All weather outdoor loudspeaker
8 1/2" W x 12 7/8" H x 9 3/16" D
21.59cm W x 32.70cm H x 23.34cm D
The Speaker for All Seasons
The flagship of the line, the Atrium®8SDI has a unique, patented* single/dual input switch that combined with its ingenious dual tweeter array enables you to use the Atrium8SDI as either a single high performance stereo loudspeaker, or the left-or-right speaker in a high performance stereo pair. And you can use it practically anywhere, because the Atrium8SDI also has special military spec waterproofing features, including our patented water-resistant PowerPort® bass venting.
6 1/2-inch (16.51cm) long-throw aerated polypropylene cone driver with butyl rubber surround pumps out surprising bass response from a compact design.
Two 1-inch (24.5mm) anodized aluminum dome tweeters with rubber surrounds and neodymium magnets offer better power handling, smoother response and greater accuracy. Dual tweeter array with stereo tweeter aiming creates excellent imaging, whether used as a single stereo speaker, or as half of a stereo pair.
Patented water-resistant PowerPort bass venting efficiently adds 3dB of big, realistic, musical bass output. And because it’s Polk all-weather certified water-resistant, it can go practically anywhere with no worries about moisture impeding its performance.
Dual voice coil, Dynamic Balance® aerated polypropylene cone with rubber surround for greater power handling and better efficiency.
Single/dual input switch*. Combined with its ingenious dual tweeter array, this switch enables the Atrium8SDI to be used either as a single high-performance stereo loudspeaker, or the left-or-right speaker in a high performance stereo pair.
Broad coverage made possible by a more steeply-angled baffle design that maximizes critical mid- and high-frequency dispersion over a large area, without sacrificing the detail.
Durable, mineral-filled polypropylene cabinet design, with molded-in bracing, sounds like a real speaker (not "an outdoor speaker"), and survives years of seasonal changes, for truly great sound, no matter what the weather.
Patented Dynamic Balance and Klippel optimization technologies ensure the perfect material performance, eliminating driver and tweeter "artifacts" for more realistic sound reproduction at high and low volume levels.
Polk all-weather certified, Atrium Series speakers exceed baseline industrial and military specifications for environmental endurance (ASTM D5894-UV Salt Fog, Mil Standard 810 Immersion, Mil-Std 883 Method 1009.8 for salt and corrosion.) Certification means Atrium speakers can effortlessly withstand the worst Mother Nature can dish out, whether its extreme temps or heavy rains. Aluminum grilles and bracket, with stainless steel and brass hardware: No rust. Ever.
Gold plated 5-way binding posts for the most secure, efficient hookups.
Available in durable, weatherproof black or white paintable finishes.
All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.
|Type||Anodized aluminum dome tweeter with neodymium motor structure|
|Mid / Woofer|
|Diameter||6 1/2" (16.51cm)|
|Type||Dual voice coil driver with Dynamic Balance aerated polypropylene cone with rubber surround|
|Total Frequency Response||45Hz-27kHz|
|Nominal Impedance||8 ohms|
|Recommended Amplifier Power||10-125 x 2 watts per channel|
|Inputs||Gold-plated 5-way binding posts|
|Height||12 7/8" (32.70cm)|
|Width||8 1/2" (21.59cm)|
|Depth||9 3/16" (23.34cm)|
|Mounting Options||180-degree Speed-Lock mounting system|
|Product Weight (each)||9.70 pounds|
|Unit of Measure||each|
|Total Shipping Weight||13.50 pounds|
|Speaker Warranty||5 years parts and labor (original purchaser)|
Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.
3 reviews with an average of 5Write your own review
by Robert Gillis, April 28, 20128 out of 9 people found this review helpful.
This speaker has a nice,stylis look,and mounts into its bracket with great ease.
That I have to put them away for the winter!
Well, Polk has done it again! I just replace two pair of Cambridge Soundwork's Outdoor 62 speakers with the new Atrium 8 sdi.The great staff at Safe and Sound in Chicopee Ma. let me listen and compare my next speaker choice in thier showroom.I wanted to hear the Klipsch against the Polk.Upon hearing them side by side,the Polk were the clear winners! The Klipsch sounded a little tinny,while the Polk had a great bass and a full,rich sound.Thanks to the staff at Safe and Sound I was able to choose and spend wisely!
by Jack Koenig, April 29, 20125 out of 5 people found this review helpful.
The full sound of these tiny units amazes you. The midrange is what really impressed me.
While you don't expect great bass, you would wish for more. However, in this size package it does pull it's weight.
Wow, I am really impressed! I had Polk's M series hanging outside for 15 years and they finally gave up. They lived through tropical storms, blizzards, and faced west into direct sun for all those years. Obviously the replacements were going to be Polk's. The minute I powered them up I was happy I did.
by Mark from Encino, May 16, 20132 out of 2 people found this review helpful.
Great clean sound and excellent apparent frequency response from Rock, Jazz, Classical, Vocals, and Movie Soundtracks. Also the increased efficency in output over our previous speakers meant that the new volume setting used now is from 1/4 to 1/2 of the old one for the same apparent volume. Miraculous...
Wiring Posts were a little difficult for me to reach with my fingers originally, but I was able to make a clean strong connection once I figured out how to get my hands in the right place.
Our old 20 year outdoor speakers finally died. So after about 6 hours of Internet browsing off to the store I went. After listening in the store, it seemed this was the ONLY outdoor speaker that even approached my need for clean sound thoughout a eclectic range of music. To be honest the on the "metal Shelf" in store demo the speaker's performance, although the best out of the outdoor batch in the store, seemed to offer only at best, a compromise in performance to gain the weatherabilty. The in store demo was decieving...Upon installation over our deck area, my wife and I were stunned, both our jaws dropped...Instead of a the expected mush of voices and sound elements we could hear individual instruments and beautiful voice qualities and inflections we only heard before in our indoor system.. The apparent frequency response was incredible as well, way beyond our expectations. This was accomplished BY ONLY CHANGING TO theses new Atrium 8 SDI speakers. We played a Mahler Symphony, some 90's rock, a movie soundtrack from Beasts of the Southern Wild and a wonderful jazz vocal group called Paris Combo. Every piece was beautifully depicted and actually dimensioned with only our two speaker setup. My wife's commented out of her excitement and delight, " Oh honey this sounds so wonderul, We have to throw a party !!!! Thank you Polk Audio for lots of wonderful soundful parties to come!!!!
Atrium8 SDI Media
Atrium8 SDI Literature
Want to know more? Want to dig just a little deeper to learn about this product? Here's a list of source material that will give more detail, other perspectives, and answer questions you may have.
Frequently Asked Questions
- Optimizing the Sound of Your Room
- Surround Processor/Receiver Set-Up
- How Do I Prevent Damaging My Speakers Again?