Hortus Audio unveiled its S Series more than half a dozen years ago yet the 4 x passive speakers remain vital in Hortus Audio’s mission to delivery the highest quality sound to a multitude of human gatherings. The S Series applies to almost every venue in which our professional sound resonates such as auditoriums, bars, clubs, concerts, government functions, hotels, lounges, museums, religious ceremonies, restaurants, shopping malls, stadiums and theatres.