I have had both the Prima Luna and Don Sachs. Don's preamps are better in my opinion.Better soundstage,clarity,pace, etc. Right now I am using an integrated amp but if I go back to using a preamp,it will be a Sachs.
Don Sach's pre amp
I know these are custom made tube pre amps I am debating on getting one any audiogon members who have this pre amp can they give me a feed back on these /