Hello,
I have a TAD 150 Signature. Please google Angelfire or bizzy bee - TAD 150; check reviews. Only 300 or so were produced by Paul G. It's a very nice tube pre for the money. The line state is very nice. The phono stage is just OK but since I don't do records it's no big deal.
I've had Counterpoint and Audible Illusions tube preamps and think the TAD offers the best overall sound. I'm getting the upgrade bug again so if you have any interest I may sell mine soon.
Best regards,
Paul