Hi Paul,
My best take on it is that the Vitus electronics add a naturalness to the sound of the Magicos without a loss of resolution associated with many of the current top SS brands. I would say maybe in-between neutral and warm. The reproduced soundstage is dimensional and holographic, "almost" tube like dimensionality, but then there are unlimited dynamics that don't usually accompany tubes, especially on the Magicos, which sound great with tubes but do respond to power when it is provided.
With the Vitus/Magico combination the bass is world class. The texture of bass lines even when several bass instruments are playing is uncanny.....riveting, but natural. I think that the magic of the bass with this combination has a lot to do with the overall "just right" feeling that is derived from the overall sonic presentation. Seems like when you get the bass so clean, clear and textured that overall timbre soundstaging, dimensionality, space between instruments really falls into place.
Authoritative wall of sound, with a natural midrange, dimensionality, space between instruments, world class bass etc is what I hear with the combination.
That's the best description that I can provide, hope it is helpful.