Polk Audio Atrium8 SDI

The Polk Audio Atrium8 SDI is an individually sold, all weather outdoor loudspeaker designed to evenly distribute premium outdoor sound in a small area like a deck or patio. A switching mechanism allows two Atrium SDIs to be tied together for 2-channel stereo playback in an evening larger listening area.

Featured is one 6-1/2” woofer, dual 1” tweeters, and a PowerPort bass venting system that allows it to deliver more deep bass than is typically from such a moderately-sized loudspeaker. Included also is a weatherproof design which means the speakers can be left outdoors during bad weather, and a Speed-Lock system that simplifies the mounting process.