Your search for "holosonic" revealed the following:
HoloSonic Soundmasking system
$3,247.00Clearly, having loudspeakers twenty meters wide is not very useful.therefore ...to make a narrow beam of sound from a small...
24" Holosonic Emitter
$2,495.00Our larger AS-24i offers the strongest output and deepest low frequency response of all models.Designed for competing with noisier environments...
16" HoloSonic Emitter
$1,995.00Our most popular model, capable of producing clear and present speech or music.Designed for comfortable targeting 1 or 2 people...
AVL-CM1: Suspended Ceiling Mount Kit (for HoloSonic Systems)
$38.00Suspended Ceiling Mount Kit (for HoloSonic Systems) Data Sheet
