Wharfedale Diamond 8.1 Bookshelf Loudspeaker (Black Ash, pair) (Discontinued by Manufacturer) Handbuilt bookshelf speakers Self-damping, bidirectional woven Kevlar drive units with ultra-smooth phase plugs Double-wound, vented voice coils on bass/mid drivers Nitrile rubber inverted driver surround Bi-wirable, gold-plated terminals