First I have to tell you , I love this thread. Your efforts and dedication are unmatched in recent memory . I also think your nuts. Please take that as a compliment from someone who questions their own sanity from time to time. For the time and effort you're investing in this you could have bought any number of preamps (plug and play). I get that it's a labor of love. Also something of an obsession now. Maybe therapy too I suspect it will turn out spectacular. I hope it lives up to all your expectations sonically.