OSD Audio ICE870 Angled 150W LCR In-Ceiling Speaker with 8" Carbon Fiber Woofer, Dolby Atmos Ready (Single) Angled speakers provide flexibility in home theater placement; Dolby Atmos ready 8" Carbon Fiber cone woofer; 1" Aluminum pivoting dome tweeter Frequency Response: 55Hz- 20kHz; 89dB Dimensions: 11.6" x 5.4"; Cutout: 10"