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Polk Audio Atrium 4 Outdoor Speakers with Powerful Bass (Pair, Black), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System

4.6 4.6 out of 5 stars 5,726 ratings

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Black
Atrium 4

Purchase options and add-ons

Brand Polk Audio
Model Name Atrium 4
Speaker Type Outdoor
Connectivity Technology Ethernet
Special Feature Bass Boost, Waterproof

About this item

  • CREATED TO LIVE AND PLAY OUTDOORS – To deliver exceptionally great sound, the Polk Audio Atrium 4 Speakers can be installed in any open space - by a pool, in the patio or a sunroom, or tucked away somewhere in the backyard
  • Created to live and play outdoors, your Atrium Speakers can be installed in any open space—by a pool, in the patio or a sunroom, or tucked away somewhere in the backyard. They will deliver EXCEPTIONALLY GREAT SOUND no matter where you set them up!
  • FULL-RANGE SPEAKERS - Recognized as one of the best-looking outdoor speakers, Polk Atrium 4 comes with a steeply angled baffle design filling open spaces with complete audio coverage! The outer profile easily blends into the corners of the outdoor walls
  • EASY INSTALLATION - One-click speed-lock mounting bracket offers anti-slip one-handed installation allowing you to mount these speakers vertically or horizontally, to deliver the optimal sound in different setups. Simply mount the swiveling C-bracket
  • THE SPEAKER FOR ALL SEASONS – Its rugged durability, high environmental endurance, and superior quality have helped Polk Outdoor Speakers earn the all-weather Certification. Effortlessly withstands extreme temperatures and heavy rain year after year
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Polk Audio Atrium 4 Outdoor Speakers with Powerful Bass (Pair, Black), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System
Polk Audio Atrium 4 Outdoor Speakers with Powerful Bass (Pair, Black), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System
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Price-25% $148.69
List:$199.00
-7% $114.66
Typical:$122.66
$199.99-5% $199.99
Typical:$209.99
-14% $114.99
Typical:$132.99
-5% $379.99
Typical:$399.99
Delivery
Get it as soon as Wednesday, Apr 3
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it Apr 1 - 2
Customer Ratings
Weatherproof
4.6
4.6
5.0
5.0
4.2
Sound quality
4.4
4.2
4.3
4.6
4.4
Bass quality
3.9
4.1
4.6
Value for money
4.0
4.6
4.3
Sold By
Amazon.com
Herdio Direct
Herdio Direct
Studiofinix Direct
Herdio Direct
Electronics Expo (Authorized Dealer)
speaker size
4.5 inches
6.5 inches
6.5 inches
6.5 inches
6.5 inches
6.5 inches
power source
Corded Electric
Corded Electric
Corded Electric
Corded Electric
Corded Electric
Wired
connectivity tech
Ethernet
Wired
Wired
USB
Auxiliary, Bluetooth
Speaker Wire
speaker type
Outdoor
Outdoor,Tweeter,Woofer,Bookself,Surround Sound
Woofer
Outdoor
Outdoor,Tweeter,Woofer,Bookself,Surround Sound
Outdoor
mounting type
Wall Mount
Wall Mount
Wall Mount
Wall Mount
Wall Mount,Outside Mount,Deck
Wall Mount, Ceiling Mount
weight
3.6 pounds
5.54 kilograms
12.07 kilograms
12.64 kilograms
12.91 pounds
26 pounds
model name
Atrium 4
SZJW-601BTB-US
Polk Audio Atrium 8 Pair

From the manufacturer

Polk Atrium 4, Atrium 5 all-weather

Atrium 4

Atrium 4

Atrium 4

4.5" Drivers and .75" Tweeters

4 1/2" (11.43cm) Dynamic Balance long-throw mineral-filled polypropylene cone driver with butyl rubber surround pumps out surprising bass response from a compact design.

3/4" (19mm) Dynamic Balance anodized aluminum dome tweeter with rubber surround and neodymium magnet for better power handling and smoother response.

