If you can live with 6"(wide) x9"(tall) x7 1/2" (deep) the NHT M-00 powered monitors are a steal at $400/pair. You won't need an amp. The matching 10" powered sub is also app. $400 - I think. This system was designed for nearfield monitoring but later sold for use with PC audio. Add a source with variable output and you're in business with a high quality, extended bandwidth system at <$1K.
Good Luck
Marty
Good Luck
Marty