Introducing the JBL B-Series in-ceiling loudspeakers. Designed with paintable grilles to blend into your décor and crafted for wide sound dispersion, the JBL B-Series loudspeakers feature a modern, virtually invisible design, powerful JBL Signature sound and are easy to install. Built to last with quality materials including a moisture-resistant design, which are perfect for bathroom installations, the JBL B-Series loudspeakers also deliver high power handling and sensitivity for full sound.PRODUCT FEATURES:- Nominal Impedance: 4 ohm - Power (RMS/Peak): 35/150W - Frequency Response: 50Hz – 20kHz - Loudspeaker Sensitivity: 91dB - Woofer: 6.5" (165mm) Poly woofer - Tweeter: 0.5" (13mm) Polymer Tweeter - Cutout Dimensions: 9.7” x 7.2” (246mm x 182mm) - Grille Finished Dimensions8.4” x 10.9” (213mm x 277mm) - Mounting Depth: 3.3" (84mm) -