Absolute top tier DAC for standard res Redbook CD
headphonedreams - I am also in the side that thinks that all common architectures (R2R, DS, FPGA) can work when implemented with care.... Hi everyone. I’m pretty good at using google. That said, may I ask the opinions of the folks on this thread for a very brief (sentence or two) explanation as to the advantages and/or disadvantages of "FPGA" in comparison to the other two architectures. Thank you. |
I just replaced what could best be described as a “vintage” Musical Fidelity A3.5 CD player with an Oppo 85 after reading many, many positive opinions on Oppo in general. I had previously perceived Oppo as “ mass market “ stuff, and while this is a universal disc player with outstanding reviews on its blue ray capabilities, it was lauded for its cd audio. And deservedly so. The Oppo made virtually all of my redbook discs remarkably better in every respect. The only discs it didn’t improve sonically were those that were badly recorded - which no player can manage. Unfair though my comparison may be - the MF A3.5 is significantly older - the Oppo absolutely was an immediate improvement. And for $500 used. One of the best dollar/value additions to my stuff in recent times. Woohoo. Modwright KWI-200 Integrated Marantz TT-15 Turntable Sony HapZ1ES Maggie 1.7i and Vandersteen 3A Signature (Still trying to decide between these - tough!) |
@georgehifi Funny you mentioned these two, we had exactly this shoot out for a whole day on a reviewers system at his place in the beautiful Blue Mtns on his Wilson Alexia MkII, Gryphon Antillion Evo Signature my passive pre. We also went direct, with the same results.We had 5 techs, 3 non techs at our meeting and were all insistent on perfect level matching. Did you really only use a passive preamp or direct to DAC for this DAC comparison? This would give the Total DAC a big advantage, as its output is 6.4 Vrms max, compared to the Briscasti's 2 Vrms. |
Next to the Total Dac, this was another jaw dropping moment that really impressed when converting pcm Redbook either 16/44 or 24/96. http://www.aquahifi.com/la_scala.html Cheers George |
welcome back buddy. Glad that it was a great trip. Elizebeth, I too have heard that marantz. I think most equate it with their mass market stuff. Most have not heard their reference gear which is very nice sounding. I like warm and not 'hot' gear. I don't put your DAC into either category. I think it's a fairly neutral sound with a bit of dynamics. If anything, the soundstage was a bit more intimate than say the Empirical ODSE/SE that I owned. Steve's gear threw huge stages. The Marantz seemed to me to be a nice piece. |
Sorry for the delay. I just came home from a week long trip to London and Paris. Great family time. Loved it all. Looking forward to getting some solid listening time in this week though. Yes, I missed my stereo.... I went to one store in London but it turned out to be a tech store more then Audio. Apparently, Diavalet have crossed over to mainstream mass market audio.... I won’t have much to report for a day or three, so let’s run off topic for a bit and hear about trips you guys have recently taken to audio related locations. Shows, intentional trips to audition gear, concerts, anything that involves music, gear and traveling. Should be a fun diversion. |
Everyone who reads these threads is generally 'grown up'. That is they think, and can decide for themselves what they are interested in, and I bet we can all agree no one reading this stuff is so mesmerized and gullible that we have to collectively worry about the need to 'save' them. SO if some guy (and his buddies) spends hours reposting the same drivel praising his particular stuff I think everyone can see through the smoke and realize what it is all about. I have faith in the average audiophile. And to mention.. I LOL at a posted comment about Marantz being 'dark'. Now no one mentioned Marantz in this thread until I did about the Marantz SA-10. So the sort of attempt to 'diss' Marnatz was a particularly odd thing. And actually made it pretty clear there was a lot of posturing going on, trying to make the thread a child thread for R2R ladder dacs. The fact it is a couple of guys does not impress. I remember KAB 'fanboys, a flock of them always praising KAB and Technics anytime a post about 'What turntable' came along. Same thing. Obvious. No one cares. No one is that gullible. |
Matt said...”This is NOT a thread on R2R vs PCM technolog. Nor is it a thread on why R2R is the ONLY design that should be used, George.” George. This is the OP’s thread..not yours. Show some respect and move on from your tiresome lambasting of everything that does not fall within your narrow minded nomenclature of all things R2R. Start your own thread and have at it there... |
Then it's about "best for PCM RedBook" as you stated. And of course the talk will come down to technology. George, respectfully, knock it off. Everyone reading this thread is familiar with your R2R dogma. I have personally had great results with D/S, but if I designed an R2R from scratch, it might be equally good. Steve, your ethernet DAC only accepts PCM. How do you recommend converting DSD? |
