no magic. just science
EAW’s KF860 Series Virtual Line Array
Click on image above to see the full size version
VLA module’s individual midrange horns couple acoustically to create a horn with an effective mouth size over 5’x 5′ – big enough to provide constant directivity to well below the typical 250 Hz low/mid crossover. (See Olson, Acoustical Engineering, Sect. 2.20/ Curved-Surface Source.)
