Can anyone say overcompensation? At 13" tall, the Kronzilla T1610 tubes are some of the biggest single ended tubes in production and some of the most powerful -- they pound out a massive 50 watts per monoblock amplifier. Audiophilia says this of KR Audio's beasts:

The sound had the fullness and depth that is evident in the best single ended's, it also had that essential power reserve that one feels with really good solid state designs. It seemed a little naughty to be able to get the best of the single ended topology in addition to the one attribute that I admire in solid state. An embarrassment of riches.

The best of both worlds ain't cheap at $20k. More reasonably priced is the $5999 KR Audio VA340 20 watt stereo integrated amp reviewed by Superior Audio:

While I never felt it was the most dynamic amplifier that I've heard, neither did I think it lacked dynamics to any significant degree. And it certainly is among the most transparent windows I've had the pleasure to hear. For overall enjoyment of the music, it is hard to imagine it getting any better than this.

Go read Superior Audio's excellent article for all the goods on this Czech company that's taking the tube world by storm. We covered the VA340 earlier.

KR Audio Kronzilla Review [Audiophilia]
KR Audio VA340 Review [Superior Audio]
KR Audio