5.25" 100W 2-Way Outdoor Weather-Resistant Rock Speaker Pair (Sandstone Canyon Brown, Slate Dark Grey, or Granite Light Grey) - RX550

  • Polypropylene Cone Woofer
  • 3/4" Tweeter
  • 100 Watts
  • Perfect for background music or public address

The RX550 5.25" Rock Speakers look like natural rocks and are perfect for small to medium size backyard or patio. Place anywhere natural rock would be found and you'll hardly notice they are there. You will notice the sound, however, from the 100W power rating and polypropylene cone woofers. These speakers are rugged and specially constructed with weather resistant components for years of trouble free performance. The polypropylene woofer and stamped aluminum tweeter are acoustically matched to give you clear vibrant sound with good bass characteristics.

Installing Rock Speakers
Installing these speakers can be very simple; just decide where you want them to go and run the speaker wire from the desired sound source. Most outdoor speakers are passive devices, which means they do not have built-in amplification and will need a source of power. Most customers connect their outdoor speakers directly to household amplification, that is directly to a home receiver or outboard receiver stored safely in a tool shed or other covered space where it is protected from the elements. The OSD team recommends you bury it 4-6” underground so that it's not visible nor pose a danger of somebody tripping over it. We also recommend using CL3 rated outdoor speaker wire specifically designed for the outdoors.

Extremely Durable
Many OSD Audio customers ask if our rock speakers can take a "Chicago winter" or an "Arizona summer," and we tell them yes. The enclosure and internal components are specially designed and sealed against all kinds of weather. We also remind folks, however, that it's not a bad idea to store the speakers during months when no one would dare to be outside. Doing this will only add to the longevity of your new outdoor speakers.

Please Note! To improve longevity of the surface quality on our outdoor speakers, place the rocks in a shaded area to prevent color fade from too much direct sunlight. It is recommended to keep our outdoor speakers out of contact with any chemicals that may be present in your yard. We encourage you to bring the speakers indoors or cover them up during the off seasons to ensure a longer life for the speaker.


  • All-weather components withstand rain, high temperatures, and other harsh weather conditions
  • Acoustically inert enclosure made from aerospace grade multi-layer composite cabinetry
  • Designed specifically for outdoor environments with excellent sound quality
  • Available in different colors to match your environment.

Additional Information

More Information
ManufacturerOSD Audio
  • Speaker type: Weather-resistant multi-purpose rock speaker
  • Woofer: 5.25" dual polypropylene cone with butyl rubber surround
  • Power handling: 100 watts
  • Frequency response: 65Hz to 20kHz
  • 88dB
  • Dimensions: 8" H x 9" W x 9" D
  • Pack weight: 12 pounds for both together
  • Unit: Pair
  • 1-year warranty
Granite Light GreyOSD-RX550WHT
Sandstone Canyon BrownOSD-RX550Brown
Slate Dark GreyOSD-RX550SLATE
California's Proposition 65
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