Rack mount preamps for cheap

So I have about had it up to there with my Carver Ct-26v A great preamp but only when it decides to work. I'm looking for something under $500 used or new that sounds like the Carver (giant bass and sounds ok at lower volume levels) and it needs to actually be rack mountable, not just look like it's rackmountable (ala the carver). A 1 rack space unit would be ideal. Currently it's mated to my home studio system which has a Peavey 400CS (don't laugh, it sounds good) and some Alesis Monitor 2's I don't really need a phono section at the moment, but the upgrade path would be nice.