---
product_id: 1148869
title: "Atrium 4 Outdoor Speakers with Powerful Bass (Pair, White), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System"
brand: "polk audio"
price: "€ 546.74"
currency: EUR
in_stock: true
reviews_count: 9
category: "Polk Audio"
url: https://www.desertcart.com.cy/products/1148869-atrium-4-outdoor-speakers-with-powerful-bass-pair-white-all
store_origin: CY
region: Cyprus
---

# Speed-Lock one-click mounting 4.5" Dynamic Balance woofer All-weather certified durability Atrium 4 Outdoor Speakers with Powerful Bass (Pair, White), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System

**Brand:** polk audio
**Price:** € 546.74
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your outdoor vibe with Polk’s all-weather sonic mastery!

## Quick Answers

- **What is this?** Atrium 4 Outdoor Speakers with Powerful Bass (Pair, White), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System by polk audio
- **How much does it cost?** € 546.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/1148869-atrium-4-outdoor-speakers-with-powerful-bass-pair-white-all)

## Best For

- polk audio enthusiasts

## Why This Product

- Trusted polk audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Setup:** Speed-Lock mounting system lets you install with one hand—no ladder juggling, just click, aim, and tighten.
- • **Compact Powerhouse:** Small footprint, big impact—4.5" Dynamic Balance woofer and ¾" anodized aluminum tweeter deliver rich, clear sound that fills your outdoor space.
- • **Broad Sound Coverage:** Steeply angled baffle design maximizes mid and high-frequency dispersion for immersive audio across patios, pools, and backyards.
- • **Premium Connectivity:** Gold-plated 5-way binding posts ensure secure, corrosion-resistant connections for flawless wired performance.
- • **Unstoppable Outdoor Sound:** Polk’s military-grade all-weather certification means these speakers thrive through rain, sun, and snow—no compromises.

## Overview

The Polk Audio Atrium 4 Outdoor Speakers combine military-grade weatherproofing with compact, high-fidelity sound technology. Featuring a 4.5" Dynamic Balance woofer and ¾" anodized aluminum tweeter, these speakers deliver rich bass and crystal-clear highs. The innovative Speed-Lock mounting system enables quick, secure installation, while the broad sound dispersion design fills outdoor spaces with immersive audio. Designed for durability and premium performance, the Atrium 4 is the ultimate choice for stylish, reliable outdoor sound.

