@inna I took a quick look at The Rogue preamps' output impedance and they all seem low enough that impedance mismatches shouldn't be a problem. It looks like your idea should work, it just seems so unusual. I'm not a tech guy either, and I'm not sure how trying this would actually sound. Is there any other phono preamp that could give you more gain? I'm sure there are others on here who could give you much better ideas than I.
I used to have a Redgum integrated too, and the people there were extremely nice and helpful whenever I wrote them. They may have some sort of simple answer to your problem. Good luck.
I used to have a Redgum integrated too, and the people there were extremely nice and helpful whenever I wrote them. They may have some sort of simple answer to your problem. Good luck.