Well, can't really go wrong with any of those, except in my opinion there is no compelling reason to get the 103 -- cost you around $5K versus the 102 which is essentially the same amp sonically.
A pair of 102s will rock your world, no doubt. The 250 I think will sound somewhat reluctant on top, a little slow, ponderous in the bass perhaps -- but only compared to the pair of 102s -- the 250 is a very fine amp indeed, but if you were transitioning from the 102s, you might well think you had lost something.
You know, I might compare the 102s to the Bryston -- that kind of pep and superficial stimulation, but with real naturalness, timbral accuracy and involvement. Presence factor high. Oh, by the way, would not go the direction of the Plinius 300 -- did everything fairly right except you lost the performers -- they left the room -- put the 102s back, and they're there again -- the difference was instantaneously realized, only spent about very limited time with the 300 -- whatever else it offered, wasn't worth that sacrifice....
A pair of 102s will rock your world, no doubt. The 250 I think will sound somewhat reluctant on top, a little slow, ponderous in the bass perhaps -- but only compared to the pair of 102s -- the 250 is a very fine amp indeed, but if you were transitioning from the 102s, you might well think you had lost something.
You know, I might compare the 102s to the Bryston -- that kind of pep and superficial stimulation, but with real naturalness, timbral accuracy and involvement. Presence factor high. Oh, by the way, would not go the direction of the Plinius 300 -- did everything fairly right except you lost the performers -- they left the room -- put the 102s back, and they're there again -- the difference was instantaneously realized, only spent about very limited time with the 300 -- whatever else it offered, wasn't worth that sacrifice....