Q Acoustics 3090c Center Channel Speaker (Graphite) The center channel speaker allows for dialogue to be heard clearly while locking that dialogue to the screen. Our 3090c delivers an especially clear and dynamic sound while acoustically complementing any of the 3000 Series models Enclosure: 2-way reflex. Bass Unit: 2 x 100mm. Treble Unit: 25mm Frequency Response (+/-3dB): 75Hz-22kHz. Nominal Impedance: 6 ohm. Sensitivity: 89dB Recommended Power: 25-100w. Crossover Frequency: 2.7kHz Box includes: (1) Q Acoustics 3090c Centre Channel Speaker (Graphite), (1) Magnetic Speaker Grill, (2) Port Bungs, (1) User Manual, (1) Pair White Cotton Speaker Handling Gloves