I just reviewed the Vitus 101 Mono amps for Stereotimes.com Give it a read. Ultraaudio.com Jeff Fritz gave the integrated version a "Worlds best" and it has replaced his Boulder amps.
I owned the Gryphon Encore and while quite good, I think the Vitus has gone much further down the road. As for the earlier post wondering about the power issue, these things are beasts. I have a huge room 33x60x13 and have the Focus Master II and they rock very hard. I have had Krell, I have the Pass 350.5 and the Karan 450. The Pass 350.5 comes closest in the bass but the 100 watts of pure class A of the Vitus is just remarkable. Hope this helps. G
I owned the Gryphon Encore and while quite good, I think the Vitus has gone much further down the road. As for the earlier post wondering about the power issue, these things are beasts. I have a huge room 33x60x13 and have the Focus Master II and they rock very hard. I have had Krell, I have the Pass 350.5 and the Karan 450. The Pass 350.5 comes closest in the bass but the 100 watts of pure class A of the Vitus is just remarkable. Hope this helps. G