## Description

Product Description These Polk audio outdoor speakers deliver exceptional sound anywhere. The compact Atrium 4 Outdoor Loudspeaker meets or exceeds military specs for environmental endurance. Its small size fits tight spots by the pool, on the deck, around the kitchen or filling the backyard with great sound. Easy-mount hardware lets you enjoy high-performance audio in every season, and durable, weatherproof black or white paintable finishes. For homeowners interested in outdoor entertaining, these outdoor pool speakers couple a 4 1/2" Dynamic Balance long-throw mineral-filled polypropylene cone with butyl rubber surround pumps out surprising bass, and a 3/4" anodized aluminum dome tweeter with neodymium magnet for smooth response. A steeply angled baffle maximizes mid- and high-frequency dispersion over large areas without sacrificing detail. As wired speakers for stereo or multi-zone setups, Atrium 4 uses the proprietary Speed-Lock system for one-handed installation; simply click, aim, and tighten. Polk All-Weather Certification means Atrium Speakers can effortlessly withstand the worst mother nature can dish out, whether it's extreme temps or heavy rains. Compact yet powerful, Atrium 4 offers award-winning Polk Audio sound, four-season durability and effortless placement—ideal for any music lover’s patio, garage or backyard. From the Manufacturer Exceptional sound anywhere you want it – really, anywhere. The compact Atrium® 4 Outdoor Loudspeaker meets or exceeds military specifications for environment endurance. Its small size makes it ideal for tight, out-of-way installations: by the pool, next to the deck or patio, around the kitchen, tucked away in the family den or filling the backyard with great sound. The easy to mount Atrium 4 will deliver high performance audio fall, winter, spring and summer, bringing years of outdoor enjoyment. Available in durable, weatherproof black or white paintable finishes.Key Features4 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.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.Speed-Lock® Mounting, the easiest, fastest and safest of all mounting systems.Polk Audio 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.) Polk All-Weather Certification means Atrium Speakers can effortlessly withstand the worst mother nature can dish out, whether its extreme temps or heavy rains. Why you should consider this productIf you're looking for great high fidelity sound and a speaker you can locate even in the most exposed locations and forget about, the Atrium 4 is the one to choose. Its high quality components deliver impressively big sound from this small, unobtrusive loudspeaker, and its compact size makes it ideal for tight, out-of-way installations. Easy mounting, four-season durability, and the award-winning Polk Audio sound, what could be better? Take a look inside this product4 1/2" (11.43cm) Dynamic Balance® long-throw mineral-filled polypropylene cone driver with butyl rubber surround3/4" (19mm) Dynamic Balance® anodized aluminum dome tweeter with rubber surroundA more steeply-angled baffle design maximizes critical mid- and high-frequency dispersion over a large area.Durable, mineral-filled polypropylene cabinet design. Sounds like a real speaker (not "an outdoor speaker"), and survives years of seasonal changes.Aluminum grilles and bracket, with stainless steel and brass hardware: No rust. Ever.Gold-plated 5-way binding posts for the most secure, dependable hookups. TechnologyDynamic Balance®. Polk perfected the method of analyzing a speaker's microscopic behavior while in motion using laser Interferometry. With that information in hand, Polk engineers select the ideal combination of materials, geometry and construction techniques to literally "tune out" unwanted resonance. The result is a speaker that delivers pure, distortion free deep bass.Klippel Transducer Optimization. Using a state-of-the-art Klippel Distortion Analyzer, Polk engineers optimized the transducer's motor structure, voice coil alignment and suspension for longer excursion and greater linearity bringing you the best possible performance even at the most extreme listening levels.Speed-Lock® Mounting System. Our proprietary system for easy, safe one-handed installations even in difficult locations. The greatly simplified mounting procedure means the end to "juggling" at the top of the ladder. Simply mount the bracket and click the speaker into place. Aim it, tighten it down, and fini! Outdoor convenience, indoor sound quality! The new bracket also has a 45-degree down angle. Why adjust a speaker to a 45-degree angle, when we can design a mounting bracket that lets you install the speaker at that angle permanently? It's another feature of Atrium's new mounting system and a simple, elegant solution. In the BoxAtrium 4 Outdoor LoudspeakerSpeed-Lock Mounting BracketOwner's ManualOnline Registration CardUse with these productsThe Atrium 4 is designed for outdoor use, so what better loudspeaker to use it with than more Atriums.DownloadsDownload the Manual Technical Specifications Driver Complements Mid/Woofer 1 - 4-1/2" Diameter (11.43cm)Dynamic Balance® Mineral Filled Polymer Cone with rubber surround Tweeter 1 - 3/4" Diameter (1.91cm) Dynamic Balance® Anodized Aluminum Dome Tweeter with Neodymium motor structure Electrical Overall Frequency Response 75Hz-25kHz Nominal Impedance 8 ohms Recommended Amplifier Power 10-80 w per channel Efficiency 89 dB Inputs Gold-plated 5-way Binding Posts Dimensions Cabinet Size 8-5/8" H x 5-11/16" W x 6-11/16" D(21.91cm H x 14.45cm W x 16.99cm D) Mounting Options 180-degree Speed-Lock® Mounting System Enclosure Type Sealed Shipping/Other Product Weight 3.60 lbs. (1.63kgs) Total Shipping Weight 9.50 lbs. (4.31kgs) Speaker Warranty1 5 years parts and labor (original purchaser) Shipping Unit Pair 1To ensure a valid warranty, Polk loudspeakers must be purchased at an Authorized Polk Audio home or car loudspeaker Dealer (such as desertcart.com). (If you're not sure a dealer is "authorized," call Polk Audio at 1-800-377-7655, and ask us.) The warranty is not transferrable, that means it applies only to the original purchaser. If you purchase your speakers from a private individual, that product is considered "used" and has NO factory warranty, no matter what the seller implies. The warranty is VOID if the serial number of the speaker has been removed or defaced. If you have any questions about your warranty coverage, or you think you need service, call Polk Customer Service at 1-800-377-7655. We're here to help you get the most from your new speakers!

