Material | Aluminum |
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Model name | Atrium8 SDI |
Speaker type | Outdoor |
Special feature | Tweeters |
Recommended uses for product | Outdoor |
Compatible devices | Laptop, Smartphone |
Subwoofer diameter | 6.5 Inches |
Surround sound channel configuration | 2.0 |
Colour | Black |
Included components | Mounting bracket (installed), Online Product Registration card, Black all-weather speaker, Owner's Manual, Polk Audio brochure |
Product Dimensions | 10D x 10W x 10H millimeters |
Item weight | 9.7 Pounds |
Is waterproof | TRUE |
Maximum range | 10 Meters |
Manufacturer | Polk Audio |
Place of Business | EXETER, PA, 18643 US |
Model | AM8085-A |
Model year | 2014 |
Part Number | ATRIUM8B |
Special features | Tweeters |
Number of Items | 1 |
Aspect Ratio | Unknown |
Speakers Nominal Output Power | 125 Watts |
Noise level | 88 dB |
Speaker Amplification Type | Passive |
Speaker connectivity | Wired |
Output Wattage | 125 Watts |
Wattage | 2 |
Power source type | Corded Electric |
Batteries included | No |
Batteries Required | No |
Material Type | Aluminum |
Does it contain liquid? | No |
Includes rechargable battery | No |
Includes Remote | No |
Manufacturer | Polk Audio |
Language | English, English, English, English |
Item model number | AM8085-A |
ASIN | B00378KMIC |
Buy new:
$279.00$279.00
Ships from: 鶹.ca Sold by: 鶹.ca
Save with Used - Very Good
$259.47$259.47
Ships from: 鶹 Sold by: Warehouse Deals
Add to your order

- No Additional Cost: You pay $0 for repairs -- parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use covered for portable products and power surges covered from day one. Malfunctions covered after the manufacturer's warranty.
- Easy Claims Process: File a claim 7/365 via phone. Most claims approved within minutes. If we can't repair it, we'll send you an 鶹 e-gift card for the purchase price of your covered product or replace it.
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Polk Audio Atrium 8 SDI Flagship Outdoor Speaker (Black) - Use as Single Unit or Stereo Pair, Powerful Bass & Broad Sound Coverage, Withstands Extreme Weather & Temperature
Purchase options and add-ons
Brand | Polk Audio |
Speaker maximum output power | 125 Watts |
Connectivity technology | Optical |
Audio output mode | Stereo |
Mounting type | Tabletop |
About this item
- LARGE 6.5” DYNAMIC BALANCE WOOFER - 6.5" dynamic balance polypropylene woofer, two 1" anodized aluminum dome tweeters and patented single/dual input switch - use as single high-performance speaker or as L/R pair
- DEEP EFFORTLESS BASS - Polk's patented Power Port design ensures you get that enhanced bass sound you love - by the pool, on the patio, in the sunroom, halls or office areas
- EXCEPTIONAL SOUND - High powered (125Wx2) & low frequency (45Hz) helps block all background noise so you can experience space-filling sound in any large outdoor area
- ONE-CLICK SPEED-LOCK MOUNTING - Easy, anti-slip one-handed installation - mount speakers vertically or horizontally to deliver the best sound; Simply mount the swiveling C-bracket, adjust the angle and fasten the speaker with a click
- ALL WEATHER CERTIFICATION - With rugged durability and premium build, these loudspeakers can effortlessly withstand all elements including extreme temperatures and heavy rain year after year
Frequently bought together

Product information
Technical Details
Additional Information
Batteries | 1 Lithium Ion batteries required. |
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Date First Available | March 31 2011 |
Customer Reviews |
4.4 out of 5 stars |
鶹 Rank |
|
Is discontinued by manufacturer | No |
Feedback
What do customers buy after viewing this item?
