mansr
Objectionist
Rather than limiting ourselves to what I've personally encountered, take a look at the list at ASR: https://www.audiosciencereview.com/forum/index.php?pages/Audio_DAC_Performance_Index/I didnt realise the hobby was a potential minefield, I've never given specs more than a cursory glance.
Could you expand on what 'shoddy' items you have come across ?
Note the complete lack of correlation between price and measured performance.