I have found that non-OS dacs tend to have a bit better clarity, body and texture to instruments and voices. I have also found that they tend to have great transient attack as well. The downsides I heard were a slight lack of "air" to the soundstage compared to some of the better upsampling dacs and players, and a tad less detail of non-musical information. If you do not have real good power conditioning and don't want to spend a fortune, check out the Ack DAC 2.0 (battery powered). What are you using for amplification and speakers?
how good are the non os dacs?
had the epiphanous vinyl experience and realize that i would like to bring my digital closer to the vinyl qualities i.e. smoother with more natural tones but retaining good resolution. i have my eye on the non os dac by promitheusaudio.com. small company but the opinions thus far are great. could a few of you digital experts comment on how good non os really sounds? love to hear recommendations from those of you that have listened to them in comparison. thanks