Review: Polk Audio Never Disappoints – Amazing Outdoor Speakers! 🔊☀️ - I bought a **pair of Polk Audio Atrium 8 SDI speakers** for my **back patio expansion**, and they have been **nothing short of incredible**! The **beautiful design** blends seamlessly with my outdoor space, and they are built to withstand the elements. I paired these with a **SunFire amp**, and the **sound quality is simply awesome**—rich, clear, and powerful, even in an open outdoor environment. Mounting was **easy**, and the build quality feels **top-notch**, exactly what I expect from Polk Audio. I’ve been a **Polk Audio fan for almost 40 years**, and their **reputation for quality and durability** is well-earned. I still have an **older set in my garage that’s over 20 years old**, and they still sound fantastic—**which is exactly why I chose Polk again**! If you're looking for **high-quality outdoor speakers** that will last, these are a no-brainer. **Highly recommend!** 🎶🔥
Review: Nice size and sound quality for outdoor patio space - I purchased these as replacements for outdoor speakers that were installed on a new-to-us house, but that were no longer working. I bought the white version, and they compliment our home's exterior trim color nicely. Installation was a breeze -- each speaker is bolted to the house with two wood bolts, then attach the wire, and that's all there is to it. In my case, I am using a dedicated "left" and "right" speaker setup, so I cannot address how well these work when they are wired with both left and right speaker wires. I can say that you need to slide the switch/contact cover over on the back of the speaker if you are wiring them as "left" or "right" like you would for normal speakers, or else the sound is quite a bit softer. This makes more sense when you look at the unit itself--but there are two ways to wire each speaker, so follow the directions for your application and you'll be fine. As you'd expect, there is not a ton of bass to these speakers, however when connected to a home-owner quality sound system (Sony), they sound quite good as an external speaker, and better than ones that we had at our previous house. I'm hopeful that I can get at least 5 solid years out of these speakers in order to justify the price. We'll see how that works out, but I think Polk quality is quite good for my purposes, and I have confidence that it has been money well spent.

## Features

- ALL WEATHER CERTIFICATION - The speaker for all seasons. With rugged durability and premium build, these outdoor wired speakers can effortlessly withstand all elements including extreme temperatures and heavy rain
- ULTRA COMPACT - Compact outdoor loudspeaker with a 4.5” dynamic balance polypropylene woofer, ¾” anodized aluminum dome tweeter for outdoor speaker system
- EXCEPTIONALLY GREAT SOUND - High fidelity sound from outdoor patio speakers for small-to-medium areas. Atrium 4 can be installed by a pool, on the patio, in a sunroom, or anywhere in the backyard
- EASY INSTALLATION - One-click speed-lock mounting bracket for wall mount speakers offers anti-slip, one-handed installation; mount these outdoor speakers wired vertically or horizontally to deliver optimal sound in different setups
- EASY SETUP - Polk’s gold-plated 5-way binding post can easily connect to wired outdoor speakers or any modern AVR or amplifier

