About the Niles OS7.3
Dynamite indoor/outdoor speakers
Dynamite indoor/outdoor speakers
Niles OS7.3 speakers are so versatile. They're rugged enough to be placed under eaves on the back porch, and good-looking enough to blend into your decor. Each has a 7" woofer for solid bass, plus a 1" silk dome tweeter for warm, nuanced highs. There's an integrated mounting bracket to help with installation, wherever you choose to put them.
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Product highlights:
- 7" woofer with waterproof mica-filled polypropylene cone
- 1" silk dome tweeter
- frequency response 65-21,000 Hz (±3dB)
- sensitivity: 90 dB
- impedance: 8 ohms
- handles up to 100 watts RMS
- integrated mounting bracket
Dimensions and warranty:
- 8-3/16"W x 14-1/4"H x 9-3/16"D
- warranty: limited lifetime
- Our 60-day money-back guarantee
- MFR # FG00991
What's in the box:
- 2 White indoor/outdoor speakers (with metal mounting bracket and two screw knobs installed)
- 2 White shelf stands
- 2 Clear plastic paint masks
- Installation Guide
- Limited Warranty card
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More details on the Niles OS7.3

Features & specs
Enclosure | Acoustic Suspension | |
Tweeter Type | Soft-Dome | |
Midrange Size | None | |
Woofer Size | 7 | |
Woofer Composition | Polypropylene | |
Woofer Surround | Butyl rubber | |
Power Range (watts) | 5-150 | |
Sensitivity | 91 dB | |
Impedance (ohms) | 8 | |
Frequency Response | 65-21k Hz | |
Connector Type | 5-way post | |
Height (inches) | 14-1/4 | |
Width (inches) | 8-7/8 | |
Depth (inches) | 8-15/16 | |
Weight (pounds) | 8.91 | |
Mounting Bracket Included | Yes | |
Parts Warranty | Limited Lifetime | |
Labor Warranty | Limited Lifetime |
Product Research
Features
Indoor/Outdoor Loudspeaker: The Niles Audio OS7.3 indoor/outdoor speakers are designed for outdoor installations, or for use indoors. They come with an integrated mounting bracket for outdoor installations, and a shelf stand for placement on a bookshelf. These high performance speakers are housed in weatherproof enclosures that can handle extreme hot, cold, and moist environments.
Note: The Niles Audio OS7.3 is packaged as a pair.
Weatherproof: Niles Audio OS speakers are designed to exceed the military's strict specifications for preventing corrosion (MIL-STD-883D).
Drivers: Each OS7.3 features a 7" Mica-filled Polypropylene cone woofer and a 1" Ultrasilk dome tweeter. The integrated woofer/baffle design increases the cone area, which enhances the low frequency response. The butyl rubber woofer surround helps damp resonance and provides exceptional durability. The fluid-cooled tweeter has an ultra-wide dispersion pattern to give you clear, detailed high frequencies.
Speaker Terminals: The OS7.3 is equipped with a pair of inverted 5-way binding post terminals, which repel moisture. The terminals can accept up to 12-gauge bare speaker wire, pin connectors, spade lugs, and dual and single banana plugs. For wire runs of less than 80 feet, 16- to 18-gauge wire is recommended. You should use 14-gauge wire for runs of 80-200 feet, and 12-gauge wire for runs over 200 feet.
Paintable: The OS7.3 speakers and removable grilles can be painted to match your décor. Each speaker includes a clear plastic paint mask let you cover the drivers while the paint is applied to the enclosure.
Installation: The speakers can be mounted vertically or horizontally with the integrated bracket, which attaches to the speaker on the top and bottom with easy-to-remove screw knobs. The bracket has a variety of holes for permanent installation by screws or nails. There are also two keyhole slots for easy removal, if desired. The bracket also has a hole for passing through the speaker wire. There is a 1/4"-20 threaded insert on the back for use with 3rd party wall mount brackets.
Shelf Stand: For shelf placement, the OS7.3 comes with a 3-point shelf stand. After removing the bracket, the stand can be secured to the speaker by the bottom screw knob. The shelf stand adds approximately 3/8" to the overall height of the speaker.
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