Balanced/Differential tube preamplifier recommendation?

First post here. Hello

I have a Wyred4Sound ST-500mkII class D power amplifier. I would like a balanced/differential tube preamplifier to go with it. Ideally I would spend less than $2000 on this preamp. A remote for power and volume control is a must for me. 

I would like something that is true balanced, as my source is also true balanced

I have seen a few options, but most seem to be out of my price range, and to be an uneven match for a fairly affordable power amp like I have. Any suggestions? Thank you 🙂