Amazon.com: Two Medium Light Weight Speaker Covers for C-Bracket Mounted Outdoor Speakers in Black Size H 13.6" x W 7.9" x D 8.9" - Fits Yamaha AW294, Definitive Technology AW 5500, Polk
Amazon.com: Polk Audio Atrium 4 Outdoor Speakers with Powerful Bass (Pair, White), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System : Electronics
Amazon.com: Bose 151 SE Environmental Speakers, Elegant Outdoor Speakers. Outdoor Stereo Speakers that blend easily into your environment - Black : Electronics