Klipsch Reference Series RC62 Dual 6.5" Center Channel Loudspeaker - Black Ash FREQUENCY RESPONSE - 57Hz-23kHz +/-3dB POWER HANDLING - 150W RMS / 600W Peak SENSITIVITY - 96dB @ 2.83V / 1m NOMINAL IMPEDANCE - 8 ohms compatible HIGH FREQUENCY DRIVERS - 1 (2.54cm) Titanium diaphragm compression driver mated to 90x60 square Tractrix Horn