I am also in the side that thinks that all common architectures (R2R, DS, FPGA) can work when implemented with care. Speaking of FPGA, have you read or listened to PS Audio and how they implemented the DirectStream Dac? I think the technical descriptions are interesting and much more detailed than most other companies. I haven't heard the dac but of anyone has any compared it to other dacs mentioned in this thread I would like to hear what you think. |
This is NOT a thread on R2R vs PCM technolog. " Absolute top tier DAC for standard res Redbook CD" Sorry but you being the OP headed this. That's why it went down that path again after you gave such a good report of the R2R Multibit "Mojo Mystique V3" with comments like this. SO, if you are looking for a single ended DAC you’d be a fool to not listen to the sub $6K single ended Mystique V3!Then it's about "best for PCM RedBook" as you stated. And of course the talk will come down to technology. I hope you do some more Matt from the list below, as it will broaden your horizons on what constitutes an great pcm RedBook dac. As I posted there are many discrete R2R ones now being made (below) as R2R chip converters are unobtainable except for the military missile guidance one that Shiit uses, hopefully they do come back as manufacturing techniques improve to laser trim all those microscopic resistors to a minuscule % .0000001% or less without the massive costs of doing it. There is a large market for them to come back to, if Delta Sigma can't in the future get the sound from PCM that these R2R's can, but I do admit the 6bit hybrid DS's are getting closer, maybe they just need to go the full wack to 24bit with no DS who knows. Just keep DS for DSD/SACD conversion. Up to $3k: Border Patrol, Monarchy, Denafrips, Audio-gd, MHDT, Holo, Soeskris, Metrum, Schiit
Cheers George |
Wow guys, gone for a week and right back to PCM vs R2R again. George must be here, lol. This is NOT a thread on R2R vs PCM technolog. Nor is it a thread on why R2R is the ONLY design that should be used, George. I don’t believe in absolutes. As I have said, I’ve heard a LOT of dacs that sound great. I have some great stuff coming. Stay tuned. Im home this evening. 👍🏻 |
Yep, Different groups of listeners, ears,systems etc. Contrasting opinions are nothing new within the niche of High End audio. I don’t question either group of listener’s conclusions. All of us just report honestly what we hear. Both DACs have happy and loyal owners. Certainly experienced audiophiles and music lovers comprised both groups. Charles |
We had 5 techs, 3 non techs at our meeting and were all insistent on perfect level matching. All levels were matched overhaul not by spl by ear or meter but by the voltage down to the mV fed into the speakers at differing sine waves with a tech cd to get the levels absolutely identical to the mV And the Total Dac 7 with larger optional off board power supply, was by far the better, with PCM Redbook replay. Cheers George |
George, The system I heard these 2 DACs directly compared consisted of the Absolare Passion Signature preamplifier Krell FPB 600 mono blocks Rockport Altair speakers Velodyne subwoofers x 2. Obviously we both heard the two DACs in very fine audio systems What’s interesting is that the sonic attributes you heard that favored the TotalDac over the Bricasti M1 SE is the opposite of our findings. The Bricasti was noticeably more dynamic,energetic and alive sounding. In direct comparison the TotalDac was smooth but polite and subdued (relatively speaking). The Bricasti had the better musical flow and pace which was very engaging. I have to say it was also at the same time more organic/natural. Overall clearly the better sounding DAC. Both were use via ethernet and attention was paid to matching levels. In absolute terms the TotalDac was quite good but the Bricasti was the superior sounding DAC head to head. Charles |
audioengr - ....By live, I mean when I play a live track, say a jazz performance in a restaurant, can I close my eyes and believe that I’m actually sitting in the restaurant? Can I turn my back on the speakers and believe that there is a live performance behind me? Does a good piano track sound like my Yamaha Grand Piano in the other room?Hi Steve. I get what you're meaning now by live. To my understanding the audiophile term for what you've described is "suspended disbelief". True? I'd have to think the DAC design (DS or R2R) may not be the dominate factor in achieving what you describe. Big factor though, certainly. I would think the room, the speakers and the recording itself would be more prevalent. So when you state that the DS was better - at least with your designs - I would have to think your designs evolved over many years, and in that case the other variables I mentioned (room, speakers and so forth) may not have remained constant. In any case, I appreciate your clarification. Thanks. |
This shows that in this system, one DAC beat the other. Did they even use the same interface? Was it USB or S/PDIF? All of this matters. Even 2 different USB interfaces will perform differently. It does not prove that Delta-Sigma is inferior to R2R. The devil is in the details, the implementation and design details, not the D/A technology IME. Steve N. Empirical Audio |
