Polk Audio Atrium 4 Outdoor Speakers 4-Pack
- 4 speakers, black
- 4.5 inch woofer, .75 inch aluminum dome tweeter
- 8 ohms, 89 dB sensitivity
- 75-25,000 Hz frequency response
- 80W power
- 8.6 x 5.8 x 6.8 inches (H x W x D)
- All-weather, aluminum enclosure
Updated 3 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A four-pack of compact all-weather speakers that mount vertically or horizontally to cover a patio, pool deck or sunroom with sound. Small woofers mean modest bass for large outdoor spaces.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0CFNV9W59Model: Atrium 4
Overview
Homeowners wiring a patio, pool deck or sunroom get four compact Polk speakers built to ride out heat and rain. A swiveling C bracket with a one-click speed lock lets one person hang each speaker upright or sideways under eaves or in corners.
Covering a whole outdoor area with one box is the reason to buy, since four speakers spread sound evenly instead of one loud spot. The angled baffle helps them tuck into wall corners. The limit is bass from small woofers, which thins out in open yards.
Who it's for
Backyard hosts, pool owners and sunroom setups get even coverage from four weather-ready speakers. People who want Bluetooth speakers they can carry should choose a portable model.
Pros and cons
- Four speakers for wide coverage
- Built for heat and heavy rain
- One-click speed lock bracket
- Mounts vertically or horizontally
- Small woofers limit bass outdoors
- No wireless connectivity
- Needs an amplifier and speaker wire run
- Mounting screws for your wall not listed
Performance notes
Even outdoor coverage comes from spreading several small speakers around the space rather than turning one up loud. Mounting under eaves or in corners adds bass reinforcement from the nearby surfaces. Weather sealing and the aluminum enclosure protect the drivers through temperature swings and rain.
Specifications
| Brand | Polk Audio |
|---|---|
| Model | Atrium 4 |
| Dimensions & fit | |
| Item Dimensions D X W X H | 6.8"D x 5.8"W x 8.6"H |
| Item Weight | 10 pounds |
| Subwoofer Diameter | 4.5 inches |
| Tweeter Diameter | 0.75 inches |
| Capacity & performance | |
| Audio Output Mode | Surround |
| Speaker Maximum Output Power | 80 watts |
| Power & efficiency | |
| Battery Average Life | 1 days |
| Construction & materials | |
| Color | Black |
| Enclosure Material | Aluminum |
| Compatibility & installation | |
| Compatible Devices | Any devices with audio output capabilities |
| Connectivity Technology | wired |
| Mounting Type | Wall Mount |
| Included components | |
| Customer Package Type | FFP |
| Warranty & support | |
| Warranty Type | Limited Warranty |
| Other details | |
| Additional Features | Waterproof |
| Audio Driver Type | Dynamic Driver |
| Control Method | Touch |
| Controller Type | Corded electric |
| Frequency Response | 25000 hertz |
| Impedance | 8 ohm |
| Is Waterproof | TRUE |
| Speaker Type | Outdoor |
| Water Resistance Level | Water Resistant |
| Wireless Technology | No Wireless Communication Technology |
Frequently asked questions
Can the Polk Atrium 4 stay outside all year?
Polk says they carry an all weather certification and withstand extreme temperatures and heavy rain.
Are the Polk Atrium 4 wireless?
No. They are wired speakers with no wireless technology listed.
Can the Polk Atrium 4 fit into a wall corner?
Polk says the steeply angled baffle and outer profile blend into the corners of outdoor walls.