The Messenger Series features the latest technology based on a patented algorithmic technique and is designed for high quality speech and background music applications in reverberant acoustic environments where it is difficult to meet contractual speech intelligibility requirements. The Messenger has been successfully installed in a wide variety of venues including churches, airports, school gym auditoriums, soccer stadiums, shopping malls, and conference facilities. In combination with the patented bass array from ATEIS frequencies as low as 35 Hz can be controlled for superior frequency response and audio quality even in concert venues. In applications where ceiling height and cost restrictions prevents the use of the Bass Array, a regular powered subwoofer will add musicality and low frequency response to any venue.