Okay. So far so good. But, here are the specs for a Lynx2: Product Information
I have compared a Lynx2 and a DAC-1 and they sure sound different to me. Don't know about the ODAC, but would be interested to try it.
Yes. And though using actual measured Z of the speakers being used is another closer step .... the speaker Z has little connection (other than resonance freq) to the speakers acoustic output (FR). It is only the acoustic response that is important in the cross-over design. The better SIM would take in the passive components variation (L change a lot vs freq)) as well as speaker Z and frequency/phase response of the drivers.
THx-RNMarsh
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There never can be too little switching artifacts in an audio circuit. The A/D conversion process is fraught with unending baggage of SH cap dielectric absorption, switching time speed and bounce, clock jitter. It goes on and on. Then there is the dac. Then the gymnastics to interface with the analog world.... The Rube Goldberg comic strip of audio.
ODAC is cheap enough to just get for many. At least with ODAC and all benchmark product fairly complete measurements are available to compare and decide if a reduction of a bit of fluff 130dB down would enhance listening please.
Again, I don't think many audio professionals in the music industry buy DACs primarily based on specs. For most people and most purposes, any differences between a ODAC and DAC-2 may be completely negligible. But some people are not using always DACs for listening pleasure. For some it is work, and hard work at that. At times there may be a need to ignore the music and focus attention on distortion, HF smear, and other artifacts that are subtle, but that you know the mastering engineer and a few other people are likely to hear. If someone has never tried to mix a record to a professional level of quality, it may be hard to understand just how hard it is, how much focused effort and attention it takes, and how little subtle decisions can affect the finished product. When trying to do that type of thing to very best of one's ability, the differences between a DAC-2 and an ODAC may be very apparent.
And all these horrors somehow become invisible when you measure these units. It's like magic.
Both.
I did not import filters, the chip has options for different filter slopes. Those can be changed if you want. Loading your own would be interesting, for sure. Now I understand why you were talking about rePhase.
Here is one explanation for some of that: https://benchmarkmedia.com/blogs/ap...pll-in-your-d-a-can-taint-a-b-listening-tests
Benchmark of course claim that both are 'transparent' and only give 2 cases where a DAC2 'might' be better. Two thumbs up for their honesty there.
From what little I know specs is the last thing audio professionals worry about with some of their choices. Impressing clients possibly comes way higher, which may drive the choice of some labels. *
I thought we were discussing DIY here? Of course professionals won't buy DIY stuff. However it must be soul destroying for those professionals who need absolute SOTA in a DAC when the finished product is compressed to buggery in mastering.
*Recording Studios | London | AIR Studios is a perfect example (to me) of catering to a diverse client base and their whims.
Well, others have answered this but -- if you think you need test kit you don't have, rent it. But then, I also think any correctly engineered DAC with an appropriate spec for the job spec will sound the same, if you don't peek.
There's no magic, just engineering.
There's a whole bunch of that sort of thing in the Benchmark Application Notes collection. To me, they are a rare example of high end audio done right. Of course I still can't afford any of their stuff, but hey. ¯\_(ツ)_/¯
-- Jim
You do not need to spend much to get SOTA USB DAC performance. These measurements are from a $60 USB DAC Xmos U8 DAC AK4490 Top Asynchronous USB Decoder Support Headphone Output | eBay With two mods- a 12V DC supply and swapped the socketed opamp for an LME49720. Not much of a challenge.
More could be had if someone wanted to make new firmware to support additional features supported by the AK4490.
(Both at 44.1 KHz sample rate and the distortion is possibly limited by the Emu 1616M.)
More could be had if someone wanted to make new firmware to support additional features supported by the AK4490.
(Both at 44.1 KHz sample rate and the distortion is possibly limited by the Emu 1616M.)
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We're back here, is this stuff subtle and you need care to hear it or do you have to be deaf not to hear it? It can't be both ways. The NWAVGUY has been doing his thing for a while and has listened to a lot of stuff so to him the difference is nil. For me there's a big cloudy sea of overlap on difference preference issues and these discussions are doomed to go no where.
I have to bail on this stuff, I couldn't tell the difference between an ordinary decent sound card and an ESS9018 reference design on 24/96 Hi-Res downloads and good headphones. So all that remains is let's do it together just like there are no great wines only great bottles of wine there is no substitute for sharing exactly the same experience.
Nothing stopped an argument faster than when a well known rather obnoxious wine collector and a certain wine importer sat down to dinner and the collector donated a bottle (IIRC Shrieking Eagle itself) and the wine importer said yes this is **** in my opinion (but in much more elaborate words to that effect). I had the same experience on a lesser scale with Flowers Zinfandel brought by a true believer, high alcohol evil swill and much to my pleasure oxidized noticeably in less than 30min.
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