Looking for a tube preamp that has xlr outputs.

You might take a look into what Balanced Audio Technology (BAT) has to offer - their tube preamps and amps are designed with 'true' balanced inputs and outputs, and a used VK32SE would be in your price range.

Vincent makes nice ear. 
that guy from Minnesota? 💩💩 I forget…..AVA, audio by van alstine  good stuff  

try odyssey audio, they have a tube with xlr 

also great stuff made in USA!

@dlowman There is a standard used in balanced line applications which is AES48. If the balanced line equipment supports AES48 you'll find that the interconnect cables make little or no difference in your system and you'll also have immunity to ground loops.

Do you need a phono section? Phono cartridges are balanced sources so you have have the same cable immunity at the input of the system where it matters the most. There are tube preamps with balanced phono sections that support AES48.

I think a preowned Atma-sphere MP-3 would be just the ticket. And it's truly balanced and adheres to the AES48 standard. No opamps are used to convert between single ended and balanced.