Speaker suggestions for MBL C51 C31 set up

Looking for speaker suggestions for my new set up. MBL C51 and C31. I currently have Usher 8571's. I moved from an Aesthetix Calypso/Atlas rig. The new system seems a bit cold sounding but coming from that Aestheix set up I guess that is to be expected. The room is 14 x 22 with speakers on the long wall 40" out. The obvious MBL choice is out of my price range. Looking to spend 5K used. I don't need a ton of detail, just need to be musical.

Thanks!

Russ