I use Behringer Truth monitors B2031, and have recently added the Behringer Truth subwoofer B209A. Home studio use with two arranger keyboards (Tyros 2 and KN7000) plus the Yamaha XS7 workstation through a mixer. Works well for me. However if you playing publicly in a hall, this setup may not be suitable. Suggest Behringer as they are reasonably priced and effective.
Keith