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SKU: OSD-RX550-PAR 5.25" 100W Outdoor Weather-Resistant Rock Speaker Pair, Brown, Dark Grey, or Light Grey - RX550

Purchase 5.25" 100W Outdoor Weather-Resistant Rock Speaker Pair, Brown, Dark Grey, or Light Grey - RX550
  • SKU: OSD-RX550-PAR rxpe51parosp

    5.25" 100W Outdoor Weather-Resistant Rock Speaker Pair, Brown, Dark Grey, or Light Grey - RX550

  • $69.99

    Compare at: $129.95 You Save $59.96

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The OSD Audio RX550 5.25-Inch Outdoor Rock Speakers provide superb sound quality. They look right at home by the pool, in the garden or in any other outdoor environment. Ideal for residential or commercial use in hotels, resorts, alfresco dining and country club settings, the OSD RX550 Outdoor Rock Speakers let you create the perfect audio in nearly any environment. These rock speakers are housed in an acoustically inert enclosures that are designed from aerospace-grade, multi-layer composite cabinetry. With all-weather construction that withstands high temperatures, rain and other severe weather conditions, these faux rock outdoor speakers are available in brown, slate and white granite styles.

• 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

Do I need special cable to run outdoor speakers?
We strongly recommend our direct burial, CL3/FT4 waterproof cable and wire connectors that are designed for the outdoors. Our speaker wire uses a specially formulated UV-resistant, white polyethylene jacket that provides protection against water damage and allows the cables to withstand extreme weather conditions like rain, snow and high temperatures and incorporate twice the insulation of average cable. If you plan to bury the cable, OSD recommends you bury it 4-6" underground so that it's not visible nor pose a danger of somebody tripping over it. Our speaker cable is ideal to use in direct burial applications. As for the gauge, for runs up to 100 feet for background music, 16-gauge will be fine. If the run is approaching or exceeding 100 feet, we suggest 14-gauge wire. 

Add Volume Controls
Volume controls can be a great addition to a system providing both proper impedance matching and more hands-on local control of the volume in the listening area. We offer a great selection of outdoor volume controls to choose from!

Extremely Durable
OSD outdoor speakers are developed with harsh conditions of the outdoors in mind. Our rock speakers use only non-water-absorbing materials and won't absorb any water. This is critical in winter so it won't freeze and crack. The shape is designed to withstand large amounts of pressure, extreme temperatures and moisture. Remember though, outdoor speakers are an investment, so take care of them. Storing them away from extreme weather conditions will only lengthen the time you will get enjoying outdoor speakers. These rock speakers utilize weather-resistant components for years of trouble free performance.

Warning: California's Proposition 65


This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to

  • Speaker Type: 5.25" 2-Way Weather Resistant Rock Speakers
  • Woofer: 5.25" Dual Polypropylene Cone with Butyl Rubber Surround
  • Frequency Response: 65Hz to 20kHz
  • Power handling: 100W
  • Sensitivity: 88 dB
  • Impedance: 8 Ohms
  • Weather Resistant: All-Weather Versatility
  • Aerospace Grade, Multi-layer Composite Cabinetry
  • Unit Dimensions: (L x H x D) 9" x 8" x 9"
  • Sold As: Pair
  • Wireless: No
  • Colors Available: Sandstone Canyon Brown, Slate Dark Grey, or Granite Light Grey
  • Weight: 12 lbs
  • Warranty: 1 Year
18 Questions asked
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deb gresh • 12/17/2019, 2:17:43 PM Can we plug into our flat screen we have on our deck? Would like to put speakers on pation below so we can hear TV a little better, during football season and bonfires :)
Customer Service • 12/17/2019, 2:17:43 PM
Deb, These rocks are passive so they need something like an AMP or receiver to power them. Even a stereo would power them and you can defiantly use your TV as an audio source by connecting it with an RCA (red and white) to the amp or receiver. You are unable to wire them, you might consider wireless speakers. We have the WR150 and larger WR800 that are basically just plug and play. They are self powered. CL
deb gresh • 12/17/2019, 2:17:43 PM Can we plug into our flat screen we have on our deck? Would like to put speakers on pation below so we can hear TV a little better, during football season and bonfires :)
Customer Service • 12/17/2019, 2:17:43 PM
Hi Deb: These speakers are passive and need to have some sort of power source. Do you have a clean dry area where you can mount a small amplifier like our AMP120. It features automatic source switching. Your TV could be connected to Line 1 while connecting an iPod or iPhone to Line 2 input. While the TV is playing it would take priority over the Line 2 (iPod). Once you turn the TV off, line 2 would become active an you could play whatever you had connected. You could also select our wireless Rocks or Patio speakers which the TV would plug directly into the Wireless Transmitter. The audio signal would be sent to the main Rock or Patio speaker that has the Wireless Receiver and Power Amplifier built-in. The second speaker in both cases (rock or patio) needs to be hard wired from the main speaker with a supplied cable. In both cases you will need to be able to connect a Power Supply for the Transmitter (connected to the TV) and also big Power Supply to the Main rock as well. Checkout or WR-800 Wireless Rock Speaker or the WPA-650 Wireless Patio Speaker. Those are a couple of your choices. TL/MA
Joe • 12/17/2019, 2:17:43 PM What wattage amplifier do I need to power these speakers? I see the specification is 100 Watts. Is that for both? Lets say they are 50 watts each max. Then do I need a 100 watt amplifier?
Customer Service • 12/17/2019, 2:17:43 PM
Joe, Most receivers are about 100watts per channel, those would work out ideal. You could get by with a smaller amp but you would not be using the speaker to their full potential CL
Dominic • 12/17/2019, 2:17:43 PM Hello, I have the following stereo shelf system Sony MCH-E609ip and I would like to know if i can connect two pairs of RX550 on it? I will keep the two original speakers connected to the system in my toolshed, and split the wires to connect the rock speakers, is this the right way to do it? The spcifications on the system says that the speaker impedance is 12 ohms. Her's the link to the system: Thanks for your help.
Customer Service • 12/17/2019, 2:17:43 PM
Hi Dominic, Stereos have as many outputs as speakers they can drive. We would not recommend wiring in this manner. For two pairs of speakers, consider a receiver like the Sherwood RX4105 to drive them. CL/MA 1962
Erin • 12/17/2019, 2:17:43 PM Am I able to connect an ipod/ iphone up to these?
Customer Service • 12/17/2019, 2:17:43 PM
Thanks for the question. The RX550 need to be powered by an amplifier, thus you wouldn't be able to run a mobile device directly to the speakers, but you can run your iPhone to the amp which would then power the speakers. You may be interested in our WR-150 wireless rock speaker system, in which you would be able to run your device to the transmitter in this system. Call us at 562-697-2600 to discuss! -BM 2068