JBL has speakers in that price range. They bang for the buck with Dynamics, kick. Might not be the most smooth in the midrange, or treble but Dynamic. It depends what you like.
Sound Stage and Imaging
I love speakers who 'paint a big picture' (I am literally closing my eyes and trying to SEE a picture). Therefore I THINK I like to see IMAGING and BIG SOUND STAGE. And also like DYNAMICS.
Being frugal (just not willing to spent audiophile level money on it), I love to persuit 'bang for buck' solutions in general.
With above goals in mind for a speaker: what hits the marks in the low fi (audiphile scale) $2k (used or new) budget range. (I have 2 setups: one HUGE room, one 20x20).