10-80W Per Channel

The perfect material performance, eliminating driver and tweeter 'artifacts' for more realistic sound reproduction at high and low volume levels.

All-Weather Performance

Polk Audio All-Weather Performance, 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.)Atrium Speakers can effortlessly withstand the worst mother nature can dish out, whether its extreme temps or heavy rains.

atrium 4

Atrium 4

Atrium 4

Atrium 4

180 Degrees Speed-Lock Mounting System

Speed-Lock Mounting, the easiest, fastest and safest of all mounting systems.

Simply mount the bracket and click the speaker into place. Aim it and tighten it down.

Broad Coverage Baffle Design Fills Large Outdoor Spaces

Broad coverage baffle design fills a large open outdoor space with big, full-range sound.

The Atrium 4 has a more steeply-angled baffle design that maximizes critical mid- and high-frequency dispersion over a large area, without sacrificing detail.

Aluminum with Stainless Steel and Brass Hardware

Gold-plated 5-way binding posts for the most secure, dependable hookups.

Aluminum grilles and bracket, with stainless steel and brass hardware: No rust. Ever.

Atrium 4 Atrium 5 Atrium 6 Atrium 8
Atrium 4 Atrium 5 Atrium 6 Atrium 8 SDI
Customer Reviews
4.6 out of 5 stars
5,726
4.7 out of 5 stars
1,384
4.7 out of 5 stars
2,234
4.7 out of 5 stars
2,234
Driver Complement 4 1/2” (114mm) mineral filled Dynamic Balance polymer cone, rubber surround, 3/4” (19mm) anodized aluminum dome tweeter w/ rubber surround and neodymium motor structure 5” (127mm) mineral filled Dynamic Balance polymer cone, rubber surround, 3/4” (19mm) anodized aluminum dome tweeter w/ rubber surround and neodymium motor structure 5 1/4” (133mm) Dynamic Balance aerated polypropylene cone, rubber surround, 1” (25mm) anodized aluminum dome tweeter w/ rubber surround and neodymium motor structure 6 1/2” (165mm) Dual Voice Coil Dynamic Balance aerated polypropylene cone, rubber surround, Two 1” (25mm) anodized aluminum dome tweeter w/ rubber surround and neodymium motor structure
Frequency Response 75Hz-25kHz 60Hz-25kHz 50Hz-27kHz 45Hz-27kHz
Recommended Power 10-80W continuous 10-100W continuous 10-100W continuous 10-125W x 2 continuous
Impedance Compatible w/ 8 Ohm outputs Compatible w/ 8 Ohm outputs Compatible w/ 8 Ohm outputs Compatible w/ 8 Ohm outputs
Efficiency (dB 1w/1m) 89dB 90dB 90dB 91dB
Available Finishes Black & White Black & White Black & White Black & White
Environmental Standards ASTM D5894-UV Salt Fog, Mil Standard 810 Immersion, Mil-Std 883 Method 1009.8 for salt and corrosion & Polk Audio Certification ASTM D5894-UV Salt Fog, Mil Standard 810 Immersion, Mil-Std 883 Method 1009.8 for salt and corrosion & Polk Audio Certification ASTM D5894-UV Salt Fog, Mil Standard 810 Immersion, Mil-Std 883 Method 1009.8 for salt and corrosion & Polk Audio Certification ASTM D5894-UV Salt Fog, Mil Standard 810 Immersion, Mil-Std 883 Method 1009.8 for salt and corrosion & Polk Audio Certification
Mounting Options 180º SpeedLock mounting 180º SpeedLock mounting 180º SpeedLock mounting 180º SpeedLock mounting
Dimensions (w/ bracket & knobs) 8 5/8” H x 5 11/16” W x 6 11/16” D (21.9cm H x 14.4cm W x 17cm D) 10 5/16” H x 6 3/4” W x 7 3/4” D (26.2cm H x 17.1cm W x 19.7cm D) 11 11/16” H x 7 11/16” W x 8 3/4” D (29.7cm H x 19.5cm W x 22.2cm D) 12 7/8” H x 8 1/2” W x 9 3/16” D (32.7cm H x 21.6cm W x 23.3cm D)
Product Weight 3.6lbs / 1.63kg (each) 4.6lbs / 2.09kg (each) 5.4lbs / 2.45kg (each) 9.7lbs / 4.4kg (each)

What's in the box

  • 2 Black all-weather speakers, 2 Mounting brackets (installed), Owner's Manual, Online Product Registration card, Polk Audio brochure
  • Product guides and documents

    Looking for specific info?

