Actually there are several dacs you can try at that price range. The Lite 60 is a good one to try if you are handy with a solder or want a slight tube sound in your system. Dack Ack! 2.0 is also a good nos dac to try out. X dac needs more component such as the tube buffer and dedicated ps to sound its best. A used MF A324 is also a good choice to try, along with Bel Canto 2. If you really only want the two dac mentioned above then I would go for the stello for its features, build quality, and components used inside.
Oh I almost forgot, VDA2 is also a good dac to try out. All these dac you can find on audiogon if you are patient for a good price.