Public address sound reinforcement
Active Audio is specialized in the design and manufacturing of PA systems, and more specifically of column loudspeakers dedicated to large spaces where intelligibility is essential, such as worship places, railway stations, conference rooms, shopping malls, etc.
Its Public Adress systems include StepArray, a DSP columns range already used all over the world (ex: Carrousel du Louvre in Paris, Moscow Chamber of Commerce, Zhongnanhai in Beijing, Soissons’ Cathedral in France); Ray-On 100, the only passive column on the market designed to be vertically mounted; and SAG32PA, a stand-alone amplified loudspeaker originally created to guide the visually impaired, which, diverted from its primary use, is perfect for museums and amusement parks.
Active Audio has always worked towards providing innovation in every of its products, both in terms of acoustics and electronics. Its columns loudspeakers, StepArray and Ray-On, as such are based on the DGRC principle (Digital and Geometric Radiation Control), patented by Active Audio. DGRC uses the line-source principle which is a synthesis of electronic and geometric arrays.
Geometric Line-Array
In a geometric array, loudspeakers are aligned to follow the shape of the wave front to be generated, usually a J shape.
Electronic Line-Array
In an electronic array, loudspeakers are aligned vertically and the J-shaped wave front is created by adjusting delays Di, filters Fi and gains Gi relating to each loudspeaker.
DGRC Principle:
Geometric + Electronic
With the DGRC principle (Digital and Geometric Radiation Control) used in StepArray and Ray-On columns, the wave front is shaped and controlled by both the geometric positioning and orientations of the loudspeakers, and the electronic adjusting of delays Di, filters Fi and gains Gi of each channel.
One of the principal advantages brought by the DGRC principle is a vertical mounting of the column very close to the wall.
Mainly distributed in Europe and Asia, the StepArray and Ray-On column loudspeakers are of intuitive use, unobtrusive looks and integrate a high degree technology that support the user.
