What's the best bookshelf for a Sudgen A21SE?


I am using B&W 685s with this class A SS integrated (30w/ch into 8 ohms)with Verstarr cables, interconnects, power chord and Panamax 5400ex power conditioner. I am looking for something with tighter, lower bass under 40hz and sensitivity above 91db under $2k. Any advice?
mrasiah