KEF iQ10BL Bookshelf Speaker (Pair, Black) (Discontinued by Manufacturer) 2-way bass reflex speaker 130-millimeter (5.25-inch) Uni-Q driver, 19-millimeter (0.75-inch) aluminum dome tweeter Reflex-ported cabinet Features KEF's "tangerine" waveguide for smoother, clearer high frequency response Sold as a pair