I wasn't trying to suggest that you buy a tube preamp just to use with this mic; I just thought you ougt to try one if you had it available. There are a lot of "tube" preamps (i.e. preamps with a tube in them somewhere) that are no better, and probably a little worse, than solid state ones you can get for the same money. A good tube pre-amp (all-tube circuit, tubes run at full plate voltage) will cost quite a bit. Preamps like
the Groove Tubes Vipre, or similar offerings from D.W. Fearn, Manley, etc. will run you between $1500 and $2500+ per channel.
The bottom line is, just using the built-in preamp on a low or mid priced mixing board probably won't bring out the best in the mic, so use the best preamp you have available. If you don't have any 'good' preamps, the FMR "Really Nice Preamp" is a good place to start. If you've got a bit more of a budget,
the Great River ME1NV is a world class preamp for around $1000. If you're serious about recording and audio engineering, don't make the mistake of buying something that you think is "good enough" because that's all the money you have. Incremental upgrades of gear often turn into 'side-grades' (i.e. different, but not better) - save up and buy something that is 2 steps above what you have. You'll grow into it, and get a lot more use out of it in the long run.
Just some random thoughts, not sure if they apply to your situation, but take them for what they're worth.
Scott