Lots of little active nearfield monitors in that price range (Behringer, M-audio, KRK) but they aren't for party level SPL's. More realistically, over $2000 (bigger Mackies and JBLPro). Then, you have to convert to XLR.
Cheaper to pick up some old Advents, or whatever, and a used receiver in a yard sale or your local craplist.
Cheaper to pick up some old Advents, or whatever, and a used receiver in a yard sale or your local craplist.