Atrium 8 SDI features a single/dual input switch and dual tweeter array that lets you work the speaker as a single high-performance stereo loudspeaker, or L/R speaker in a high-performance stereo pair. It’s time to get that indoor sound you love - all from an outdoor loudspeaker you can put anywhere around your home. All-Weather Certified and Water-Resistant—built to withstand the worst elements—salt-fog, UV, extreme temps or heavy rains, you name it. Equipped with a Dynamic Balance driver and two tweeters the speaker provides a more realistic sound reproduction at high and low volume levels, and delivers clean midrange and deep, accurate bass. Durable speaker cabinet design with aluminum grilles and bracket, stainless steel and brass hardware survives years of seasonal changes without compromising on premium outdoor sound.