Toa BS-20W-WHT, BS-20W Instruction Manual

2. GENERAL DESCRIPTION

TOA's BS-20W and BS-20W-WHT are two-way, wall-mounted, splashproof speakers. Their directivity of 30°C
horizontal and 90°C vertical makes them ideal for installation in railroad stations. Applications of these
speakers include uses at outdoor locations under eaves which can avoid direct water splash and at highly
humid locations including locker rooms of shower rooms, swimming pools, and bath rooms.

3. INSTALLATION

Depending on the place to install, use the speaker's bracket solely or together with an optional mounting bracket.
The mounting holes provided with the speaker's bracket are shown below.

Precautions

• Fix the speaker securely to the wall using anchor bolts or other devices suited to the wall construction and materials.

• The speakers must be mounted facing downward because the rain could enter the speaker inside, causing
the speakers to fail.

BS-20W
BS-20W-WHT

Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy for future reference.

1. SAFETY PRECAUTIONS

• Be sure to read the instructions in this section carefully before use.

• Make sure to observe the instructions in this manual as the conventions of safety symbols and messages
regarded as very important precautions are included.

INSTRUCTION MANUAL

SPLASHPROOF SPEAKER

When Installing the Unit

• Install the speaker only in a location that can
structurally support the weight of the speaker and
the mounting bracket. Doing otherwise may result
in the speaker falling down and causing personal
injury and/or property damage.

When the Unit is in Use

• 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.

WARNING

Indicates a potentially hazardous situation
which, if mishandled, could result in death or
serious personal injury.

CAUTION

Indicates a potentially hazardous situation
which, if mishandled, could result in moderate
or minor personal injury, and/or property
damage.

79 7942

70

M5 hole (2 places)*

2

ø6 hole (4 places)*

1

*1 Holes for mounting the speaker's bracket
*

2

Holes for mounting an optional bracket

(Unit: mm)

4. IMPEDANCE CHANGE

When changing the impedance, remove a waterproof cap as
shown in the figure on the right, then set the slot to the desired
impedance using a screwdriver. (In the figure, the impedance is
set for 500 Ω.) Replace the cap after setting completion.

Note: The impedance is factory-preset for 500 Ω (20 W).

5.

SPECIFICATIONS

Note: The design and specifications are subject to change without notice for improvement.

133-01-296-7B

BS-20W BS-20W-WHT

Sealed type

20 W

500 Ω (20 W), 670 Ω (15 W), 1 kΩ (10 W), 2 kΩ (5 W)

94 dB (1 W, 1 m)

100 – 20,000 Hz

– 20 to +55°C (No dew condensation must be formed.)

Mid/low: 13 cm dynamic speaker
High: Constant directivity horn 30° x 90° with splashproof piezo driver

Enclosure: ABS resin, paint
Grille and bracket: Rolled steel plate, zinc plating, paint
Bracket fixing bolt:Stainless steel

Black White

342 (w) x 200 (h) x 175 (d) mm

3.6 kg

HY-W333B HY-W333W

Model
Enclosure Type
Rated Input
Rated Impedance
Sound Pressure Level
Frequency Response
Operating Temperature
Range
Speaker Component

Finish

Color
Dimensions
Weight
Optional Bracket

500

Ω

2 kΩ

670

Ω

1 kΩ

Waterproof cap

Slot

Input Impedance

500 Ω 670 Ω 1 kΩ 2 kΩ

Rated Input

20 W 15 W 10 W 5 W

• Avoid mounting the speakers directly to ski lift poles or other objects that give the speakers great shocks, as
doing otherwise could cause the speakers to fail.

• The speaker cannot be used in locations that always expose the unit to water splash (such as locations
close to a swimming pool) or in locations of high temperature and humidity where dew condensations could
be formed. Also, do not dash water directly over the unit.