Picking a speakers

Hi guys, I need your opinion on which speakers to pick. I recently purchased a 2 Bowers and Wilkins 805S and HTM2 for a center channel. I read somewhere that they don't match. And would need to get HTM4S to match 805S. Now, my question is: Should I purchase HTM4S and stick with 805S or should I purchase 804N and stick with HTM2? PS: I do have a nice velodyne servo subwoofer, so the bass is not my problem.Thank you in advance!