VM AUDIO 6.5" 5.1 Full Home Theater In Wall In Ceiling Surround Sound System Type: 2-Way Enclosure Type: In-Ceiling Tweeter Type: Mylar Dome Woofer Size: 6.5" Cone: Polypropylene 12, 6.5-inch 2-way high-performance in-ceiling speakers RMS: 55 watts Peak: 175 watts Sensitivity: 89 dB Impedance: 8 Ohms Frequency Response: 63Hz - 20k Hz High-gauge steel frame