DSA
| DSA | |
| |
| Company | Federal Signal Corporation |
|---|---|
| Produced | ?-present |
| Type | Electronic |
| Sound output | 111-121 dBc at 100 feet |
The DSA, short for Directional Speaker Array, is an electronic siren produced by Federal Signal Corporation. It it comprised of speaker modules that vertically hold two to six speakers with projectors. Up to four can be installed on a pole, and at different angles, depending on coverage requirements.