Polk Audio New Monitor 15C Two-Way Center Channel Loudspeaker (Black) Single Type: Center Channel Speaker Driver Units: Tweeter Diameter: 1 (2.54cm), Dynamic Balance silk/polymer composite dome Midrange Diameter: 5 1/4 (13.34cm)x2, Dynamic Balance bi-laminate composite cone driver Power Rating: 20-125 watts per channel Frequency Response: Total Frequency Response: 55Hz-25Hz Upper -3 dB Limit: 24kHz Lower -3 dB Limit: 65Hz Nominal Impedance: 8 Ohms Sensitivity: 89 dB Connectors: 5-way binding posts inputs Color: Black