Millennia are very clean and transparent.
Vintech are Neve clones.

And what about SSL X logic channel?

I've been on one of the Millennia pre's, with a rather fancy Neuman. Nice. Very nice. Added/subtracted nothing I could hear. To the point that I'm considering one of the Millennia's myself...

TG

You couldn't have picked two different preamps to compare. Both are pro pieces. The Vintech is very colored from it's transformers, ranging from subtle warming to relatively aggressive distortion depending on the input level (of the source and preamp). The Vintech is relatively airy, not really bright, but not dark in the least. The Millennia is very clean. Very big in the classical and legit fields and movie sound work. So it really depends on what you are going for, lots of flavors in the studio are good. Picking the right mic/preamp combination can make your life a lot easier come mix time. Also, something to consider is the Old School Audio http://www.oldschoo… microphone preamps. The sound is somewhere in between these two mentioned above. Faster and clearer than the Neve sound, but more colored than the Millennia (with 4 different flavors to choose from).