Product description
Atrium 8 SDI features a single/dual input switch and dual tweeter array that lets you work the speaker as a single high-performance stereo loudspeaker, or L/R speaker in a high-performance stereo pair. It’s time to get that indoor sound you love - all from an outdoor loudspeaker you can put anywhere around your home. All-Weather Certified and Water-Resistant—built to withstand the worst elements—salt-fog, UV, extreme temps or heavy rains, you name it. Equipped with a Dynamic Balance driver and two tweeters the speaker provides a more realistic sound reproduction at high and low volume levels, and delivers clean midrange and deep, accurate bass. Durable speaker cabinet design with aluminum grilles and bracket, stainless steel and brass hardware survives years of seasonal changes without compromising on premium outdoor sound. Impedance: 8 Ohms. Sensitivity: 91 dB
Top Brand: Polk Audio
Compare with similar items
This Item ![]() Polk Audio Atrium 8 SDI Flagship Outdoor Speaker (Black) - Use as Single Unit or Stereo Pair, Powerful Bass & Broad Sound Coverage, Withstands Extreme Weather & Temperature | Recommendations | |||||
Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | |
Price | -20%$279.00$279.00 List: $349.00 | $189.99$189.99 | $325.86$325.86 | $839.99$839.99 | -28%$129.00$129.00 Was: $179.00 | $219.95$219.95 |
Delivery | Get it by Saturday, Jul 26 | Get it by Saturday, Jul 26 | Get it by Saturday, Jul 26 | Get it Jul 29 - Aug 6 | Get it by Saturday, Jul 26 | Get it by Saturday, Jul 26 |
Customer ratings | ||||||
Sold by | 鶹.ca | Inwa-ca | 鶹.ca | ShopTronics Canada | 鶹.ca | White Room Electronics |
speaker size | 6.5 inches | 1.3 inches | 5 inches | 8 inches | 8 inches | 6.5 inches |
power source | Corded Electric | Corded Electric | Corded Electric | Passive | Corded Electric | Corded Electric |
connectivity tech | Optical | Bluetooth | wired | Wired | Auxiliary | wired |
speaker type | Outdoor | Outdoor | Outdoor | Floorstanding | Woofer | Outdoor |
mounting type | Tabletop | Wall Mount | Inside Mount,Outside Mount | Floor Standing | Tabletop | Wall Mount |
weight | 9.7 pounds | 7 pounds | 5 pounds | 47.7 pounds | 4.4 pounds | — |
control method | touch | remote | touch | remote | application | application |
model name | Atrium8 SDI | MZ-621 | Patio 200 White | XL8F | NS-AW294BL | 46KB6B-FBA |
frequency response | — | 20 hertz | 60 hertz | — | 80 hertz | 55 hertz |
surround channels | 2 | 2 | 2 | 2 | 2 | 2 |
woofer diameter | 6.5 inches | 4 inches | 5 inches | 8 inches | 6.5 inches | 6.5 inches |
From the manufacturer


Customer reviews
Reviews with images

Cost vs value. You won’t be disappointed
Top reviews from Canada
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- Reviewed in Canada on November 27, 2023Verified PurchaseIf you are looking for a great sounding outdoor speaker look no further. I would recommend them to anyone looking for an indoor or outdoor wall or corner speaker. This Atrium 8 SDI has a patented single/dual input switch that lets the speaker be configured as either a single, high performance loudspeaker, or as a right and left when used as a pair. They sound great hooked up both ways. The only flaw I found was when screwing the wires in the back, it’s a little tight and you may need some needle nose pliers to get them nice and tight, a small inconvenience. You get more base when mounted in a corner but they sound great on the wall as well. $250 on sale Black Fridays and Cyber Mondays in 2023
- Reviewed in Canada on December 31, 2021Verified PurchaseFinally hooked up these speakers to an older receiver (until I upgrade in the New Year) and was absolutely amazed at the sound especially with the bass. I was considering purchasing the Polk Audio outdoor bass but will wait till these are finally set up permanently on my sundeck where I have set up a movie theatre environment. I played on of my favourite Blu ray concerts in a temporary area of my house (basement) and enjoyed them thoroughly. I am a Polk Audio fan as I also have SDA II set up in my home and needless to say they do make a great product.
