I'm not exactally a newbie to recording, but I am fairly new to Music recording. In other words my ears aren't fully qualified. What I'm wondering is what are the differences between the Mic pre's on say, a Yamaha 01v/02R and an API (Neve, Manley, etc.)pre. What should I be listening for, and how do you compare the two (multi-track mixes, single tracks, etc etc)? Thanks in advance.