This Bel Canto e.One DAC/Pre is definitely worth a look. Bel Canto makes excellent-sounding DACs — I had their DAC3 VB in my system and its sound was near flawless to my ears. But what was even more surprising was how well it performed as a preamp. When comparing it directly with my $2400 Bryston BP-6 stereo preamp I literally couldn’t tell the difference between the two. Not sure how many other DACs could pull that off, but I’d bet not many especially in your price range. BTW, I was using a McCormack DNA 0.5 RevA (getting it back Saturday with full SMcAudio upgrades) and it was an excellent combination. Hope this helps, and best of luck.
https://www.audiogon.com/listings/lisb10dg-bel-canto-dac-preamp-da-converters