Spoogemonkey, I think you are wondering if you buy an older DAC, how far back can you go? I would say that unless you select a DAC that was $5000 plus new, you probably shouldn't go back more than about 5 years.
As noted, there have been massive improvements at the lower price points from about 7-8 years ago, and this improvement still continues, although improvements are slowing. Arguably, the best sub $500 DACs today, would probably compete with most of the sub $5000 DACs from 10 years ago.
Take a look at Bryston, Ressonessence, Chord, etc. The younger folks seem to really like Schiit, Brooklyn, Woo Audio, etc. I just got a deal (more than 50% off) on a Meridian Director so I thought I'd give a try. With just a few days to listen suggests it is pretty good for the price point.
spenrock
As noted, there have been massive improvements at the lower price points from about 7-8 years ago, and this improvement still continues, although improvements are slowing. Arguably, the best sub $500 DACs today, would probably compete with most of the sub $5000 DACs from 10 years ago.
Take a look at Bryston, Ressonessence, Chord, etc. The younger folks seem to really like Schiit, Brooklyn, Woo Audio, etc. I just got a deal (more than 50% off) on a Meridian Director so I thought I'd give a try. With just a few days to listen suggests it is pretty good for the price point.
spenrock