I'll share what will likely be an unpopular recommendation but have you considered the new Sonos Amp? Class D. 125w. $650.
I have one driving a pair of Aerial Acoustics 6Ts. I assumed it would not be enough amp to drive them adequately but I have been pleasantly surprised.
I have one driving a pair of Aerial Acoustics 6Ts. I assumed it would not be enough amp to drive them adequately but I have been pleasantly surprised.