Interesting question - from my own listening (and there are a lot more experienced listeners in this forum), very bad MOSFET designs have similarities to very bad tube designs ("mist") and very good MOSFET designs can sound remotely similar in character to pretty good tube designs as can some other SS approaches. Understand that I am definitely a tube fan, so my response is biased by that perspective.
When combined with a tube input stage (one of the possibilities for "hybrids"), MOSFETs often sound better (to a tube enthusiast like me). As support, I would point to the LAMM M1.1, though I have heard some of the Counterpoint gear sound great in synergistic systems.
That having been said, I have spent a great deal of time lately looking for SS amplification that could make a tube fan like me content to listen... I have yet to find a completely satisfying compromise, though a recent thread gave me a number of good leads (the suggestions I've followed so far have been among the most musical SS I have heard).
Overall, I have to agree with everyone else here that, while I understand where the reputation arises, there is no clean correlation in my experience between "tube-like" and "MOSFET" so you've unfortunately just got to listen in your system.
Good luck in your search. Incidentally, I have not heard the Fusion 700, so can't comment directly. Hope my rambling somehow helps...
Jacob
When combined with a tube input stage (one of the possibilities for "hybrids"), MOSFETs often sound better (to a tube enthusiast like me). As support, I would point to the LAMM M1.1, though I have heard some of the Counterpoint gear sound great in synergistic systems.
That having been said, I have spent a great deal of time lately looking for SS amplification that could make a tube fan like me content to listen... I have yet to find a completely satisfying compromise, though a recent thread gave me a number of good leads (the suggestions I've followed so far have been among the most musical SS I have heard).
Overall, I have to agree with everyone else here that, while I understand where the reputation arises, there is no clean correlation in my experience between "tube-like" and "MOSFET" so you've unfortunately just got to listen in your system.
Good luck in your search. Incidentally, I have not heard the Fusion 700, so can't comment directly. Hope my rambling somehow helps...
Jacob