If you are going to go with Pass Labs, I would definately go with their Class A amps, like the newer 30.5 vs. their Class A-A/B amps.
My experience with Pass amps is that they are great as long as you stay in class A, but once you cross over into A/B, you suffer.
I would not rule out the Pass Labs Aleph amps (which operate only in class A) as well. The Alephs are SET based solid state amps. If the power they provide will be sufficient for your needs, you may very well find them quite enjoyable.
Also, I think a Mark Levinson amp may deliver both a sound you may like and enjoy. Even an older 23.5 or a 27/27.5 (which I believe is only 50 wpc) would also be considerations - of course used.
Assuming your 50 watt KT88s is plenty for the Adagios, I think you have some good options.
Finally, my experience is not that watts are watts. Oh, if it were only so easy.
My experience with Pass amps is that they are great as long as you stay in class A, but once you cross over into A/B, you suffer.
I would not rule out the Pass Labs Aleph amps (which operate only in class A) as well. The Alephs are SET based solid state amps. If the power they provide will be sufficient for your needs, you may very well find them quite enjoyable.
Also, I think a Mark Levinson amp may deliver both a sound you may like and enjoy. Even an older 23.5 or a 27/27.5 (which I believe is only 50 wpc) would also be considerations - of course used.
Assuming your 50 watt KT88s is plenty for the Adagios, I think you have some good options.
Finally, my experience is not that watts are watts. Oh, if it were only so easy.