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.
• We also recommend you keep this instruction manual handy for future reference.
• 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.
• 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.
• Tighten each nut and screw securely. Ensure that the mounting hardware has no loose joints after
installation to prevent accidents that could result in personal injury.
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.
PC-139
HEAT-RESISTANT HORN SPEAKER
Ceiling Suspension Type
INSTRUCTION MANUAL
2. GENERAL DESCRIPTION
TOA's PC-139 is a high-efficiency, heat-resistant ceiling suspension-type speaker designed exclusively to be
used in conjunction with emergency broadcast systems.
3. SPECIFICATIONS
Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.
WARNING
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
CAUTION
Note:
The design and specifications are subject to change without notice for improvement.
• Included components
Speaker unit (with mounting bracket B) ...... 1
Mounting bracket A ...................................... 1
Suspension pipe .......................................... 1
Decorative cover .......................................... 1
M4 x 30 screw .............................................. 2
4.1 x 32 wood screw .................................... 2
Rated Input
1 W
Rated Impedance
10 k
Ω
Sound Pressure Level
100 dB (1W, 1m)
Frequency Response
500 – 10,000Hz
Heat Resistance
Operates normally for 15 minutes in air current of 380°C
Withstand Voltage
1 kV AC, 1 minute (between input terminal and body)
Insulation Resistance
500 V DC, over 10 M
Ω
(between input terminal and body)
Speaker Angle Adjustment Range
Horizontal: 360° rotation, Vertical: 90° rotation
Mounting Pitch
65 – 85 mm
Finish
Speaker: Incombustible material (aluminum), off-white, paint
Weight
1.7 kg (including mounting brackets and hardware)
