Phoenix Gold ATc6DM 6.5-inch In-Ceiling DVC Tweeter (Single) (Discontinued by Manufacturer) Two-way speaker with frequency response of 50 Hz to 20 kHz Dual voice coil and twin angled tweeters create stereo sound from a single speaker Sensitivity of 90 dB Moisture-resistant polypropylene woofers and paintable grill Ideal for home theater or distributed sound