Secure Checkout
We are shipping today , Free Shipping On Orders Over $50
Your Shopping Cart Is Empty

Secure Checkout

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

  • Color:  

Calculate Shipping


Lifetime Tech Support

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

Jon S • 12/17/2019, 2:17:43 PM Q I noticed that the speakers are rated at 150W. My Denon receiver is only 80w p/channel. Is that enough and if not what is the minimum that these speakers require to sound good?
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Jon: These speakers are typically rated at 10 to 150 watts. You will notice the sensitivity is 91 dB which means there are efficient and do not take a lot of power to make them work. They will be a perfect match for your Denon Receiver which like all Denon products are usually very good. TL/4380
Ryan • 12/17/2019, 2:17:43 PM Q Would these be a good candidates to run as a satellites with the Sub200? Looks like the recommended RS660s are discontinued.
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Ryan: The RX640 will work perfectly with the OM SUB 200. TL/4587
Jason • 12/17/2019, 2:17:43 PM Q I have a pair of AP650ís being driven by an Amp120 outside right now that I purchased a few weeks ago. Can I add a pair of these rock speakers to the Amp120 or would I need to upgrade to an amp200?
Customer Service • 12/17/2019, 2:17:43 PM
A HI Jason: If you are planning to add a second pair of speakers and hoping to play both at the same time you would definitely be better off purchasing the AMP200. You do have a 30 day performance guarantee on the AMP120 if you bought it directly from Outdoor Speaker Depot. You could exchange it and purchase the AMP200. If you purchased it directly from AMAZON they also have a 30 day return policy and you could return the unit and purchase a replacement from them.The upgrade to the AMP200 is a smart move. Note: Push the speaker A button in on the AMP120, then push the Speaker B button in, notice that the A button pops out. We do that to discourage playing both Speaker A and Speaker B at the same time. The AMP does 8 ohms or higher (16 ohms) but 2 pair in parallel produces a 4 ohm load which is not recommend for this AMP. You will also notice a difference after listening to the AMP200; no listening fatigue. TL/4779
Carson • 12/17/2019, 2:17:43 PM Q can you pair multiple speakers. as in if I had 2 different pairs could I connect all 4 on the same device
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Carson: That is a loaded question which I would love to answer but I need a little bit more information about your layout. Is this just going to be two pairs of rock speakers? What is your source; Amplifier? Receiver etc.? Brand name and model numbers if you have them already. Contact me at tim@osdaudio> The simple answer is yes but there is a question regarding Impedance and matching the speakers to your Amplifier/Receiver. Let know more... TL/5014
Mike • 12/17/2019, 2:17:43 PM Q Can I connect these to a sonos connect amp with two existing speakers?
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Mike: That is a question for SONOS. My understanding is the SONOS Connect Amplifier is only meant to drive a single pair of 8-ohm speakers at a time in parallel (4-ohm load). We recommend and sell many of our AMP200 along with the SONOS Connect. The AMP200 is stable down to 2 -ohm which allows you to connect three pairs of 8-ohm speakers in parallel. Of course, it is a true High Current Power Amplifier that weighs 24 pounds and features automatic source switching and has speaker A and B connection. TL/5061