TH Horn
STH-15S Supervised Horn
Available features and options:
Color: Red or Gray
Mounting: Wall or Ceiling
15 watt high effeciency Compres-
sion Driver
Weather resistant, vandal resistant
25/70/100V transformer
5 mfd capacitor for line supervision
Univeral mounting bracket (SHMP)
Approvals: UL Standard 1480,
CSFM
Equipped with a compression driver
providing up to 15 watts of power
handling capability, superior intelligibil-
ity and dispersion to achieve maximum
sound projection and penetration.
Horn
Order Code
STH-15-S
Gray
7937
STH-15-SR
Red
7938
Adapter Plate
SHMP-R
Red
8154
Setting Impedence
(Ohms)
(Ohms)
70.7 Volts
25 Volts
100 Volts
Watts
dB@ 10 ft
dB@ 10 ft
Watts
dB @10 ft
dB @10 ft
Watts
dB @10 ft
dB @10 ft
1
5,000
0.9W
90
Not used
Not used
2.0W
93
2
2,500
1.8W
93
Not used
Not used
4.0W
96
3
1,300
3.8W
96
0.48W
87
7.5W
99
4
666
7.5W
99
0.94W
90
15.0W
102
5
333
15.0W
102
1.8W
93
Not used
Not used
6
89
Not used
Not used
7.5W
99
Not used
Not used
7
45
Not used
Not used
15.0W
102
Not used
Not used
8.13
7.90
Power Rating:

15 Watt Continuous
Frequency Response:
400-4,000 Hz
Sensitivity:

102 dB @ 15 Watts @ 10ft
Dispersion Angle:
70° (-6 dB @ 2,000 Hz Octave Band)
Anechoic Measurements:

Code 3 Tone:
107.2 dBA

Slow Whoop:
108.5 dBA

Siren:
107.8 dBA
Please reference the back of this catalog for
more information on mounting options.
SHMP
4.28
4.28