Active Audio is well-known for using the patented DGRC (Digital & Geometric Radiation Control) principle in its column loudspeaker systems. Mainly distributed in Europe and Asia, the StepArray and Ray-On column loudspeakers are of intuitive use, discreet design, and easy to install.Active Audio’s expertise is at the crossroads of acoustics and sound reinforcement : products use the means of sound reinforcement (microphones, filters, loudspeakers, etc) for solving acoustical problems.