Tube Monoblocks for Revel Studis

Take a look at the Wolcotts! They make a great amp and don't have any really trouble driving speakers. They can be found used from time to time.

Those speakers are among the best I have ever heard. The Wolcott amps (monoblocks) are among the best amps made. It could be a match made in heaven, or at least AudiogoN!

I don't know of any reviews, but check out the systems here which employ these amps. They have many happy owners and are part of many big dollar systems. If you get them, I would love to hear that system!!!

I thought about tube amps for my Studios as well.
I eventually gave up, because of the cost.
And like Nrchy recommends, I figured that the Wolcotts would be my best bet. They have 220 W/ch.
Unfortunately, they run about $5K used, although there is a pair on Agon right now for $4.3K. ($10K new!)
Depending on your room, (size, shape, listening position, etc...), it may take less than that. (I have a fairly large, dampened, room and I figured it was going to take that much to really get me to realistic sound levels.)
Remember that the Studios like lots of power, since they are fairly inefficient (86db) and have an impedance of down to about 3 ohms. I definitely would not go less than 150 tube watts, and really think that you should stay at 200 W or better. (My opinion of course, based on my room.)

(FYI, I ended up keeping my trusty old Mark Levinson No. 23 amp (200W/ch.) and they sound great. I ended up spending my money on a new Ayre K-1X preamp instead.)

Good Luck in your search!