Unfortunately, no dynamic driver in a box type speaker is going to come close, not even a Wilson or Magico. It is Apples and Oranges. Your sound stage will be smaller and you will suffer from more room interaction. In terms or transient response you might try looking at a small horn loaded speaker like the Klipsch Heresy. On the good side they are very efficient so, if you were driving the Maggies to adequate levels you will blow the roof off with the Heresy's. They also have beautiful walnut cabinets so I am sure the wife will approve.