Duet/MacBook and recording gurus of all types...hep! I have a tube preamp that I like when used straight into a recorder but have not placed it between the mic and Apogee Duet which is a preamp in itself. I know you will say "try it and and if it sounds good go for it" but is the Apogee Duet ok on it's own or will I gain from adding a tube preamp before it? I also have a tube compressor I have thought of adding in that chain although my recording program has a compressor plugin also. It seems the Duet is 'chrystal clean' as a preamp and a little too transparent(?) if that can be imagined? Anyone else using a seperate mic preamp BEFORE the Duet in their chain?