KEF C6LCR Speaker - Black (Single) 2-way acoustic suspension center channel speaker 19-millimeter (0.75-inch) aluminum tweeter, 2 x 130-millimeter (5.25-inch) mid-range/bass drivers Dual-layer baffle construction for extended punch and projection of sound Features KEF's "tangerine" waveguide for smoother, clearer high frequency response Sold as a single speaker