I preferred stock, better cleans and I wasn't looking for a more marshall sound, something tells me the purple was similar to the high gain head that never released, can't remember the name.
It is a nice punchy distortion on what used to be the clean channel. You can get your modded Marshall out of the Purple Ch. and the normal insane high gain on Ch 2.
That amp sounds great at normal volumes. It is glorious up loud. Always a favorite for people to play at some of our jam sessions when I would bring it.