If you can find it the Vincent SA-93 is the preamp that the Kavent S-33 is based off of. They look very similar. I also own the Kavent S-33 and I really enjoy it with either a solid state or tube amp. I've got it paired now with a Jolida JD-502P and really like the pairing. The S-33/SA 93 also has a gain select button which I find rather useful. If a recording is too hot I can take it down a notch with the gain adjustment feature.
