Adamson Industries Corp. introduces the 100D Series Speaker by SoundOff Signal. This 100D Series professional speaker has undergone a series of grueling tests including testing for dust, high and low temperature, water, salt, and vibration. Officers can be sure this rugged speaker will stand up to all kinds of environmental conditions. The speaker meets SAE J1849 certification and is CA Title 13 Class A Compliant. Benefits and features of the 100D Series Speaker include 100 watts of dynamic sound with super clear voice and siren output. This speaker is specifically designed for narrow and small spaces at under 3 inches wide. It is easy to install and field replaceable and can be mounted horizontally or vertically with adjustable bracket. Available in a black powder coat finish. Now available, vehicle specific brackets for Ford Crown Victoria 2005+, Chevy Tahoe 2006+, Chevy Impala 2006+.