211 tube amp fr AudioNote speakers

[var1681]

I am seeking suggestions from esteemed members who are into tubes fr 211 tube based .. Audionote Note AN /J LX speakers (91db) ..I am biased towards Single ended and Audionote amps are very costly.please suggest any tube amp or tube amp builder who can make 211 amp.One japenese Guy Ken Usegui/ Otomon kab is in my mind Any one who knows about this guy or suggest an other good amp builder..Thks