About Sound Levels
To choose an alarm or speaker that’s loud enough, first determine the decibel (dB) rating of background noise.
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About Hazardous Location Environmental Ratings
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Horn-Shaped Speakers
The horn-shaped design focuses the sound projection toward listeners.
Note: For speakers with several wattage options, the higher the watts, the louder your speaker will be. If you're connecting several speakers to one amplifier, the total watts of all speakers should not exceed the maximum wattage of the amplifier.
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | Mounting Location | Power, W | Max. Volume  | Environment | For PA System Type | Voltage | Ht. | Wd. | Dp. | Material | Fasteners Included | No. of | Dia. | Each | |
| A | Ceiling, Wall | 15 | 120 dB @ 4 ft. | Outdoor | 8 ohms | __ | 6 1/4" | 6 1/4" | 6" | Enamel-Coated Steel | No | 3 | 3/8" | 0000000 | 000000 |
| B | Ceiling, I-Beam, Wall | 1, 2, 3.8, 7.5, 15 | 108.37 dB @ 10 ft. | Outdoor | __ | 25V AC 70V AC 100V AC | 8 3/4" | 7 7/8" | 9 3/8" | Epoxy-Coated Aluminum | No | 3 | 1/4" | 0000000 | 000000 |
| B | Ceiling, I-Beam, Wall | 2, 3.8, 7.5, 15, 30 | 113.37 dB @ 10 ft. | Outdoor | __ | 25V AC 70V AC 100V AC | 11" | 10" | 10 1/2" | Epoxy-Coated Aluminum | No | 3 | 1/4" | 0000000 | 000000 |
Hazardous Location Horn-Shaped Speakers
These speakers are rated for environments where hazardous material is present. The horn-shaped design focuses the sound projection toward listeners. Speakers are NEMA 4X rated for protection from corrosion and washdowns.
Hazardous location environmental ratings indicate whether manufacturers have included safety features in products to facilitate their safe use in a hazardous environment. Before selecting a product for a hazardous location, ensure it is rated for your environment. See About Hazardous Location Environmental Ratings.
| Mounting Location | Power, W | Max. Volume | Environmental Rating | Volume Control | Voltage | Ht. | Wd. | Dp. | Material | Fasteners Included | Each | |
For Corrosive, Hazardous Location, Outdoor, Washdown Environments | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wall | 15 | 110 dBA @ 10 ft. | NEC Class I Division 2 Groups A, B, C, D NEC Class II Division 2 Groups F, G NEC Class III Divisions 1, 2 IP66 IP69K NEMA 4X | Adjustable | 25V AC 70V AC | 12 1/4" | 8" | 8 1/4" | Painted Aluminum | Yes | 0000000 | 0000000 |
Dual Horn-Shaped Speakers
The dual horn-shaped design focuses the sound projection toward listeners in two directions.
Note: Each speaker has several wattage options—the higher the watts, the louder your speaker will be. If you're connecting several speakers to one amplifier, the total watts of all speakers should not exceed the maximum wattage of the amplifier.
Mounting Holes | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mounting Location | Power, W | Max. Volume | Environment | Voltage | Ht. | Wd. | Dp. | Material | Fasteners Included | No. of | Dia. | Each | |
| Ceiling, I-Beam, Wall | 1.8, 3.7, 7.5, 15, 30 | 121 dB @ 4 ft. | Outdoor | 70V AC | 9 5/8" | 15 3/4" | 12 1/8" | Epoxy-Coated Aluminum | No | 3 | 1/4" | 0000000 | 0000000 |