    Product information

    Warranty & Support

    Product Warranty: For warranty information about this product, please click here [PDF ]

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    Polk Audio Atrium 4 Outdoor Speakers with Powerful Bass (Pair, Black), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System


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    Product Description

    The compact Atrium 4 loudspeaker produces high fidelity sound quality anywhere you want great sound. Its small size makes it ideal for tight, out-of-way installations. With an aluminum dome tweeter and polypropylene cone driver in each speaker enjoy deep, accurate bass and smoother response. Polk’s patented Dynamic Balance and Klippel Optimization technologies ensure perfect material performance, eliminating driver and tweeter "artifacts" for more realistic sound reproduction at high and low volume levels. The weatherproof cabinet features a rustproof aluminum grille, rustproof aluminum bracket, and stainless steel/brass hardware that can endure seasonal change and provide great indoor speaker-quality sound for years of outdoor listening enjoyment. Quick and easy to install with Polk’s Speed Lock Mounting system.

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    5,726 global ratings

    Customers say

    Customers like the sound quality, ease of installation, value, quality and performance of the speakers. For example, they mention that they have great bass for the size, they work great when cooking out, pool parties, and laid back evenings and that they're well made. They also like the appearance, weatherproofness, and clarity.

    AI-generated from the text of customer reviews

    1,244 customers mention1,084 positive160 negative

    Customers like the sound quality of the speakers. They say it's good, clear, and has great bass for the size. They also appreciate the defined sound stage and good volume levels. Customers are also pleased with the sound and install of the speaker system.

    "Product sounds really good. I have a couple Bose speakers in the house, as comparison these speakers are not as bright in sound...." Read more

    "...The sound is good sure there are better-sounding ones on the market, but not at this price point...." Read more

    "Love the sound. Easy to install, great choice." Read more

    "...this way; if you're looking for an inexpensive way to get good quality sound outdoors with something that is ridiculously easy to install then the..." Read more

    376 customers mention376 positive0 negative

    Customers find the installation of the speakers to be easy. They mention that the speed lock mounting bracket makes installation a snap. Some mention that they are easy to mount outside in a screened in patio area. Overall, most are satisfied with the ease of installation and the quality of the product.

    "...Very easy to do (the hard part is running the wires, but that has nothing to do with the speakers themselves)...." Read more

    "Love the sound. Easy to install, great choice." Read more

    "...to get good quality sound outdoors with something that is ridiculously easy to install then the Atrium 4 deserves strong consideration...." Read more

    "...These speakers are easy to install and can be positioned vertically or horizontally...." Read more

    343 customers mention338 positive5 negative

    Customers are satisfied with the value of the speakers. They mention that it is a great budget outdoor speakers with incredible sound for the price.

    "...You are getting something great for your money here." Read more

    "...Incredible sound for the price. Not very bass-y, expected when outdoors, but great sound quality overall; very happy...." Read more

    "At their price point, these speakers represent the absolute best value you will find, period...." Read more

    "...At $50 per speaker this is a good value. Very sturdy and should be very durable outdoors and therefore certainly indoors." Read more

    329 customers mention257 positive72 negative

    Customers like the quality of the speakers. For example, they say it's well constructed, holds up well, and is a solid set of speakers. Customers are also impresseded with the sturdy mounting brackets that came included. Overall, customers are happy with the quality and sound of the product.

