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SKU: KIT-RX640-PAR 150W High Performance 6.5" Rock Speaker Pair, Sandstone Canyon Brown or Granite Grey - RX640

Purchase 150W High Performance 6.5" Rock Speaker Pair, Sandstone Canyon Brown or Granite Grey - RX640
  • SKU: KIT-RX640-PAR rshide6paros

    150W High Performance 6.5" Rock Speaker Pair, Sandstone Canyon Brown or Granite Grey - RX640

  • $109.99

    Compare at: $169.99 You Save $60.00

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Sold as pair, the RX640 is a very popular landscape rock speaker for backyards, pools and gardens. Part of the fun is disguising the speakers so choose a color that best matches your landscape and place the speakers where a natural rock would be found. Typical locations for the rock speakers include rock formations for barriers around pools, ponds and spas or bordering a garden and even as an accent in flower gardens.

You'll Enjoy Great Sound
Customers are always pleasantly surprised by the sound quality of our RX640s. The 6.5" polypropylene woofer and 1" dome tweeter are acoustically matched to give you clear vibrant sound with good bass characteristics. If you're worried about how long they will last, rest assured that this two-way (woofer and tweeter) rock speaker system utilizes weather-resistant components for years of trouble-free performance.

  • Hide in plain sight - friends wont know where the sound is comping from
  • 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: 6.5" 2-Way Weather Resistant Rock Speakers
  • Woofer: 6.5" Polypropylene Cone with Sealed Voice Coil
  • Tweeter: 1" Coaxial Polyamide
  • Frequency Response: 39Hz - 22kHz
  • Power handling: 150W
  • Sensitivity: 91 dB
  • Impedance: 8 Ohms
  • Weather Resistant: All-Weather Versatility
  • Aerospace Grade, Multi-layer Composite Cabinetry
  • Unit Dimensions: (L x H x D) 14" x 12" x 12"
  • Sold As: Pair
  • Wireless: No
  • Colors Available: Sandstone Canyon Brown, Granite Grey
  • Weight: 26 lbs
  • Warranty: 1 Year
25 Questions asked on 150W High Performance 6.5" Rock Speaker Pair, Sandstone Canyon Brown or Granite Grey - RX640

Jackson • 12/17/2019, 2:17:43 PM Q can these speakers be input directly into an iPod or other Mp3 device or do they have to go thru an amp?
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Jackson, You need to connect to an amplifier first before connecting to the RX640 speakers. Our AMP120 allows you to connect two sources and automatically switch between them. Input number one takes priority while it is active. When you turn source one off, the second source starts to play after a brief pause. We have all the cables you need to connect to the amplifier from your iPod and the speaker wire you need to run to your rock speakers. TL/MA
James • 12/17/2019, 2:17:43 PM Q Already own some of your other products and have no complaints. Are these speakers able to be directly rained on? They will be outside during the summer months at the cottage, and we will not always be able to bring them in if it rains.
Customer Service • 12/17/2019, 2:17:43 PM
A Hi James, Our speakers are designed specifically for the outdoors and can withstand rain. Any extra protection you can give them in extreme weather is always recommended. We suggest covering them or brining them inside during heavy storms. The extra protection will only add to the longevity of your investment. CL/MA 1321
Randy • 12/17/2019, 2:17:43 PM Q Can these speakers be hooked up to a T.V. that uses digital audio coxial cable?
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Randy, Most TVs have pre-amplified speaker outputs that are either variable (controlled by TV's remote) or fixed (controlled by whatever amplifier or receiver it is connected to before connecting the speakers). The RX640 rock speakers are passive and need an amplifier or receiver to power them. A digital coax connection would be for connecting to an audio/video receiver that features a digital input. There are Sound Bars that feature a digital input for direct connection to the TV. TL/MA #1687
Nooh • 12/17/2019, 2:17:43 PM Q I had 4 pairs of RX640 rock speakers. Is RX-5502 stereo receiver able to handle these speakers?
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Nooh: The RX-5502 is not Multi-Voltage so it will not work in Egypt. You would be better off using something like our AMP200 with a SSVC4 Speaker Selector with Internal Impedance matching Volume Controls or DSM4 a passive unit w/o Volume Controls and four individual OVC300 Volume Controls. TL-2135
Trent • 12/17/2019, 2:17:43 PM Q Is there a difference in sound between the AP 640 and the RX 640? Considering the price is about the same which would you recommend?
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Trent, The rock speaker will produce a fuller sound, due to the rock shell design, and can be out in the rain. The AP640 is still a nice choice, and a very popular one among our customers, but I would go with the rocks. Thanks!