Type: In-Ceiling/In-Wall Speakers Driver Units: Woofer: 4" (10cm) double-layered cone Power Rating: 90 W Frequency Response: 95 Hz - 40 kHz Nominal Impedance: 8 ohms Sensitivity: 87 dB (2.83 V, 1 m) Dimensions & Weight: Dimensions (Diameter x Depth): 5.88" x 3.38" / 150mm x 86.5 mm Weight: 1.8 lbs. (0.8 kg) Features: Yamaha original double-layer 4� cone create natural sound tonality Ridge-shape aluminum center cap with stair-like speaker surround helps smooth frequency response from low to high Grain-finished acoustic baffle with spiral pattern for natural sound dispersion Slim profile design for flush in-ceiling or in-wall mounting Sealed back cover to protect speaker and crossover from dust and moisture Paintable grille with magnets for quick and easy installation Large moun...