Downfill HF Loudspeaker
The KF911F is a dedicated HF downfill module engineered for use with Phase Point Source Technology digital signal processing in the creation of PPST arrays. It provides coverage from -15 degrees to -45 degrees below the horizontal axis with flat frequency response, with usable response down to -60 degrees. In stadium and arena applications where the highest seats are above the array, an inverted KF911F can provide “up-fill” coverage. Because the enclosure’s bottom is sealed, the downfill element can be placed at any location in the array.




  • High Frequency
  • 2 x 2 in compression drivers, horn-loaded
  • Installation & Touring