Input specification label
Mounting hole

3.2. Wall Mounting by Directly Screwing the Speaker

Step 1. Connect the speaker cable to the push-in terminal block.
Note: Bridge wiring can also be performed. For more
information on connection procedures, refer to
the section "CONNECTIONS".
Step 2. Using the 2 supplied tapping screws, fix the speaker to
the wall.
2
Tapping screw 4 x 16
(accessory)

4. CONNECTIONS

Use the following cables for connections.
· Solid wire: ø0.8 to ø1.6 mm
(equivalent to AWG 20 – 14)
· Stranded wire (7-core): 0.75 to 1.25 mm
(equivalent to AWG 18 – 16)
Step 1. Using the cable strip gauge printed on
the input specification label, trim cable
sheath 9 mm (0.35") from cable end.
Step 2. Insert the cable fully into the round hole in the terminal
block.
Step 3. To remove the cable, pull it out while pressing the
terminal block button.
1
3
120 mm (4.73")
8 – 10 mm (0.31" – 0.39")
Wall
Tapping screw 4 x 35 (accessory)
Push-in terminal
1
2
9 mm
(0.35")