shadorne - Even harmonic distortion is pleasing. It is higher order odd harmonics above 7th which are not pleasing and harsh sounding....Hi shadorne. Thank you. Not all that long ago, Ralph (atmasphere) provided a wealth of information regarding harmonic distortion in this thread https://forum.audiogon.com/discussions/full-detailed-sound-at-30-40-50-db (probably other threads to :) ) Your response is very much in line with what I’ve previously understood in this regard. In fact I understand there is "weighting" of distortion also at play. Noting that manufacturers typically provide "total harmonic distortion" and in some cases "intermodulation distortion", I had asked in that thread if manufacturer specifications could provide insight as to where the harmonic distortion is occurring. His response led me to believe "this can be tricky". Point is one may not readily be able to determine where the distortion is occurring, and may only be able to rely on subjective listening. Your explanation certainly does make sense. Would you say then that the *implementation* is the dominant factor of listener preference between DS or R2R, or is the *distortion* now the dominant factor (again, in your opinion)? Thanks. |
TotalDac (bit perfect) outperformed by the delta sigma Bricasti SE in a friend’s system I listened to extensively. .Funny you mentioned these two, we had exactly this shoot out for a whole day on a reviewers system at his place in the beautiful Blue Mtns on his Wilson Alexia MkII, Gryphon Antillion Evo Signature my passive pre. We also went direct, with the same results. The Total dac was far better than the Bricasti in every area, even the owner of the Bricasti SE conceded, and is going to sell it to go to R2R. Don’t get me wrong the Bricasti was lovely and sweet and smooth, but not exciting when compared, it had no jump factor like the Total, that snapped your head back in disbelief with some of the dynamics, and yet it still stayed sweet and smooth when needed. You could hear deeper into the music because of this expanse from quiet to loud. And it gave all this to you not from the speaker but all around it with an image and depth that washed over you instead of directed from the each of the drivers of the speakers, as if the speakers weren't there in the room. Cheers George |
Not meaning or wanting to play on words here, but for clarification purposes, by "live" do you mean "authentic"? By live, I mean when I play a live track, say a jazz performance in a restaurant, can I close my eyes and believe that I’m actually sitting in the restaurant? Can I turn my back on the speakers and believe that there is a live performance behind me? Does a good piano track sound like my Yamaha Grand Piano in the other room? Steve N. |
@gdhal Even harmonic distortion is pleasing. It is higher order odd harmonics above 7th which are not pleasing and harsh sounding. It looks like the R-2R DAC has equal amounts of even and odd harmonic distortion. The 2nd harmonic being the most important. Above 7th odd harmonics is where it becomes disagreeable to the ear. If the audio is filtered at higher frequencies (most older NOS designs have gentle roll off from analog output filters) then the lower harmonics will dominate and it could sound subjectively excellent. This might be the key reason R-2R sound could be preferred for the same reason tubes are highly regarded for their wonderful sound... A complete lack of harmonic distortion is about as dry and clean sounding as it gets - the latest ESS DS chip has extremely low 2nd and 3rd harmonic distortion (-130dB in the mid range) which is exactly where you get most of the harmonious pleasing warmth in tubes. |
George frequently to support his point says R2R is "bit perfect" whereas delta sigma is merely a "facsimile". As a listener I don’t hear R2R superiority. As a builder/designer is this claim true and if so is it an audible or meaningful distinction in your experience? I have compared D/S to R2R with my own DAC designs. The D/S is better, however my R2R was using older chip-based technology. Some of the new clever design tricks with R2R overcome some of the limitations of older chip-based technology. The accuracy of each level is still an issue however, so this causes its own distortion. When you compare these two technologies, you are comparing two different deficiencies. The question is: given both designs are excellent, which one sounds more live to you? I have personally had great results with D/S, but if I designed an R2R from scratch, it might be equally good. Steve N. Empirical Audio |
shadorne - Here is a thesis paper explaining why R-2R DACs have lots of harmonic distortion. Looks like the distortion is consistent across all harmonics..... Hi shadorne. I have no disagreement in what you are stating in your previous post. I would just like to submit as food-for-thought that Jimi Hendrix used fuzz distortion. Not quite the same as the distortion you are speaking of, nevertheless, worth mentioning, IMO. EDIT: ....that would be *intentionally* used.... |
