DAC Question: Delta-Sigma vs R2R


I have a general question, I am looking to buy my first standalone DAC, right now I have an Azur 851N, which is a streamer/DAC. As I look I continue to see discussions on Delta-Sigma vs R2R DACs.

I am in no way an audio expert nor do I have a good understanding of electronics.

In Laymen terms, Could anybody explain what is the difference between the 2 technologies?

 

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@jonwatches1 - No abuse here! 😁 But just wondering why you would think a new cheap $300 DAC would be better than a Chord Hugo, for example, which is 5 years old or so? Enjoy yer tunes! 

@larsman - really good question.  so, I probably overstated things for effect.  I am sure the 2017 Chord Hugo would still sound better than the 2022 $300 dac.  It’s an interesting question how the 2017 Chord will compare to a $300 dac in 2025, probably when I buy a new one (I have no idea what relative sound would be like - probably still the Chord for a person with the right ears and right system)

In my case, part of the answer had to do with biggest impact.  At the time, I thought moving from a $250 cartridge to a $1,000 cartridge on the turntable would have a good and lasting impact (thankfully, seems to be correct).  I was less sure about marginal impact on the DAC

If I were pure digital, I’d buy the Chord or Benchmark; For the conversation, I thought if would be fun to contribute the idea of “hey, how much does it really matter” depending on individual listening habits - there aren’t many hours of intense listening for me, and those hours are on vinyl, so I keep thing simple, and lightly invested, on the digital side

(btw, the vinyl is as much nostalgia as anything else - I am staying far, far away from that discussion, which in any event off topic for this thread)

@larsman why you would think a new cheap $300 DAC would be better than a Chord Hugo, for example, which is 5 years old or so? 

I'll bite.  I would challenge anyone to listen to a $440 SMSL M500 MkII DAC (also a headphone amp) and swear that the Chord Hugo not only sounds better but is the better DAC. 

It may be a close call, of course, because the Chord Hugo was a tremendous bit of kit in its time at what, $3,000?

 

@jonwatches1 - Thanks! And depending on the rest of the gear in the system, it may indeed be very hard to tell the difference between the DAC's. I was using a Chord DAVE + M Scaler, and it was fine, but I ended up replacing that setup with a Holo May KTE DAC, which has a lusher sound, that I prefer. 

@noske - You could very well be right, depending on the rest of the gear. Personally, I would find both of those DAC's on the dry side for my tastes, but lots of people love 'em, so that's great! 

@larsman Personally, I would find both of those DAC’s on the dry side for my tastes

This is so true. Hence, should you be able to wade through my rant above, I do suggest that it might be an option to add something in the pre-amp or amp.

Like tubes.

SS? er, no, it’d be like walking into a stainless steel bathroom to have a cold shower.

edit - no, that's not fair of me.  There are plenty SS which are warm.  In fact I often enjoy my Sansui au-555A from 1974 which was given to me by my grandchildren at the time when I retired.