They are both good in their own regards, it just depends on what you're looking for. The one thing I hate about the Linn's is the fact that they are using Class D digital switching power supplys. If you start rocking out for an hour or so at a pretty good volume level you will notice the fans in the amps start humming. They are loud and annoying. Otherwise very good. Now the new MX-R's I haven't had a whole lot of time to listen to. However, they took me by surprise. I too personally own Sophia's but I didn't care for the LInn Klimax's in my system. I opted to get the Classe' Delta Cam400's. Those amps drive the Sophia's considerable better than the Linn's and with much more authority I might add.
