Sound reproduction, amplifying and diffusion apparatus; loudspeakers; horns for loudspeakers; speaker units; sub-woofers; tweeters; software drivers

Loudspeakers; horns for loudspeakers; loudspeakers units; audio crossover filters; electric and electronic apparatus for sound reproduction

actuators, sensors, loudspeakers, electro-mechanical and electro acoustic transducers, integrated electronic processor for wave analysis and synthesis