Bose Bose® 251® environmental speakers

The Bose 251 environmental speaker features a 5-1/4" woofer and two 2-1/2" Twiddler drivers with ultra-durable, polymer fiber composite cones built to withstand temperatures from a blistering 158° F to a frigid -40° F. Additionally, the speaker can withstand salt fog, sun, high humidity (100% RH), vibrations and mechanical shock. By precisely positioning the drivers inside the speaker cabinet, an Articulated Array speaker design can provide a large, consistent sound field. This allows for a more even sou...