Recommend me Bookshelf for Office

Hi all,

As some of you may know I am selling of my Danley setup and moving my office theatre. I am currently looking for book shelf speakers and possibly run them with a small subwoofer.

The Amplifier will be a Quested AP750. Which is 750 watts into 4obms and 475 watts into 8 ohms. This is a studio amplifier made by a British company.

I am looking for New or Used, Budget approx. 2000 dollars could push it if its justifiable.

Kef LS50
Selah Audio Tempesta
Kef R300
ascend acoustics

Or any other, Bass under 50hz is not an issue as im going to integrate them with a SVS Sealed subwoofer.

This system will be for my office. possibly near my desktop.