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Niles RS8SI Pro

Stereo-input outdoor rock speaker (Shale Brown)

13 Reviews | 1 question - 5 answers

Item # 190RS8SPSB

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Our take on the Niles RS8SI Pro

The Niles RS8SI Pro stereo-input speaker delivers spacious sound while disappearing into the surrounding landscape. Your outdoor music will sound exceptional thanks to Niles' careful design and attention to detail.

This speaker rocks, but it won't roll

The Niles RS8SI Pro stereo-input speaker delivers spacious sound while disappearing into the surrounding landscape. Your outdoor music will sound exceptional thanks to Niles' careful design and attention to detail.

Thoughtfully designed for clear sound

The RS8SI Pro features dual 1" dome tweeters for crisp highs and an 8" polypropylene woofer for rich midrange and bass. Niles mounts the drivers closer behind the grille than most rock speaker manufacturers for more accurate sound with better imaging. And the tweeters are angled upwards 20 degrees, so the high frequencies are aimed at the listener and not the ground. All of the RS-Pro series speakers have the option to be wired as single channel loudspeakers. 

Stands up to the elements

The RS8SI Pro is completely weatherproof — you can leave it outside fully exposed to whatever nature brings, worry-free. It has passed some of the most stringent environmental tests ever devised for outdoor speakers, including extensive salt fog and UV exposure testing. Plus, it can handle extreme temperatures, from -50 to 185 degrees. You'll enjoy "rock"-solid sound for years to come.

Got wire?

Most speakers don't include any. Learn more about in-wall wiring at the Crutchfield Learning Center.
Shop our selection of in-wall speaker wire.

the Niles RS8SI rock speakers deliver great outdoor sound. Purchased here at an awesome mark down price.

Barry, Millbury, Ma

What's in the Box:

  • RS8SIPRO Rock Speaker in Shale Brown with two attached 28" speaker wires
  • 9.75" Metal security stake
  • 40" Nylon security cable
  • 4 Red wire nuts
  • Installation Guide
  • Limited Warranty card

Product Highlights:

  • sold individually
  • for use in stereo or mono mode
  • acoustic suspension design
  • frequency response 50-21,000 Hz (±3 dB)
  • handles up to 200 watts
  • sensitivity 88 dB
  • 8-ohm impedance
  • dual 1" Teteron dome tweeters
  • 8" TCC (talc, carbon and ceramic) injected polypropylene dual voice coil woofer
  • weatherproof enclosure
  • rust-proof aluminum grilles
  • 3-foot pre-attached burial-rated speaker cable
  • security bracket included to protect against theft
  • 19"W x 12-3/4"H x 15-5/8"D
  • weight: 27.9 lbs.
  • warranty: limited lifetime
  • Our 60-day money-back guarantee

Niles RS8SI Pro Reviews

Average Customer Review(s):

(13 Reviews)
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Features and Specs

Enclosure Acoustic Suspension
Tweeter Type Dome
Midrange Size ---
Woofer Size 8
Woofer Composition TCC Polypropylene
Woofer Surround Butyl rubber
Power Range (watts) 10-200
Sensitivity 88 dB
Impedance (ohms) 8
Frequency Response 50-21k Hz
Connector Type Bare wire
Height (inches) 12-3/4
Width (inches) 19
Depth (inches) 15-5/8
Weight (pounds) 27.9
Mounting Bracket Included No
Parts Warranty Limited Lifetime
Labor Warranty Limited Lifetime

Product Research


Overview: The Niles Audio RS8SIPRO Rock Loudspeaker is designed for outdoor use. The GeoRealistic enclosure has the texture and color of natural rock, so it blends in just about anywhere in your yard or landscaping. It is completely weatherproof, and comes with a limited lifetime warranty.

Note: The Niles Audio RS8SIPRO is packaged as a single speaker.

Stereo Inputs: The RS8SIPRO has dual inputs that allow you to connect both left and right channel signals to a single speaker. The dual-voice-coil woofer and dual tweeters give you stereo sound from a single speaker enclosure. As a single stereo speaker, the speaker has an 8 ohm impedance. It can also be configured as a single channel speaker (in a two speaker stereo mode), in which case, the speaker's impedance would be 4 ohms.

Drivers: The RS8SIPRO features an 8" injection-molded TCC (talc, carbon, and ceramic-filled) polypropylene cone woofer with dual voice coils and two 1" Tri-laminate Teteron dome tweeters, bridge-mounted at a 20° angle for optimum dispersion and stereo separation. The ConeForward driver placement and high quality crossover design give you superior quality sound in an outdoor setting. The drivers are covered with shaped MicroPerf aluminum grilles to maintain the natural look.

Weatherproof Enclosure: Niles Audio rock speakers feature proprietary 4-layer fiberglass construction, making it completely weatherproof and acoustically inert. It can withstand extreme environments, including UV exposure and water resistance. It surpasses the military's strict specifications for preventing corrosion (MIL-STD-883D). The enclosure can also withstand temperature extremes of -50°F to 185°F.

Wiring: The RS8SIPRO is equipped with two connected 28" lengths of burial-rated speaker wire with tinned ends. Four waterproof wire nuts are included for splicing on your own speaker wire. If you plan to bury the speaker cable, you should either use cable rated for direct burial, or run the cable through PVC pipe. The recommended gauge of the speaker wire is determined by the maximum length needed:

Wire Gauge Maximum Distance
16 60 feet
14 100 feet
12 160 feet

Speaker Security: The RS8SIPRO comes with a metal security stake and a Nylon security cable. The security cable should be looped through the eyelet on the bottom of the speaker enclosure and secured to the stake, which is then driven into the ground. If desired, enhanced security methods can be used, such as anchoring the speaker to concrete.

Our Product Research Team

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Q & A

Customer Q&A

1 question already asked

You do not need a lot of power. They are relatively efficient at 88dB. I would recommend at least 30W with 50W probably be the preferred. I am running mine with about 95W and that is plenty. Do not run anywhere near full volume. [ Ryan  May 11, 2015 ]
Hello Scott. I am pushing 3 rs8si with a 120W amplifier. I have the three speakers wired individually then pigtailed to tie into the respective amp terminals. These are great speakers in all regards. Great treble and tremendous bass for outdoor listening. Friends and family are quite impressed. Get to know and like your neighbors, cause they will be hearing your tunes. Enjoy! Alan [ ALAN  May 07, 2015 ]
Not sure but Im running mine on 90 watts each and I still think it needs more [ Steven  May 06, 2015 ]
I returned them. They were too big for our small back yard. Went with the RS6Si speakers and the Sonos amp. Sounds awesome and "wireless" outdoor solution! [ ian  May 06, 2015 ]
Scott, I'm using a 200watt Denon amp to drive mine and they sound great. More importantly is the amplifier needs to be able to handle a 4 ohm load with out a problem. Look for amps that can drive high current loads. [ TIMOTHY VAN  May 06, 2015 ]