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00378KMEG |
| Audio Driver Size | 11.43 Centimeters |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #4,395 in Electronics ( See Top 100 in Electronics ) #1 in Outdoor Speakers |
| Color | White |
| Compatible Devices | Laptop, Personal Computer, Smartphone, Tablet |
| Control Method | Voice |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.6 4.6 out of 5 stars (9,855) |
| Date First Available | February 1, 2010 |
| Global Trade Identification Number | 00747192118808 |
| Impedance | 8 Ohms |
| Included Components | 2 White all-weather speakers, 2 Mounting brackets (installed), Owner's Manual, Online Product Registration card, Polk Audio brochure |
| Is Discontinued By Manufacturer | No |
| Is Waterproof | True |
| Item Weight | 3.6 pounds |
| Item model number | AM4088-A |
| Manufacturer | DEI Holdings |
| Material | Plastic Or Metal |
| Model Name | Atrium 4 |
| Mounting Type | Wall Mount |
| Number Of Circuits | 2 |
| Number of Items | 2 |
| Power Source | Battery Powered |
| Product Dimensions | 6.7"D x 5.3"W x 8.6"H |
| Recommended Uses For Product | For Indoor Use, For Outdoor Use |
| Set Name | Pair |
| Shape | irregular shape |
| Signal-to-Noise Ratio | 89 dB |
| Speaker Size | 4.5 Inches |
| Speaker Type | Outdoor |
| Special Feature | Bass Boost, Waterproof |
| Style | Atrium 4 |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 17 Centimeters |
| Surround Sound Channel Configuration | 2.0 |
| Tweeter Diameter | 0.75 Inches |
| UPC | 747192118808 |
| Unit Count | 2.0 Count |
| Warranty Type | Limited |
| Water Resistance Level | Waterproof |
| Wireless Communication Technology | No Wireless Communication Technology |
| Woofer Diameter | 4.5 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Polk Audio
- **Connectivity Technology:** Auxiliary
- **Frequency Response:** 25 KHz
- **Speaker Maximum Output Power:** 80 Watts

## Images

![Atrium 4 Outdoor Speakers with Powerful Bass (Pair, White), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System - Image 1](https://m.media-amazon.com/images/I/81H07VrMlZL.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## Questions & Answers

**Q: We do not have a covered deck. Could these outdoor speakers be totally exposed to the outdoor element?**
A: I have installed these speakers totally exposed and they have lasted several years the grills might become rusty looking depending on the area you're in

**Q: Are these compatible with Alexa/Echo Dot?**
A: These are not Bluetooth speakers so they will not work directly with Echos or Dots and need to be powered by an audio receiver. You can however, use an RCA or Bluetooth connection between an Echo or Dot and the reciever and stream to the speakers.

**Q: El precip es po un par de parlantes?**
A: Yes

**Q: Is this a 8ohm speaker?**
A: Yes, they are! 100% positive! I am driving them with a 8 ohm Yamaha receiver! Sound pretty good too.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Polk Audio Never Disappoints – Amazing Outdoor Speakers! 🔊☀️
*by F***Y on April 4, 2025*

I bought a **pair of Polk Audio Atrium 8 SDI speakers** for my **back patio expansion**, and they have been **nothing short of incredible**! The **beautiful design** blends seamlessly with my outdoor space, and they are built to withstand the elements. I paired these with a **SunFire amp**, and the **sound quality is simply awesome**—rich, clear, and powerful, even in an open outdoor environment. Mounting was **easy**, and the build quality feels **top-notch**, exactly what I expect from Polk Audio. I’ve been a **Polk Audio fan for almost 40 years**, and their **reputation for quality and durability** is well-earned. I still have an **older set in my garage that’s over 20 years old**, and they still sound fantastic—**which is exactly why I chose Polk again**! If you're looking for **high-quality outdoor speakers** that will last, these are a no-brainer. **Highly recommend!** 🎶🔥

### ⭐⭐⭐⭐⭐ Nice size and sound quality for outdoor patio space
*by R***B on September 1, 2022*

I purchased these as replacements for outdoor speakers that were installed on a new-to-us house, but that were no longer working. I bought the white version, and they compliment our home's exterior trim color nicely. Installation was a breeze -- each speaker is bolted to the house with two wood bolts, then attach the wire, and that's all there is to it. In my case, I am using a dedicated "left" and "right" speaker setup, so I cannot address how well these work when they are wired with both left and right speaker wires. I can say that you need to slide the switch/contact cover over on the back of the speaker if you are wiring them as "left" or "right" like you would for normal speakers, or else the sound is quite a bit softer. This makes more sense when you look at the unit itself--but there are two ways to wire each speaker, so follow the directions for your application and you'll be fine. As you'd expect, there is not a ton of bass to these speakers, however when connected to a home-owner quality sound system (Sony), they sound quite good as an external speaker, and better than ones that we had at our previous house. I'm hopeful that I can get at least 5 solid years out of these speakers in order to justify the price. We'll see how that works out, but I think Polk quality is quite good for my purposes, and I have confidence that it has been money well spent.