Here is a thesis paper explaining why R-2R DACs have lots of harmonic distortion. Looks like the distortion is consistent across all harmonics. https//pdfs.semanticscholar.org/9a52/fcba6dd87371974b3c146dbb5a3a00ffee74.pdf These students were sponsored by NAIM to investigate ways to reduce this non-linearity harmonic distortion that is inherent to R-2R designs. The 2nd harmonic will give this kind of DAC a richer sound. The higher odd harmonics will tend give an R-2R a slightly harsh edgy sound in the treble. My guess is that R-2R DAC manufacturers will use filtering to roll off the highs in order to reduce the odd harmonic harshness in the upper treble. Subjectively this might be preferable to a higher performance DS DAC. |
Yes I’m familiar with MSB and have heard a few of their DACs. No doubt that they are fully committed to discrete resistor ladder R2R . I understand the supposed merits of this approach. I used to own a Metrum Octave DAC a few years ago and brought it primarily due to its R2R approach and universal rave reviews. It was in fact a good sounding DAC but preferred the Yamamoto DAC (DS) in my system. I heard the Holo Audio Spring level 3 DAC (discrete ladder design) in my system. Very good but again I found the Yamamoto YDA better sounding. The Metrum and Holo Audio are representative of "bit perfect" given their architecture. TotalDac (bit perfect) outperformed by the delta sigma Bricasti SE in a friend’s system I listened to extensively. . George it could be as simple as we heard differently. I’ve listened to a number of R2R DACs and they ranged from good to exceptionally good but did not exceed the sound quality of comparable delta sigma DACs. We both have our respective listening experiences and subsequent outcomes. At the end of the day we judge and formulate opinions based on what we have heard. Charles |
Perhaps it is the harmonic distortion from an R-2R DAC that listeners like - kind of like tubes - measures poorly but sounds subjectively better... With two types of resistor perhaps the distortion is more in the even harmonics. All I can say is that for sure the harmonic distortion is way higher on R-2R than DS DACs due to the non-linearities introduced by the finite accuracy of the ladder resistors. If true, then even low cost R-2R might sound great because higher cost R-2R will likely have less harmonic distortion... |
I don’t hear this purported advantageous asset with comparisons as stated earlier. That fine if you can't, but I do with CD's 16/44 or the magic sounding Reference Recordings 24/96 CD's that have HDCD encoded which my Linn CD12 thankfully can do with the PMD200 chip. The best which I've yet to hear from what I've been told is DXD. I've heard the defunct DVD-A which was very good, better than the Reference Recordings above it's a pity it didn't take off. This is a good read from MSB Technologies, they use R2R Ladder in their top line dacs. (big bucks) http://www.msbtechnology.com/faq/why-ladder-dacs/ Cheers George |
To be very clear I’m not disputing the notion of multibit being bit perfect but rather how is it manifested as a demonstrably superior quality above and beyond DS capabilities. I don’t hear this purported advantageous asset with comparisons as stated earlier. If I'm not mistaken , bit perfect applies to discrete R2R and multibit R2R chips. |
Steve N who by all accounts has been successful manufacturing R2R and DS DACs and is a credentialed sourceYes Charles but as I said not discrete R2R. he has to use either DS or the Hybrid. Or he could purchase "discrete" R2R made boards from Sokeris Audio Engineering but he’ll loose his dsd capability, which means nothing to me, as it was pcm before it became that. Here as of 2017 (more now) are the companies now doing expensive to produce "discrete" R2R ladder dacs for PCM (Redbook) replay. Schiit uses a R2R chip (not for audio) but for missile guidance as there are none now available for audio use, because DS was so much cheaper to make. Up to $3k: Border Patrol, Monarchy, Denafrips, Audio-gd, MHDT, Holo, Soeskris, Metrum, Schiit $5-$15K: Audio Note, MSB, Metrum, Computer Audio Design, Aqua, LessLoss, Totaldac, Lampizator $15K+: CH Precision, Aries Cerat, Light Harmonic, Audio Note, MSB, Totaldac, Lampizator **Special mention to MSB, Monarchy and Audio Note, who never gave up R2R. Even after the takeover of delta-sigma. Cheers George |
George, Precisely why I addressed my inquiry to Steve N who by all accounts has been successful manufacturing R2R and DS DACs and is a credentialed source. There are unquestionably other builders capable of using either circuit type in DACs. Since he is a knowledgeable contributor to this thread I was interested in his opinion of multibit/R2R "bit perfect " practical or real world audible attributes. . Charles |
@gdhal @sadono Yes and yes. When properly processed, 24 bit masters have greater tone, harmonics, and lower distortion than Redbook CD. Far more analog like. |
I realize that there are manufacturers who share this view but certainly not all do. Maybe it’s because the ones that don’t Charles, can’t make "discrete R2R dac’s" as the complexity is many many times higher, and they also can’t get R2R dac chips ready made any more. So they don’t have an option but to go to DS or DS hybrid, as these chips are available (and cheap) . BTW: You don’t see anyone going to the trouble of doing a discrete DS or DS/hybrid do you? Why is that? Cheers George |
