We do not have a covered deck. Could these outdoor speakers be totally exposed to the outdoor element?

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

Are these compatible with Alexa/Echo Dot?

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.

Is this a 8ohm speaker?

Yes, they are! 100% positive! I am driving them with a 8 ohm Yamaha receiver! Sound pretty good too.

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Polk AudioAtrium 4 Speakers - White

Product ID: 51159422

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Details

Brand
Polk Audio
Speaker maximum output power
80 Watts
Frequency response
75 KHz
Connectivity technology
Wired
Audio output mode
Stereo
Mounting type
Wall Mount

🔊High fidelity sound clarity

🌧️All-weather certified durability

🛡️Military-grade environmental endurance

Description

🔊 Elevate your outdoor vibe with sound that’s as bold as you are!

CUSTOMIZABLE FINISH - Durable, paintable exterior lets you seamlessly blend your speakers into any aesthetic.
BROAD COVERAGE DESIGN - Enhanced baffle design delivers wider sound dispersion for full-room immersion.
MILITARY GRADE TOUGHNESS - Exceeds industrial and military standards for durability—built to last in any environment.
IMMERSIVE SOUND EVERYWHERE - Experience crystal-clear, high fidelity audio that transforms any space.
BUILT TO BRAVE THE ELEMENTS - Certified all-weather speakers that withstand rain, sun, and snow without skipping a beat.

The POLK AUDIO Atrium 4 Speakers deliver premium high-fidelity sound with an improved baffle design for broader audio coverage. Engineered to exceed industrial and military environmental standards, these all-weather certified speakers feature a durable, paintable finish, making them perfect for any outdoor setting.

Specifications

Is Electric	No
Power Source	Battery Powered
Speaker Maximum Output Power	80 Watts
Subwoofer Connectivity Technology	Wired
Connectivity Protocol	Bluetooth
Connectivity Technology	Wired
Audio Driver Size	11.43 Centimeters
Number Of Circuits	2
Audio Driver Type	Dynamic Driver
Item Weight	3.6 Pounds
Item Dimensions D x W x H	6.3"D x 7.5"W x 9.5"H
Unit Count	2 count
Impedance	8 Ohm
Frequency Response	75 KHz
Compatible with Vehicle Type	Car
Compatible Devices	Laptop, Personal Computer, Tablet, Smartphone
Speaker Size	4.5 Inches
Woofer Diameter	4.5 Inches
Tweeter Diameter	0.75 Inches
Water Resistance Level	Waterproof
MP3 player	No
Specific Uses For Product	[OUTDOOR USE ONLY]
Controller Type	Corded Electric
Color	White
Is Waterproof	TRUE
Warranty Type	Limited
Control Method	Voice
Audio Output Mode	Stereo
Mounting Type	Wall Mount
Material Type	Polypropylene, Aluminum
Speaker Type	Outdoor
Additional Features	Bass Boost, Waterproof
Recommended Uses For Product	For Outdoor Use
Subwoofer Diameter	17 Centimeters

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