Desktop DAC-amps are a very lively market segment, and there should be no shortage of good candidates in this price range. Do you need anything in particular, like balanced line or headphone outputs? Both output and noise level tend to be at a good level in most of them, though you're not going to see anything quite at the level of a good dedicated amp like Topping L30... I wouldn't hope for more than about 6 Vrms and change maximum. That's usually fine.