Thanks very much guys-great info. The mic pres I use (up to this point) are the Mackie vz3. They sound good to me. I tried the Octacapture after I posted. The signal is much hotter (visually) wave form and peak flags, etc. without being louder.
The difference I hear with my old ears seems like:
The Roland MP's have more, well, body is the best term I can think of. The orig (mackievlz3's) sound tinnier (thinner). You guys are sure right , it is tough, especially for someone like me. I immediately liked the sound of the Roalnd vocal recording -same vocal track , etc) immediately but the Layla3g gives the whole mix more body whare as the roland total mix is like the mic pres test only revevesed. Sorry for the rambling.
I cannot raise the input signal anymore on the mackie pre to record vocals, so I guess the difference is headroom-Is that correct?
Tons of room on the Roland. Guess by all rights I need to do the same test with the Echo Layla3G mic pres (even though I read they are same as the mackie pres)
I really appreciate the feedback-you guys are great.
I agree with all points and will not buy a mic pre. After much experimenting I may look at mics-but I guess I have much testing to do now
regards
Stratman