best speakers for marantz 8b amp

looking for speakers to pair with my 7 & 8b system. i can spend up to $4000 but my apartment isn't all that big so i need something smaller in size. recommendations for highly efficient speakers?
The "MM de Capo i" by Reference 3a would be a nice choice. 92db efficiency, 8 ohm nominal load.
congrats....they are spectacular....speaker recommendations....castle harlech or howard. musical, tonally accurate, nor placement fussy, small footprint and a $ well with moderately powered push/pull amps, and have furniture quality as good as speakers in the 10k up range.
coincident technology