Atlas Sound Horns Boast Better Coverage
Atlas Sound recently announced its latest line of constant directivity re-entrant horns in three different configurations: CD94 at 90x40 degrees, CD64 at 60x40 degrees, and CD42 at 40x20 degrees.
“Basically, this is a completely new twist on a well-known story,” said Bruce Marlin, Atlas Sound senior vide president of design and engineering, describing the evolution of the design. “The concept of a constant directivity horn was well defined by Don Keele in the early 1970s, and we're all familiar with it. What we've done today is simply taken the idea to the next level in the commercial market.”
Constant directivity horns are usually outfitted with either a refraction slot or standard throat. Atlas Sound added a re-entrant design to the equation to give the three new models increased air column length, a decision the company says results in additional output and greater pattern control.
“This all translates into more efficiency, as well as a need for fewer and much smaller horns to achieve the same results of what formerly required larger horns,” said Marlin. “You obtain a much more impressive low-frequency response and more sensitivity out of the driver as well, and the horizontal coverage pattern is more precisely controlled over the entire frequency range.”
Well suited for paging, announcements, warning/signaling systems, and music, the constant directivity re-entrant horns are made from a polyester resin and fiberglass laminate. A molded die-cast zinc throat section and heavy-duty steel mounting bracket in each design accommodates the company's PD series drivers.
All three models are expected to be available later this year.