### ⭐⭐⭐⭐⭐ Great sounding speakers
*by T***T on November 7, 2025*

These Polk Atrium 6's really are a great sounding set of speakers. I embarked on setting up a "Zone 2" set of outdoor speakers on my back patio, which will eventually run off a spare Marantz AVR (SR5009) that I have in the garage, daisy-chained to a Marantz 8802 in my living room. I really wanted to take some time to compare some speakers before making a decision, and decided to try the Polk Atrium 6, Klipsch AW-650, and two speakers from OSD - the AP640 and AP650. I disconnected my beloved B&W CDM-6NT tower speakers and hooked each of the candidate speakers up to a great sounding Jolida tube amp with Denon CD player, running each of them through jazz, various rock, and country selections including Stan Getz, live Allman Brothers, Dave Brubeck, etc. I pretty much ruled out the OSD AP640 right away - they were very hollow and underwhelming for my taste. The AP650's were better (IMO), perhaps tighter (enclosed box) but still seemed to lack some bandwidth, and the low-end just wasn't doing it for me, although I realize these are small outdoor speakers and don't expect to shake any windows with them. Had I bought them by themselves, I probably would have liked them better but they just didn't stack up to the Klipsch or Polk's. I really liked the Klipsch AW-650's, but trying them side by side with the Polk's, my ears couldn't help but prefer the Atrium 6's. The Atrium 6's just did it for me - warm, crystal clear, neutral sound across the spectrum and surprisingly I like their lower frequency response over the Klipsch AW-650's, which have a larger driver in them. I ended up leaving the Polk Atrium 6's hooked up in my living room last night, switched them over to my Marantz AV-8802/Outlaw Audio 5000X (AVR & amp) system, and watched some programming on Netflix. Using the Atrium 6's as my Right/Left channels, they did well paired with my center channel and subwoofer, and this morning I'm still enjoying them immensely - they're back on the tube amp, and playing Miles Davis, Kind of Blue, in the other room while I type this. Horns and piano are remarkably clear from here (50' away), and string bass is very natural and enjoyable - I can hear it very clearly even with the amp running at low volume in the other room. As a side note, I passed on the Klipsch AW-650's but did like them - I think if I were placing speakers in a larger outdoor area, perhaps to send sound across a pool and larger patio area, I may have kept them instead. In the end I just really preferred the natural, intimate sound of the Polk Atrium 6's. If I had anything negative to say about the Polk's, it's nothing to do with sound but rather with what I see as a design oversight on the speaker connections themselves. If you prefer to use banana plugs, over the binding posts, be forewarned that there isn't a whole lot of room to plug them in - the speaker connections are recessed in the back of the speaker and even though they're angled slightly, there isn't much room between them and the speaker enclosure - I couldn't use my banana plugs to hook them up without feeling like I was going to bend or break something, so opted to use the binding posts instead. Not a deal breaker but seriously this should have been addressed in engineering. Nevertheless I HIGHLY recommend giving these a try - happy listening!

## Frequently Bought Together

- Polk Audio Atrium 4 Outdoor Speakers with Powerful Bass (Pair, White), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System
- Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor/Outdoor/Garage/Ceiling/Bookshelf Speaker
- GEARit 14/2 Speaker Wire (100 Feet) 14 Gauge (Copper Clad Aluminum) - Outdoor Direct Burial in Ground/in Wall / CL3 CL2 Rated / 2 Conductors - CCA, Black 100ft

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-16*