Cooper Wheelock STH15SR Also known as: STH15SR, WH-107938 The COOPER-WHEELOCK-STH-15SR is a red horn speaker with multi-tap transformer and capacitator for line supervision. The speaker is designed for multiple power requirements with high dBA output at each power tap. The STH-15SR offers a choice of field selectable taps, 1 to 15 Watts for either 25VRMS or 70VRMS audio systems.
The STH-15SR design incorporates a compression driver, mounted on a double re-entrant horn for maximum output at minimum power across a frequency range of 400 to 4,000Hz. The speaker line inputs are compatible with standard reverse polarity supervision of circuit wiring by a Fire Alarm Control Panel (FACP). A capacitor is wired in series with the multi-tap transformer for this purpose. |
Features:
- Supervised weather proof horn speaker
- Up to 15 watts RMS of power handling capability
- Superior intelligibility and sound dispersion
- Built-in 25/70 Volt transformer w/screwdriver adjustable wattage tape selector
- Frequency Response: 400 14,000 Hz
- Power taps: 25 Volts: .48, .94, 1.8, 7.5, and 15; 70 Volts: .9, 1.8, 3.8, 7.5, and 15
- Swivel mounted for easy angle adjustment
- Complies with UL Standard 1480
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