Gdhal, I cited George as he has repeated this often on this particular thread/site. I realize that there are manufacturers who share this view but certainly not all do. Given that Empirical Audio has produced both I was interested in their opinion regarding the multi bit/R2R "bit perfect" claim. More importantly how relevant is it ultimately to actual sound quality. Charles |
@sadono You write with wisdom like a child, directly to the heart. I trust you will interpret my questions as genuine. Simple yes/no questions if I may... no need to elaborate beyond yes/no but by all means do so if so inclined... - does this 16 vs 24 bit "difference" effect your enjoyment of listening to music? - are you able to discern a difference between 16/24 in a blind test (assuming you’ve tried)? Thanks. |
@fuzzbutt17 Benjamin, I just skimmed through your article, "The 24-Bit Delusion" and I see we will not agree. You article is full of untrue claims, IMO. 24 bits are not just about dynamic range. Higher bitrates properly used in recording are for greater headroom, to avoid digital clipping, or unneeded processing. Higher bitrates also provide for greater S/N levels, lower digital distortion, reduction of noise from processing, and eliminating unneeded processing. "In contrast, some of my favorite digital recordings were digitally mastered from 1950s analog recordings. Many of these recordings were done as a group of musicians playing in a room with one take per track and a minimum of post-production editing. Though these recordings have a much higher background noise being limited by old-school pre-Dolby 60dB dynamic range master tapes, they retain an organic character that can't be duplicated any other way. When you hear the organic character and coherent in-the-room harmonics, it is clear why so many audiophiles prize these recordings." You conclusion is incorrect. Your preference has nothing to do with dynamic range, but with the use of tube mics & gear, RtR analog recordings, as well as the recording style. Digital masters can retain many elements of analog recordings, and higher bitrates are much more capable. Remove the filtering from your DAC, and see how you like 16 vs 24 bits. |
@fuzzbutt17 Victims of marketing. This is a faulty test, IMO, as most people do not have experience with 24 bit music that is dithered down and converted to Redbook CD. If you do not know what to listen for, this is a difficult test. There would likely be many more correct answers if you played each song at 16/44.1, and then a 24 bit version, in random order. If you disagree, please feel free to hold this contest at your next show. I agree that current technology does a great job with Redbook CDs. However, there is no replacement for 24bit masters, IMHO. |
charles1dad - Hello Steve N, George frequently to support his point says R2R is "bit perfect" whereas delta sigma is merely a "facsimile". As a listener I don’t hear R2R superiority. As a builder/designer is this claim true and if so is it an audible or meaningful distinction in your experience?@charles1dad With do respect, I would just like to point out that not only does George make the claim as stated in your quote, but so too do many DAC manufacturers. |
This is exactly the chip I used in my Spoiler TubeDAC. Sounded really lifelike, but the Overdrive SE and SX using D-S left it in the dust for weight, detail and dynamics. Steve N. |
Honestly he lost me again when he said something about Schitt beimg an expensive discrete.....:::: BTW ct, Have to correct you here as well, I didn’t say that read again. Expensive was in reference to "discrete" R2R dacs And "chip" versions which if you know are cheaper, which Schiit Yaggy uses, and the best bang for buck you can get, for converting PCM Redbook. Cheers George |
Thanks for the info George. I'll still let my ears make the choice for me like most do. Both can sound great and that's all that matters. There is no one is better than the other right now. Good DAC's on both sides of the isle as has been pointed out by Matt and many others of us who have or still do own both types. |
Look at Steve and others who can and will use any tech if they feel it can be done right. He can't go 24bit multibit converters as there are none made for him to buy, so he has to go DS or get the newer hybrids as shadorne bought up. He uses Analog Devices Delta Sigma chips and one of his quote was "we can select the digital filter with this chip, we can essentially make this Delta-Sigma sound a lot like a NOS R2R DAC" "Because we can select the digital filter with this chip, we can essentially make this Delta-Sigma sound a lot like a NOS R2R DAC, but also supporting hi-res files" Cheers George |
especially the hybrid designs that have 6 bits in depth. That's right, the last great full 24bit R2R chip was the PCM1704 and is unobtainable now because of massive manufacturing costs, having to laser trim those resistors. The competition to them is now coming from these newer hybrid dacs with 6 or so bits, a lot of the top end guys are using them, maybe one day they'll be able to make full 24bit again like the PCM1704 as cheap as the the DS from ESS and others, and we'll get back to proper conversion of PCM again, instead of a facsimile of it with DS. Cheers George |
