best amp for PMC MB1 speakers?

Hello you out there. I need your advice, because I cannot decide if I should get a Plinius SA250 or a Bryston 14 B SST amp to drive my large PMC MB1 speakers. They are very revealing, and need lots of power. I use a Sony XA7ES as source, but plan to upgrade next year sometime to something with 24/192. My Plinius 8200 mk 2 sounds great, but only to a certain volume, but the speakers could go much further.
Many thanks for your input.