This Kevlar in-wall speaker offers the perfect combination of performance and style. The use of aramid fiber for the woofer means that the speaker can hit harder, go lower, and handle more power with significantly less distortion than conventional drivers. The titanium silk dome tweeter produces clean, crisp, and clear highs and mids.You can fine tune the blend of sound using the built-in high frequency attenuator in case your room is too bright. The metal grille can be painted to match your ceiling. Easy to install with simple hand tools, less time working and more time relaxing.All Caliber series in-wall and ceiling speakers are sonically matched to provide a uniform sound stage across you entire listening area. Simple two channel listening rooms to full screening rooms with 7.2.4 Atmos and DTS-X immersive cinema systems will benefit from the matched components of the Caliber series installation speakers.Model: 6816Frequency Response: 50 Hz ~ 20 kHzImpedance: 8 ohmsPower Handling Capacity: 100 watts Nominal, 200 watts maximumWoofer: 9"" Kevlar woven cone with 30 oz. magnet and rubber surroundMidbass: 3"" Kevlar woven cone with 5.4 oz. magnet and rubber surroundTweeter: 1"" Silk Membrane domeSensitivity: 90dB ±2dB (1.0m/2.83V)Crossover: 12dB per Octave (with -3dB, -6dB Switch)Cut-Out Dimensions: 12.8"" x 8.7"" 3.6"" (324 x 222 x 91 mm)Overall Dimensions: 14.1"" x 10.0"" x 3.9"" (357 x 255 x 100 mm)