These are only generalizations, but in my system I have found solid state preamps to be quieter with better dynamic capabilities than tube preamps. Tube preamps tended to be a little sweeter and more delicate on the top end, sometimes with better spatial characteristics. These are the tradeoffs as I experienced them, but they will vary from model to model and system to system -- again, these findings are generalizations to be used as guidelines only, and you should really try at least a couple models of both types in your system to get a good feel for what works best for you in your system.
My preference, for what it's worth, is to use a high quality solid state preamp(for its silence and dynamics) that does a nice job with the highs, tonality, and soundstage(many of them don't). I'd suggest trying a Pass Labs preamp, or if that's out of your price range you might also try the Marsh P2000, which sounds great and is an incredible bargain at about $1000 new(for a few hundred dollars more they also make a tubed version, which may make for a nice comparison if you have a dealer nearby). Best of luck and happy hunting.
My preference, for what it's worth, is to use a high quality solid state preamp(for its silence and dynamics) that does a nice job with the highs, tonality, and soundstage(many of them don't). I'd suggest trying a Pass Labs preamp, or if that's out of your price range you might also try the Marsh P2000, which sounds great and is an incredible bargain at about $1000 new(for a few hundred dollars more they also make a tubed version, which may make for a nice comparison if you have a dealer nearby). Best of luck and happy hunting.