DirectStream was S’phile A+ component. It was a Dac that many Reviewers used. Of course that was 7-9 yrs ago. Sure, digital keeps advancing. But an A+ DaC is still going to hold its own considering its age. whether the Denefrips is superior is hard to know. Every system has those which naturally fits with another well and some poor. I wouldn’t throw the DirectStream out of contention.
FWIW I have a Direct Stream. It syncs in rather well while getting its signal from the Aurender H100. The Aurender is the weak spot IMO. The rest of my system is listed FWIW the DS has a very similar sound signature, very much like my Vinyl who is no sloutch