Wheelock STH-15SR-ULC | Supervised Weatherproof Horn Loudspeaker
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Wheelock STH-15SR-ULC | Supervised Weatherproof Horn Loudspeaker
Description
Description
The Wheelock Supervised Weatherproof Horn Loudspeaker STH-15SR-ULC is a vandalproof wheelock horn surface-Mounting, high-efficiency unit for life safety and communication system applications. They provide high-intelligibility voice reproduction and signal transmission for indoor or outdoor emergency alarm and protective signaling.
This horn is equipped with a compression driver providing up to 15 watts RMS power handling capability, superior quality intelligibility and dispersion to achieve maximum sound projection.
Weather-resistant metal construction and reentrant acoustic path assure protection against water, humidity and corrosion. The Mounting bracket allows directional sound dispersion via vertical and horizontal positioning. Provisions are also included for surface or strap Mounting to pillars and I-beams.
This weatherproof loudspeaker includes a built-in 25/70 V transformer featuring a screwdriver adjustable, 7-position watt/impedance selection switch. Wiring terminals are protected with a vandal-resistant adapter cover for control equipment utilizing cable or conduit.
Wheelock - STH-15SR-ULC - Features
- Approvals: ULC Standard CAN/ULCS541-2016 for speakers.
- 15-Watt high-efficiency compression driver
- Weatherproof & vandalproof aluminum construction assures protection against water, humidity and corrosion
- Reentrant acoustic path
- 25/70 V transformer featuring a screwdriver adjustable, 7-position watt/impedance selection switch
- Capacitor for line supervision
- STH-15S-ULC gray-baked epoxy finish; STH15SR-ULC red-baked epoxy finish
- Simple, universal Mounting bracket adjustable in horizontal and vertical planes with banding slots for beam or pillar Mounting
- Installation terminals and power selector are recessed mounted, and protected by the metal interface adapter, or clear plastic shield
Specifications
Specifications
Wheelock - STH-15SR-ULC - Specifications
| Dispersion angle | 70 Degrees |
|---|---|
| Weight | 4.5 lb |
| Power rating | 15 Watt continuous |
| Frequency response | 400–4,000 Hz (nominal) |
| Sensitivity | 102 dB @ 15 Watts @ 10 ft |
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