This package includes eight Atrium 8 SDi all-weather outdoor loudspeakers designed to deliver rich, room-filling sound in any outdoor space. Each speaker features a 6.5 inch polypropylene woofer, dual aluminum dome tweeters, and a selectable single or dual input mode, allowing use as a high-performance stereo speaker or as part of a left/right pair. Built for year-round performance, they are engineered to withstand sun, rain, and humidity while maintaining clear vocals, detailed highs, and powerful bass. Advanced bass venting enhances low-end response, while the Speed-Lock mounting system allows fast, secure installation with precise aiming, making it easy to bring immersive, high-quality audio to patios, decks, porches, and sunrooms.