Recommended power: 10 watts to 175 watts per channel; impedance: 8 ohms • Frequency response: 35 Hz to 23 kHz; sensitivity: 94 dB @ 1W/1m; high-efficiency output to 116 dB • 2-way in-wall speakers; drivers per speaker: 6-1/4-in. mid/high frequency horn with neodymium magnet and 8-in. injection-molded woofer with high-power magnet • Gold-plated terminals • Easy to install with built-in mounting system; swing-out fasteners clamp to interior surface of wall to assure solid installation; dog-leg mount style • Dimensions: 17-1/2 in. H x 10-1/8 in. W x 3-1/2 in. D; cutout: 16-1/8 in. H x 8-3/4 in. W • Weight: 11 lbs. per pair;• 5-year limited warranty on parts • Includes 1 pair of cloth decor grilles and 1 pair of metal paintable grilles.