Speakers and amp under 300?

Looking for a pair of speakers that can fill a medium sized room and pretty loud. Mostly looking for good sound stage, clear and accurate sound. I have a polk audio powered subwoofer, so maybe something that would pair nice with that? Thanks. Also need an amp.

In that price range a pair of active studio monitor speakers is a good choice like the adam t5v, rcf arya 5pro, yamaha hs5…