I've heard all 3 but in different rooms with different gear so take my word with a grain of salt. The F12 was probably the most neutral of the 3 with good mids and substantial low bass but is by far the ugliest. The Studio 60 v.5 has great dynamics and a decent mid but the highs were a little harsh for me. The Imagines have great great mids with a tad bit of warmth in there which I personally like and are IMO, the best looking of the bunch.
Although like others have said, I might look into monitors for your room in that range. In that price range, PSB Synchrony 1/2 B or Revel M22's might be a better choice.
Although like others have said, I might look into monitors for your room in that range. In that price range, PSB Synchrony 1/2 B or Revel M22's might be a better choice.