I would think the V80 will drive them. My friend has a V80 driving Dynaudio C4 Sig's (86db). Sounds great. Another option is the V110 if power is your concern. The V80 puts out 75W and the V110 will put out either 70W or 110W (switch selectable)(caution not to use any other tube except for the Ei KT90 in 110W mode). To get 110W from the V110 you have to use the KT120 tube. Andreas is testing the KT150 in the V110. With either the V80 or the V110 I would highly recommend a super black box for your speakers. Besides a bit more headroom it really lowers the noise floor. My friend with the V80 has just a black box and I have heard the super black box on his V80 when he the Dyn Sapphires. It was a big difference for the better. With a multi driver speaker a super black box will make a much bigger difference than the black box with monitors.
All that being said I have no experience with any of your speakers. Just hoping the Dyn Sapphires and C4's would be somewhat similar.