AudioSource AS7C 6.5-Inch Dual Voice Coil Summed Mono In-Ceiling Speaker (Single) (Discontinued by Manufacturer) Two-way speaker with frequency response of 45 Hz to 20 kHz Dual voice coil and twin angled tweeters create stereo sound from a single speaker Power handling of 75 watts Sensitivity of 88 dB Moisture-resistant polypropylene woofers and rust-proof grill