The Intellivox-DSX380 HD is capable of providing a constant sound pressure level over a distance of up to 45 m, although a substantial extension of this range can be achieved in less demanding acoustical conditions. The sixteen, custom designed, 4" loudspeakers and four discretely controlled, 1" dome tweeters are driven by a sixteen channel class-D amplifier, powered by a sophisticated switched mode power supply, all of which combine to ensure years of reliable operation. The individually driven horn loaded dome tweeters in the DSX HD units provide unsurpassed high frequency vertical beam control while improving the horizontal coverage and enhancing the subjective sound quality of the system for both speech and music. An extensive set of surveillance functions have also been implemented to meet the stringent demands of typical Voice Alarm (life safety) applications. The unit can be controlled using our proprietary WinControl software which offers user friendly control of the beam steering parameters, audio processing, pre-sets and surveillance features. Its compact array length makes the Intellivox-DSX380 HD suitable for easy and unobtrusive implementation in even the most architecturally sensitive environment. The low frequency response of the system can be easily extended using a JBL sub woofer system.