    "...Overall I do rank these as a 5 for value. They are above the quality you might expect for the price point and get the job done...." Read more

    "...rain, hail, snow, etc... No fading, no weathering, they are holding up well...." Read more

    "...Generally speaking they are a solid set of speakers. They give a pretty balanced sound all around but lack a little fullness in the lower mid-range...." Read more

    "...Great build quality as well and attactive. I am running them through a Fosi bluetooth amplifier that I highly recommended as well." Read more

    226 customers mention215 positive11 negative

    Customers are satisfied with the performance of the speakers. They mention that it does a good job, works great in every way, and is fantastic value for money. They also say that the speakers are easy to install and work great when cooking out, pool parties, and laid back evenings. Customers also say the speakers have no issues so far and are awesome. They say the speaker is great for smaller areas as the sound fades when used outside.

    "...They are a nice set of speakers that should add enjoyment to your outdoor space for years to come." Read more

    "Love the sound. Easy to install, great choice." Read more

    "...And at that, they do a very good job. They look nice. They are smaller and blend in well...." Read more

    "...They work great when cooking out, pool parties, and laid back evenings...." Read more

    143 customers mention140 positive3 negative

    Customers like the appearance of the speakers. They say the size and style of the speaker is very good and not obtrusive. The speakers provide an excellent ambiance for sitting out in the porch with family and friends. They also say the sound is much more vibrant, lively, and fun to listen to. Customers also love the wall mount speaker bracket design, saying it's easy to install and looks new even after a few heavy storms. Overall, customers are satisfied with the appearance and performance of the product.

    "...With that said they offer a nice high end treble sound that is pleasing to the ear...." Read more

    "...And at that, they do a very good job. They look nice. They are smaller and blend in well...." Read more

    "Looks nice, easy install" Read more

    "Sounds good, looks really good. Overall very impressed!" Read more

    72 customers mention56 positive16 negative

    Customers like the weatherproofness of the speakers. They say it withstands the weather with no problem, is protected from rain and direct sunlight, and is perfect for outdoors or anywhere dampness may be a concern. Some mention that the speakers have a clear sound and are not drowned out by the base.

    "...have been outside through rain, hail, snow, etc... No fading, no weathering, they are holding up well...." Read more

    "...The installation deserves 5 stars. The fact that they are virtually weatherproof is also a plus, you can mount them just about anywhere without fear..." Read more

    "...No problems with the weather at all, had to dust them off last fall, (excess dust in neighborhood from road work over the summer)...." Read more

    "...Gave 4 stars due to the fact that they have not been weather tested yet. We get a lot of wind and dust so we will see how they hold up." Read more

    67 customers mention67 positive0 negative

    Customers are satisfied with the clarity of the speakers. They mention that they are clear at low and high volumes, with no perceptible loss of clarity. The sounds are awesome, with very clear highs and mids, and clear tones. The imaging is spot on, with plenty of detail and separation.

    "...They are very clear and loud and 2 of them are plenty for a half acre. They don’t have much low end base but still sound really good playing music." Read more

    "...Speaker imaging is spot on with plenty of detail and separation for a nice, ample and defined sound stage that makes the speakers virtually..." Read more

    "Put them on my patio plenty of sound and very clear even cranked up" Read more

    "...a difference these make in the quality of sound......full sound and very clear...." Read more

    These are excellent...for the money
    5 Stars
    These are excellent...for the money
    There are a lot of reviews poo-pooing the bass response. If the bass was your concern, why would you look at a speaker with a 4" driver? One reviewer compared them to a speaker at 2x the price! How does that make sense? That's like buying a Toyota C-HR and then complaining about acceleration. These are not for critical listening or dance parties. These are for outdoor music at reasonable levels. And at that, they do a very good job. They look nice. They are smaller and blend in well.I'm driving mine with a $20 (Parts Express, $30 on Amazon) Lepai amp and older dot w/audio out. It's a great setup that is part of a whole house system. With Alexa and Spotify, I can play music inside and out.
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    Top reviews from the United States