- Reviewed in Canada on May 7, 2021Verified PurchaseGreat sound clear highs and good bass power handling well over 150 watts
- Reviewed in Canada on October 4, 2016Verified PurchaseExcellent sound and quick delivery.
- Reviewed in Canada on April 26, 2017Verified PurchaseGood product, but bass is not great. Bass is better than my smaller patio speakers, but could still definitely be better for the size of these things.
- Reviewed in Canada on June 5, 2019Fantastic sound! Quality of sound is impressive. Love that one speaker plays both channels. So glad I brought back the 4’s and got the 8. More than enough volume and I have a large yard.
5.0 out of 5 starsFantastic sound! Quality of sound is impressive. Love that one speaker plays both channels. So glad I brought back the 4’s and got the 8. More than enough volume and I have a large yard.Cost vs value. You won’t be disappointed
Reviewed in Canada on June 5, 2019
Images in this review
- Reviewed in Canada on August 20, 2021Verified PurchaseThe speaker was overtighned around the driver which separated it from the front housing... contacted polk customer support... everything fine with warranty just no stock on the atrium 8 in black or white ... so will have to wait over 2 months for warranty replacement. I have the atrium 6 and 4 and they are great.. will have to wait and see once I get it
The speaker was overtighned around the driver which separated it from the front housing... contacted polk customer support... everything fine with warranty just no stock on the atrium 8 in black or white ... so will have to wait over 2 months for warranty replacement. I have the atrium 6 and 4 and they are great.. will have to wait and see once I get it
Images in this review
- Reviewed in Canada on August 29, 2016Verified PurchaseGreat
Top reviews from other countries
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ZapouneReviewed in France on July 8, 2025
1.0 out of 5 stars Erreur de description. Ce n’est pas un lot.
Verified PurchaseDéçue … ce n’est pas un lot de deux comme indiqué dans la description mais une seule enceinte j’ai choisi la blanche j’ai reçu une noire … je l’ai renvoyé sans l’utiliser. Trop d’erreur dans le descriptif pour ce prix là.
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martinReviewed in Germany on April 26, 2012
5.0 out of 5 stars Überraschender Sound
Verified PurchaseTolle Lautsprecher für aussen. Hätte mir schon fast die Bose 251 ( der klang hat mich nicht wirklich überzeugt) gekauft, gottseidank hab ich noch vorher polk audio getestet. Super klang und schöneres design um weniger geld!!!
- MooreUsesReviewed in the United States on April 5, 2025
5.0 out of 5 stars Great outdoor speaker that lasts!
Verified PurchasePurchased these to project sound in a commercial environment for ambient parking lot music! They are exceptionally clear, have a great look and were easy to mount. For outdoor use Polk Audio is a clear choice! You can push them and expose freely to the elements with no issue. These are our third set to out to use and never an issue, years of use! They are incredibly durable! You are making the right choice with this speaker!
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mikeReviewed in Germany on September 19, 2024
2.0 out of 5 stars Klingt schlecht
Verified PurchaseDer Klang hat mich leider gar nicht überzeugt. Klingt teilweise wie eine billige Plastik-Box.
- GazerdudeReviewed in the United States on July 7, 2025
5.0 out of 5 stars 2 years+ use and still awesome
Verified PurchaseI've had them 2 years now. Outside, fully exposed mounted on posts, no roof. They still sound as awesome as they did the first day. The speaker wires I used needed replaced, as they were not rated for outdoors, after a year and a half. But these speakers are awesome. Had the first set for a business and then got a set for myself.
Gazerdude2 years+ use and still awesome
Reviewed in the United States on July 7, 2025
Images in this review