I haven't heard any true bookshelf speakers that could do a 3D soundstage.
As for any that go down to 45 Hz (-3dB), well, that's another huge ask for under $2k.
Your best bet might be to check the overachieving Q Acoustics 3030i (46Hz (-3dB).
To really get that disappearing speaker 3D effect you should take a look at something like the Q Acoustics Concept 300s.
Bear in mind that they only go down to 55Hz and they're over $2k, but with their advanced cabinets they should be a clear improvement over the 3030is.
In fact the only speakers I can think of that might truly fit the bill would be the Wharfedale Elysian 2s (35Hz) but they cost $7k and you would need a pretty large bookshelf.