Liquid Midrange' - strong side of which tube amps?

I wonder if anybody can name tube amps with distinguished 'liquid' midrange. I myself can name just one – Octave Audio V 70 integrated. We listened to Steve Kuhn trio with Joe Lovano recording, and you could feel that absolutely real flow of the sound of piano. How it moves and fills the room in waves. But not all tube amps I listened to, produce this kind of sound. I specifically interested in integrateds. Thanks a lot for sharing your experience!