I heard the Vincent pho-8 in my system before I bought the Jasmine. Here is my order of preference in the 3 phono preamps I've had:
Jasimine LP2.0 mkII - keeper, very big soundstage, very true to tone with nice tube like qualities and tight bottom end
Pro-ject phono tube box II with upgraded tubes - big soundstage, good tone but noticeably loose on the bottom end
Vincent Pho-8 - smaller soundstage and dry sounding, had a ground loop problem in my system (none of the other preamps above had this problem)
Jasimine LP2.0 mkII - keeper, very big soundstage, very true to tone with nice tube like qualities and tight bottom end
Pro-ject phono tube box II with upgraded tubes - big soundstage, good tone but noticeably loose on the bottom end
Vincent Pho-8 - smaller soundstage and dry sounding, had a ground loop problem in my system (none of the other preamps above had this problem)