---
product_id: 375164760
title: "Polk Audio Atrium 8SDI Speakers (Black)"
brand: "polk audio"
price: "$1860.83"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/375164760-polk-audio-atrium-8sdi-speakers-black
store_origin: US
region: United States of America
---

# Speed-Lock One-Hand Mounting Mil-Spec Salt & Corrosion Proof 125W Powerful Outdoor Audio Polk Audio Atrium 8SDI Speakers (Black)

**Brand:** polk audio
**Price:** $1860.83
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your outdoor vibe with military-grade sound that’s built to last!

## Quick Answers

- **What is this?** Polk Audio Atrium 8SDI Speakers (Black) by polk audio
- **How much does it cost?** $1860.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/375164760-polk-audio-atrium-8sdi-speakers-black)

## 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 Installation:** Speed-lock mounting system enables quick, secure one-handed setup even in tough spots.
- • **Wide Coverage Soundstage:** Steeply-angled baffle design maximizes mid and high-frequency dispersion across large spaces.
- • **Military-Grade Durability:** Built to withstand salt fog, immersion, and corrosion for unmatched outdoor endurance.
- • **Crystal-Clear High Frequencies:** Anodized aluminum tweeter domes deliver smooth, broad highs from 12kHz to 20kHz.
- • **Seamless Bluetooth Connectivity:** Wirelessly stream your favorite playlists with reliable Bluetooth tech and 125W power.

## Overview

The Polk Audio Atrium 8SDI is a rugged, 125-watt outdoor speaker engineered to military standards for salt, corrosion, and water resistance. Featuring anodized aluminum tweeters and a wide-dispersion baffle, it delivers crystal-clear highs and broad sound coverage. Its innovative speed-lock mounting system ensures quick, secure installation, while Bluetooth connectivity offers wireless convenience for any outdoor setting.

## Description

Full description not available

## Features

- Atrium series speakers exceed baseline industrial and military specifications for environmental endurance (ASTM D5894-UV Salt Fog, Mil Standard 810 Immersion, Mil Standard 883 Method 1009.8 for salt and corrosion)
- Anodized aluminum tweeter domes with rubber surrounds are absolutely immune to the elements, provide the smooth, broad high-end range you need for larger outdoor spaces
- Newly designed tweeter phase cap smoothest the frequency response from 12KHz up to 20kHz, the last audible octave
- Broad coverage baffle design adapted and applied from our current Atrium design but a more steeply-angled baffle design that maximizes critical mid and high-frequency dispersion over a large area
- Speed-lock mounting system for easy, safe one-handed installations even in difficult locations

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Mounting Type | Floor Standing |
| Model Name | ATRIUM8B |
| Speaker Type | Outdoor |
| Special Feature | Radio |
| Recommended Uses For Product | Military,Outdoor |
| Compatible Devices | Laptop, Personal Computer, Smartphone |
| Subwoofer Diameter | 6.5 Inches |
| Surround Sound Channel Configuration | 2.0 |
| Colour | Black |
| Included Components | Mounting Bracket |
| Product Dimensions | 23.4D x 21.6W x 32.8H Centimeters |
| Item Weight | 4.4 kg |
| Impedance | 8 Ohms |
| Is Waterproof | TRUE |
| Maximum Range | 10 metres |
| Number of Items | 1 |
| Control Method | Voice |
| Wireless Communication Technology | Bluetooth |
| Speaker Size | 6.5 Inches |
| Power Source | ac |
| Woofer Diameter | 6.5 Inches |
| Tweeter Diameter | 1 Inches |
| Water Resistance Level | Water Resistant |
| Customer Package Type | Standard Packaging |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Audio Driver Type | Dynamic Driver |
| Audio Driver Size | 6.5 Inches |
| Subwoofer Connectivity Technology | Wired |
| Series number | 8 |
| UPC | 747192118891 |
| Style | Atrium 8 |
| Global Trade Identification Number | 00747192118891 |
| Manufacturer | Polk Audio |
| Shape | rectangular prism body |
| Model | AM8085-A |
| Model Year | 2014 |
| Batteries | 1 Lithium Ion batteries required. |
| Item model number | AM8085-A |
| Special Features | Radio |
| Aspect Ratio | Unknown |
| Audio input compatible with the item | Auxiliary |
| Speakers Nominal Output Power | 125 Watts |
| Noise Level | 88 Decibels |
| Speaker amplification type | Active |
| Speaker connectivity | Wired |
| Audio Wattage | 125 Watts |
| Wattage | 2 |
| Batteries Included | No |
| Batteries Required | No |
| Does it contain liquid? | No |
| Includes Rechargeable Battery | No |
| Includes remote | No |
| Item Weight | 4 kg 400 g |

## Product Details

- **Brand:** Polk Audio
- **Speaker Maximum Output Power:** 125 Watts
- **Frequency Response:** 27000 Hz
- **Connectivity Technology:** Bluetooth
- **Audio Output Mode:** Stereo

## Images

![Polk Audio Atrium 8SDI Speakers (Black) - Image 1](https://m.media-amazon.com/images/I/81kaGhogmjL.jpg)
![Polk Audio Atrium 8SDI Speakers (Black) - Image 2](https://m.media-amazon.com/images/I/81mU-REiWoL.jpg)
![Polk Audio Atrium 8SDI Speakers (Black) - Image 3](https://m.media-amazon.com/images/I/61PjXa-yvlL.jpg)
![Polk Audio Atrium 8SDI Speakers (Black) - Image 4](https://m.media-amazon.com/images/I/712HLQdZc5L.jpg)
![Polk Audio Atrium 8SDI Speakers (Black) - Image 5](https://m.media-amazon.com/images/I/71evfk1FtCL.jpg)

## Questions & Answers

**Q: Are these original speakers?**
A: No, there were speakers long before these existed.

**Q: Does it need to be plugged in at all times?**
A: These speakers require speaker wire to be connected to them when being listened to. There is no power cable to be plugged in.

**Q: Is this a single speaker or a pair of speakers?**
A: Since this question was asked regarding the Atrium 8 version but Amazon shows it under both the 6 and 8 version, the Atrium 8 version is sold as a single speaker. The Atrium 6 version (and smaller) are sold as pairs.

**Q: What is the rms wattage per speaker? I cannot get a straight answer!**
A: Polk claims they will handle up to 125 watts per channel, but with a sensitivity of 91dB 《8 ohm) these speakers get very loud quickly. I have an older Technics H class receiver (100 watts p/ch) & have never pushed over half volume on my pair. Note: I do enjoy cranking it up. With a freq. response of 45 - 27,000Hz, I found a sub wasn't needed. Placement, area & environment ( walls, height, corner availability) make a big difference when installing them correctly, but wattage shouldn't be a concern. These speakers are a great buy for the price.

## Frequently Bought Together

- 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
- Sonos Amp - The Versatile Amplifier for Powering all your Entertainment - Black
- Polk Audio RC80i 2-Way Premium in-Ceiling 8" Round Speakers, Set of 2 Perfect for Damp and Humid Indoor/Outdoor Placement - Bath, Kitchen, Covered Porches (White, Paintable-Grille)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-31*