I’m looking for suggestions for a tube Pre Amp


My Current System:

Benchmark USB DAC1
NAD M3 Integrated Amp
Vandersteen 2CE

For a long time I was rocking a Wavelength Brick USB Dac (which is a tube dac) as my source component, but have now moved to a Benchmark DAC1 USB. I like the idea of having a tube somewhere in my system but I don’t really think I can afford to maintain a tube amplifier. That being said, I’m considering adding in a nice tube preamp then use my NAD as a power amp only (and potentially moving away from the integrated NAD at some point).

Can anyone suggest a moderately priced Tube Preamp that would complement this system well?
128x128slappyjam
Define 'nice tube preamp'. Are you looking for an old-fashoined warm, lush, tubey sounding tube preamp, or a more modern, articulate, transparent tube sounding preamp?
Jmcgrogan2 - Excellent question. I think I'm looking more for the warm, lush and tubey kind of sound. That's what I feel like I had when I was using the Wavelength Brick tube DAC as my source.
Preferably used... I hate paying retail. But I would be willing to do new if there was a in-home trial offer of some kind.
Have you tried to use the DAC1 as preamp to drive the NAD? Adding an unnecessary component in the middle, be it tube or otherwise, may not be a good idea.