The HFSF1 Small-Profile Ceiling Speaker is intended for use in 70V commercial audio and paging systems. This sturdy speaker is easy to install and only requires a 6-1/4" diameter opening in walls, ceilings or ceiling tiles. Its 7.25" enclosure keeps it compact and unobtrusive. Selectable power taps are mounted in the front. The HFSF1 is an ideal solution for commercial offices, retail and anywhere a small 70V speaker is required. Mounts into a 6-1/4" diameter opening in ceilings, walls, etc. Installs in a wide range of ceiling types For 70V and low-impedance systems Off-white paintable finish Active or Passive Passive Frequency Response 78Hz - 20kHz Power Capacity 50W @ 16 ohms, 16W @ 70V Maximum Sound Pressure Level (SPL) 86dB Impedance Low (16ohms) / High (70V) Crossover Not Specified by Manufacturer Shielded No Low Frequency Driver 4" (10.16mm) Polypropylene Cone High Frequency Driver 3/4" Polycarbonate Dome Enclosure Material Baffle: Fire-rated (94VO) ABS Back Can: Plated steel Input Connections 4 Terminal plug-in connector Dimensions 7.25" (18.41cm) Diameter 7.50" (19.05cm) Mounting Depth Weight 4.5 lbs (2.04kg) Packaging Info Package Weight 5.2 lb Box Dimensions (LxWxH) 9.2 x 8.2 x 7.9"