Sonance Moderno MLCR 5-1/4" THX Rectangular In-Wall 2-Way Speaker Woofer - Two 5 1/4" woven glass fiber cones with rubber surrounds Tweeter - 1 silk dome Frequency Response - 75 Hz to 20 kHz +/- 3dB Efficiency - 92 dB 1w 1m Power handling - 100 watts maximum Impedance - 6 ohms nominal Speaker Dimensions - 6 7/8" wide x 13 3/8" tall x 3 1/2" deep