I just went through a process of choosing new speakers in your price range. To meet your non beryllium requirement I would choose,out of the many good choices listed here, a used pair of Stenheim Alumine 3 or 5 used. There have been pairs of both on Agon recently. They lack for nothing and are quite efficient at 1w/94db. I decided I wanted beryllium and bought a pair of Magico Q3s instead.
