I've been auditioning a new Eastern Electric MiniMax tube preamp for a week, comparing it with my Korneff transformer-coupled linestage, and have been very impressed, it costs less than $1200. And, I think it probably has everything you're looking for based on your complaint about Carver C-2, assuming that you can live with its three line inputs and two sets of output. I previously owned a much upgraded Cary SLP-94P, and this little wonder betters it. It also responds very well to different tubes and power cords I've tried. I have no affiliation with the very kind and helpful US importer, but I feel this little preamp deserves your attention.
tc