Both the Gryphon and Vitus are great integrateds with different sound profiles.
From my experience, the Diablo 300 sounds a tad more forward, especially with the vocals in comparison to the Vitus. I felt the sound got a tad harsh in the highs at higher volumes on some soundtracks. Whereas the RI-101 sounds more organic, you could say it has more relaxed natural sounding vocals with crisp highs and deep powerful bass. It does not focus attention to a specific frequency but creates an overall pleasant listening experience.
When I compared the two, my personal favorite was the Vitus. It provided a sound I have been looking for a while in regards to accuracy of instruments and dynamics. I liked the Diablo but was on the fence with some sound tracks. If you like the sound of tubes, you may like the Vitus over the Diablo. To me it just feels more organic and lifelike without sacrificing crispness and resolution.
From my experience, the Diablo 300 sounds a tad more forward, especially with the vocals in comparison to the Vitus. I felt the sound got a tad harsh in the highs at higher volumes on some soundtracks. Whereas the RI-101 sounds more organic, you could say it has more relaxed natural sounding vocals with crisp highs and deep powerful bass. It does not focus attention to a specific frequency but creates an overall pleasant listening experience.
When I compared the two, my personal favorite was the Vitus. It provided a sound I have been looking for a while in regards to accuracy of instruments and dynamics. I liked the Diablo but was on the fence with some sound tracks. If you like the sound of tubes, you may like the Vitus over the Diablo. To me it just feels more organic and lifelike without sacrificing crispness and resolution.