The Rogue Zeus is just awesome on those speakers. Great sense of Majesty and Power. Not quite as good in the midrange microdynamics as the Hurricanes or Monsoons but close. On the other hand, the Hurricane's have nowhere near the power capabilities of the Zeus.
The Rogue M-150 (new model) also does very well with the VR4, I heard plenty of power with that amp too. But my favorite of the high-powered push-pull tubed amps is the Zeus. On huge Chineese skin drum, the Zeus and VR4 combo shiver the room and yet reproduces the overtones of the drum's skin effortlessly. The Zeus is a bit on the rich side of neutral; it is not trying to emulate a Audio Research sound. It is much closer to neutral, in my mind, than a Cary V12 though and vastly more powerful and controlled in bass. It seems to me to be just enough on the rich side for enjoyment, but not so much that you will ever tire of it.
The Rogue M-150 (new model) also does very well with the VR4, I heard plenty of power with that amp too. But my favorite of the high-powered push-pull tubed amps is the Zeus. On huge Chineese skin drum, the Zeus and VR4 combo shiver the room and yet reproduces the overtones of the drum's skin effortlessly. The Zeus is a bit on the rich side of neutral; it is not trying to emulate a Audio Research sound. It is much closer to neutral, in my mind, than a Cary V12 though and vastly more powerful and controlled in bass. It seems to me to be just enough on the rich side for enjoyment, but not so much that you will ever tire of it.