A/DA preamps defined the 80' and 90' and the A/DA MP-1 Classic was released after the original MP-1 and before the MP-2.
It is basically an "evolved" version of the Original MP-1, with an extra "Brown channel" and a Noise Gate.
This picture was taken before starting Tonex V" Captures and Hotone SoundClones during tube swap and general check / cleaning. It's loaded with a TubeAmpDoctor Selected 5751 in V1 and an EVH 12ax7 in V2.
Here, in all his beauty, during profiling: clipping tubes is good ! =^.^=