how good are the non os dacs?

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?

I recently went to a Non OS DAC and have had a few epiphanies with it. I would say yes it does remind me much of what I like about vinyl best. I don't know if I can completely give the credit the fact that it doesn't oversample but I was guessing this might be part of it.

I disagree with Bigshutterbug, on OS players exhibiting more air. NOS players can as well, if they are made right. My NOS DAC excels in hf detail, including spatial clues. It's delivery is far more natural than any OS player auditioned here. OS players always sound forced.

so, thus far you guys are very happy with the non os dacs. that is a good recommendation towards that direction. can anybody check out the promitheus website and tell me if technically this dac looks sound. saving 500.00 vs the audio note sounds good to my wife and the checking account. thanks.

"Addition By Subtraction"; this is the best description about NOS DACs I can provide.

It is due to the fact that NOS DACs 20KHz sine wave looks like a ladder. This means that the top extension is smeared, resulting in lusher presentation. So many audiophile like this, so it is not necessarily a bad thing.

I'd vote for OS though. :-)

Regards,
Alex