Cooper Wheelock ST-B4 Specification

Series ST Paging Speakers and Horns
Provides clear, audible output for voice
paging, background music and tone
alerting.
Available features and options:
4", 8"
Flush mount, surface mount
Weatherproof horns
Grilles: Metal, plastic
Color: White, beige
Series ST
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Series ST-H15-B
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6-8 06/06
Paging Speakers
4", surface mount
ST-B4
8", fl ush mount
ST-C8
ST-C8M (metal)
8", fl ush mount
Recessed volume control
ST-C8V
ST-C8MV (metal)
Paging Horns
8" D, 15 Watt
ST-H15-B
10", 30 Watt
ST-H30
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Order Code
dBA @ 1 meter Frequency Response
White 4116
4"
8"
White 4114
White 8474
Transformer taps in watts: 1/8, 1/4, 1/2, 1, 2, 4
Sound output measured at 1W @ 2KHz for ST-B4,
White 4871
ST-C8, ST-C8V, ST-C8MV.
White 8475
Order Code
Beige 5147
15 Watt
30 Watt
Beige 5148
Full rated power for ST-H15-B and ST-H30.
ST-H30 Wattage Selector Switch Positions
1
70V 2.0
25V 0.3
100V 4.0
ST-H15-B Wattage Selector Switch Positions
1
70V 1.0
25V -
100V 2.0
(800) 631-2148 • www.cooperwheelock.com
93 200 Hz, 10 KHz
95 80 Hz, 14 KHz
dBA @ 1 meter Frequency Response
122 275 Hz, 10 KHz
125 275 Hz, 10 KHz
2 3 4 5 6
3.8 7.5 15.0 30.0 -
0.5 0.9 1.9 3.7 6.9
7.7 15.0 30.0 - -
2 3 4 5 6
2.0 3.8 7.5 15.0 -
- 0.48 0.94 1.9 7.5
3.8 7.5 15.0 - -
7
-
13.9
-
7
-
15.0
-