Klipsch RC-64 II Reference Series Center Channel Loudspeaker - Each (Cherry) Part Number: RC-64 II Cherry Type: Center Channel Speaker Speakers Configuration: Center Channel Driver Units: 1.75 Titanium Tweeter 6.50 Cerametallic Woofer Frequency Response: 59Hz-24KHz Nominal Impedance: 8 Ohms Sensitivity: 99 dB Color: Cherry