AIM Series in-ceiling speakers were the first to feature an aimable woofer/tweeter module that aims the sound in any direction you choose. No longer are you bound by the design of your room. Just mount the speakers wherever it’s convenient and point them wherever you want sound. Profile grilles are available in AIM8, AIM7 and AIM5 models. Specifications Flangeless Appearance 8" Glass Composite Cone Woofer Pivoting 1" Silk Dome Tweeter WavePlane Technology Front-Mounted Switch Allows for up to ±3dB of Bass and Treble Adjustment Timbre-Matched to All Two Series Speakers Sensitivity: 90dB 1W/1m Power Handling: 100 Watts Impedance: 8/6/4 Ohms, Depending on Switch Settings Frequency Response: 40Hz - 20kHz Diameter x Depth: 11 1⁄8" x 4 1⁄2" (303 mm x 114 mm) (with Grille) Cut-Out Diameter: 9 3⁄4" (248 mm))