So I've been mulling over the possibility of getting a pair of new preamp channels in the $1K per channel range. My current thinking is to look at the style of pres in the neighborhood of the various API and Neve clones. This seems to fit the style of music I want to invest the most money in (folk, country, jazz, 60's style rock) and a lot of my favorite music was recorded on this style of preamp. (I know I post a lot about recording classical. I find it interesting, but I have yet to get paid for it. Might not do much of it after my daughter goes off to college.) Many of the preamps in this style are in the 500 series rack format. So that raises a lot of questions. 1. Can some of you comment on the general approach. I realize that buying a rack doesn't commit you to buying only those units, but I'd guess that it would prejudice me in that direction. Is that a bad idea? 2. Seems to be quite a few rack - power supply options out there. Can someone give advice about the options? 3. I'd love the hear comments on the individual pres in this category: API, A Designs, Purple, Buzz, BAE. 4. General comments on the strengths and weakness of API clones vs. Neve clones?