I have to disagree with some of the comments above. There are plenty of great tube amps available. Depending on the design is how they will handle bass, dynamic swings, and difficult speakers loads. The Class A tube mono blocks we build have out performed many SS power amps rated at much more WPC. Current is one determining factor. At 40wpc they will power most anything even the YG Acoustic Carmel speakers better than the 300wpc class D amps at $16K the person had driving them. So making general statements means very little unless you have the experience and knowledge in the specific area.
Happy Listening.