DACs that do well without a preamp


I am looking for a DAC to feed my DNA-1 gold power amp directly, streaming Qobuz or Tidal from a Bluesound Vault. Budget is $1-2K; would consider used, if worthwhile. Current contenders are Benchmark 3 HGC, Brooklyn DAC+, Gustard x26 pro, Holo Spring 3, Musetec 004 and Pontus ii. Looking for clean, detailed, uncolored sound that "lifts the veil". What are the qualities I should look for to drive an amp well, without a pre?
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A great preamp with a fixed level DAC has always performed best for me.  There is no substitute for a great preamp, it is more than just a volume control and switcher 

A really good one can transform a system into next level sound quality .   There are so many great speakers and amps not being utilized to their full performance potential because they don't have a great sounding preamp in front of them. 

@alan_a , like everything in our esoteric hobby, "your own results may vary". In my case, I connected my HD30 directly to a Coda Model 11 and fed to a pair of PSB Stratus Golds and I was very pleasantly surprised with the sonic results. Perhaps in your experience there was a poor match with the gain level of your amp? I can only attest to the sound quality that I heard. And yes, in may main listening room, I have a Lumin streamer connected to a tube preamp paired with a solid state amp. 

@laaudionut  " like everything in our esoteric hobby, "your own results may vary.""

Agree fully, I run a tube pre and tube amp so may have just been predisposed to a certain sound that completely changed when the preamp was removed.  So maybe not bad just different enough for me that I didn't like it.

The HD30 doesn't seem to get much attention but I've demoed several other dacs in attempt to better it and dollar for dollar I haven't found a better unit.

Frequently it’s just that the passive preamp sections usually included in the DACs don’t have sufficient output to fully drive the amp it’s hooked up to. As always, it comes down to proper system matching.

@soix Thanks for your reply -- I think that's as good an explanation as I'm likely to find.  The voltage level of the DAC output may be in the right range, but it can't generate enough current to properly drive the amp.  I do own a preamp (Parasound 2100), but I thought it was a weak link, so I'd be better off without it.  Sounds like I may want to keep it around for a while.

Try a Teac NT-505x. Safe & Sound sells it with a return policy. I have the older version with an AKM DAC chip and the volume control works great with the few amps(tube and solid state) I’ve tried. The new version uses a Sabre chip and is more to the sound you’re looking for. Mine is a little less detailed.