Looks like the budget is around $700usd given the reference to the Vincent SA31.
In that price range, options for decent new tube preamps are a little limited but in addition to the Freya suggested above, I’d add Mapletree Audio preamp. Its a two chassis design with separate power supply tube stage. If used is also an option, an older CJ PV series unit should work as well.
In that price range, options for decent new tube preamps are a little limited but in addition to the Freya suggested above, I’d add Mapletree Audio preamp. Its a two chassis design with separate power supply tube stage. If used is also an option, an older CJ PV series unit should work as well.