AudioSource IC7S Round Ceiling Speaker, White (Single) (Discontinued by Manufacturer) In-ceiling speaker with 6.5-inch polypropylene woofer and .63-inch center-mounted tweeter Mounts inside ceiling cutout for use as primary speaker or supporting surround sound speaker 75 watts of total power; 70 Hz to 20 kHz frequency response Uses ceiling and space behind it as speaker cabinet Measures 9 inches in diameter and 3 inches deep and weighs 4 pounds