    Reviewed in the United States on August 1, 2020
    Color: WhiteStyle: Atrium 4Verified Purchase
    Customer image
    5.0 out of 5 stars Decent speakers at a reasonable price.
    Reviewed in the United States on August 1, 2020
    Product sounds really good. I have a couple Bose speakers in the house, as comparison these speakers are not as bright in sound. They carry a more dominant mid-tone to my ear which is subjective to each person. They have the ability to go pretty loud depending on your receiver and have not distorted. There is a reason they have been in production since 2005. If you are thinking about adding some outdoor speakers but aren’t looking to break the bank, these speakers will not disappoint. I could not be happier with them. My 4 star on the sound is really a preference thing, others may think they are straight up 5. From the install perspective, these speakers come with the mounting bracket, but do not include screws. I used a couple exterior grade screws to fasten to the soffit above my desk. Once the bracket is up, the speakers slide in and then you tighten the cap on either side. Very easy to do (the hard part is running the wires, but that has nothing to do with the speakers themselves). Overall I do rank these as a 5 for value. They are above the quality you might expect for the price point and get the job done. They are a nice set of speakers that should add enjoyment to your outdoor space for years to come.
    Images in this review
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    2 people found this helpful
    Report
    Reviewed in the United States on February 13, 2024
    Color: BlackStyle: Atrium 4Verified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on June 7, 2023
    Color: BlackStyle: Atrium 4Verified Purchase
    Customer image
    5.0 out of 5 stars These are excellent...for the money
    Reviewed in the United States on June 7, 2023
    There are a lot of reviews poo-pooing the bass response. If the bass was your concern, why would you look at a speaker with a 4" driver? One reviewer compared them to a speaker at 2x the price! How does that make sense? That's like buying a Toyota C-HR and then complaining about acceleration. These are not for critical listening or dance parties. These are for outdoor music at reasonable levels. And at that, they do a very good job. They look nice. They are smaller and blend in well.

    I'm driving mine with a $20 (Parts Express, $30 on Amazon) Lepai amp and older dot w/audio out. It's a great setup that is part of a whole house system. With Alexa and Spotify, I can play music inside and out.
    Images in this review
    Customer image
    Customer image
    22 people found this helpful
    Report
    Reviewed in the United States on June 8, 2012
    Color: BlackStyle: Atrium 4Verified Purchase
    56 people found this helpful
    Report
    Reviewed in the United States on February 3, 2024
    Color: WhiteStyle: Atrium 4Verified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on November 21, 2023
    Color: BlackStyle: Atrium 4Verified Purchase
    Reviewed in the United States on October 19, 2023
    Color: WhiteStyle: Atrium 4Verified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on July 14, 2023
    Color: WhiteStyle: Atrium 4Verified Purchase
    10 people found this helpful
    Report

    Top reviews from other countries

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    Terry Kostiw
    5.0 out of 5 stars A must outside at low volume!
    Reviewed in Canada on May 29, 2023
    Color: GreyStyle: SUB100Verified Purchase
    Alejandro Tobias
    5.0 out of 5 stars Polk Calidad de sonido
    Reviewed in Mexico on April 20, 2023
    Color: BlackStyle: Atrium 4Verified Purchase
    3 people found this helpful
    Report
    martin
    4.0 out of 5 stars sin accesorios para instalacion
    Reviewed in Mexico on April 30, 2022
    Color: BrownStyle: SAT300Verified Purchase
    Customer image
    martin
    4.0 out of 5 stars sin accesorios para instalacion
    Reviewed in Mexico on April 30, 2022
    el producto es bueno, pero yo compre 2 y uno venia con todos los accesorios para su instalacion y el otro venia incompleto (no traia empaque, ni tornilleria , ni base para montar en techo)
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    Donald Mulders
    5.0 out of 5 stars Great speakers at the right price!
    Reviewed in Canada on January 12, 2022
    Color: WhiteStyle: Atrium 4Verified Purchase
    One person found this helpful
    Report
    Zach
    5.0 out of 5 stars Works well with Sonos ZP100 and Atrium 4s
    Reviewed in the United Kingdom on September 11, 2023
    Color: GreyStyle: SUB100Verified Purchase