The NS-AW150B 2-Way All Weather Bookshelf Speaker is designed for outdoor use, this versatile two-way speaker functions beautifully in front, rear, or both positions. Its 5 inchwoofer and 1 inchglass filled dome tweeter set a soundstage that achieves impressive efficiency and dynamic range in any size space. Whether the listening occasion calls for a symphony orchestra or battlefield drama, this model can summon either with equal conviction in any two-channel or multi-channel audio system.