You might want to check into some Dunlavys or Vandersteens. Both are time and phase coherent and represent true bargains in high-end audio.
The Dunlavys certainly don't sound like boxes. To a perhaps slightly lesser degree, neither do the Vandersteens. Both will easily surpass anything offered by Magnepan, which impress people mainly by offering a big vertical image. They and Martin Logans aren't even in the same ballpark if you're looking for accuracy. But not all people care about that.
The Dunlavys certainly don't sound like boxes. To a perhaps slightly lesser degree, neither do the Vandersteens. Both will easily surpass anything offered by Magnepan, which impress people mainly by offering a big vertical image. They and Martin Logans aren't even in the same ballpark if you're looking for accuracy. But not all people care about that.