Key Features

Indoor/Outdoor-Ready Construction — Designed to withstand environmental conditions (humidity, splashes, outdoor exposure) while also being usable indoors. That makes it versatile for use in patios, gardens, pool-side areas, balconies, as well as living rooms or covered verandas.

6.5″ Driver — Balanced Mid + Bass Response — The 6.5-inch driver gives a decent balance of midrange and low-mid (bass) frequencies compared with smaller outdoor speakers, which helps deliver fuller sound for music, movies or ambient background audio.

Each Speaker Sold Individually — You can buy single units to fit as needed (e.g. for surrounds, additional zones, or gradual expansion), offering flexibility in setup and budget.

Flexibility of Installation / Placement — As a weather-resistant speaker, you can mount or place it in a variety of indoor or outdoor positions — on walls, near ceilings, terraces or gardens — giving you freedom to design audio zones.

Good for Background Music, Multi-Zone Audio, or Mixed Indoor/Outdoor Use — Works well when you want dispersed sound for patios, garden parties, ambient music, or combined indoor-outdoor audio setups without needing large floor-standing speakers or a heavy-duty PA.

Reasonable Compromise Between Size and Performance — The 6.5″ size means it’s still more compact than big floor-standers, but powerful enough to hold its own for regular listening or moderate-volume playback, making it suitable for apartments, medium rooms and outdoor zones.

Description

Polk Audio Atrium 8 – 6.5” Indoor/Outdoor Speaker (Each) (Colours- Black/White)

Use Polk’s Atrium8 SDI speaker when you need maximum flexibility along with premium outdoor sound. It can stand alone as a single stereo speaker, or you can put two together for a high-performance stereo pair. One speaker is convenient when you want to pump tunes to a smaller area, like a deck or patio, or when mounting options are limited. If you have room for two speakers, these speakers will give you fuller sound and better stereo separation in larger listening areas. A simple switch allows you to choose between single-speaker or traditional two-speaker stereo playback.

This speaker boasts the build quality you’d expect from Polk. It gives you superb audio performance, thanks to dual 1″ tweeters, one 6-1/2″ woofer, and PowerPort® bass venting. And the rugged, weatherproof design meets or exceeds stringent military specifications for full exposure to the elements. That means you’ll enjoy years of great tunes, whether you install them in your bathroom or in your backyard.

Polk’s new Speed-Lock™ system makes mounting the Atrium8 SDIs quick and easy. Install the bracket and simply click the speaker into place. Then just aim the sound towards your listening area and tighten down the included thumbscrew.

all-weather enclosure

one 6-1/2″ woofer

two 1″ aluminum dome tweeters

Tweeter placement is designed for better stereo separation in single-speaker setups

PowerPort® technology for better bass response

frequency response 45-27,000 Hz

sensitivity 91 dB

impedance: 8-ohm stereo (dual-input) or 4-ohm mono (single-input)

handles up to 125 watts per channel

includes mounting hardware

8-1/2″W x 12-7/8″H x 9-7/16″D