The ALA20T-B column line array speaker delivers maximum pattern control performance in a minimum footprint and excels in applications that require excellent speech intelligibility. The ALA20T-B's transducer configuration combines twenty tight packed 3" full range drivers and six 3/4" high frequency tweeters in an extruded aluminum housing to offer both durability and optimum sound reproduction. The lightweight and easy to install enclosure has contemporary aesthetics that are a compliment to any environment. The back of the enclosure incorporates vertical channels that accept the included wall mount allowing the installer to slide the mount to the location that provides the desired vertical tilt. An optional pole mount bracket enables the array to be used in portable applications coupled with our A-Line subwoofer.