OP,you need to provide a lot more information...What is your budget?How big is the listening room?What are the acoustic properties of the room,ie:bare sheetrock walls/lots of glass/hard floors or carpet/lots of overstuffed furniture or barely any?What kinds of music do you listen to & how loud do you listen?Will you add even a basic amount of acoustic room treatments at a later date?
With your amp having only 18wpc.@ 8 ohms/20wpc.@ 6 14wpc.@4 ohms you want something that doesn’t drop below 6 ohms throughout it’s entire operational frequency range..
If you have a smallish room,say something around 12’ x 14’ (+-2’),listen to a variety of music at normal levels with an occasional rock out mode,my recommendations without knowing anything else but your amp,I would say ProAc Response D2,Harbeth M30.2Xd’s,Spendor Classic 3/1 or Reference 3a DeCapo with the factory available silk dome tweeter instead of the Beryllium version...
