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Also, the Aries Cerat machines are non-oversampling whereas the Accuphase was 8x oversampled and of course SS output. Anyway, again this is an all PCM machine, which is limited to redbook, but this machine might do PCM better than most of today's entries.
Jun 22, 17 93 Soquel, CA. The Gustard can play up to DSD, all pcm, has a digital volume control and sounds good out of the box The Aries Cerat would kill that thing. The signal to noise in the Gustard is way, way better than parallel PCM 63s. A nice boat anchor Who wants yesterdays DAC By the way. It had 10 power transformers 5 for digital and 5 for analog , shunt regulators, Marigo dots, shielded DAC chips, hardwired digital cable, damping, etc.
However, even modded players soon beat it. The beat goes on. I have some pictures if anyone is interested Found some pics I have close ups too. Actually, I lied, I forgot about the transformer for the muting Here it is: Mike's Max Stax Last edited: Jan 26, Ric Schultz said:. May 30, 16, 1, Portugal. At that time the Stereophile measurements were only a few and very basic, analyzers did not have the resolution or the capabilities of the current measuring systems.
At that time the challenging measurement that people loved because it resulted in a nice picture was the dB 1KHz - something where the PCM63 would be great due to its dual R2R structure! But there is a lot more to consider in a DAC.
Actually I think the DC is still a very good measuring machine. It has low noise, good linearity nice waveforms. However, as we have all learned along the way, hopefully, the measurements are by no means a direct translation to sound quality. I haven't heard a DCS stack yet that I found musical.
If you think its great that's fine but throwing numbers into the game says nothing about sound quality. If you have heard either or both please comment on the sound. Maybe they are not good because their analog stages are typically "over" engineered.
I doubt that they do not sound good because of their digital implementations, which are still contemporarily relevant, IMO. Dec 26, 11, I only referred the measurements because in order to comment measurements I needed measurements As you know I think measurements are an important think, but not to rank high end equipment. I am always afraid of the unobtainium in high-end, independently of the reason.
Perhaps it limits my views, but dreaming about products I never listened, or will never be able to own is not in my audiophile activity. I suppressed all the analog stage and replaced it with an LC filter and 50 ohm precision resistor. IMHO it sounded better than the original. R2R chips have characteristic technical problems - mainly in the differential and integral linearity and even being non-monotonic.
All else and their influence in sound quality is forgotten in audio products datasheets. I have spent 35 plus years tweaking products and making high end thangs including DACs What I know, is that I know nothing. The game is infinite. Every single thing you do to something changes the sound. Yes, all DAC chips have an inherent sound However, the idea that one DAC technology, no matter how it is implemented is the "only" way to go is just plain silly.
Because every thing matters. Sorry, but this Crystek part sounds forward in the treble and not that refined I am hearing jitter? Yup, that is what I am saying. The clocking, power supplies, the capacitors, the damping, the output stages, etc, etc.
One not done perfectly right thing somewhere along the chain and that is what you will hear. Why do you think I made such a crazy thing like the Max Stax However, today I would do practically nothing that I did back then 20 some years ago. That is how much we have learned. The output stage and the large transformers are still current The game is ever changing.
They started with discrete R2Rs back around Will my fully modded Gustard Pro approx. No way. Will it be embarrassed? But, we shall see Here is another thing to ponder. Now you just need something to do DSD at that super speed.
You see folks, the times they are a changing. Fun times ahead. Many who have listened to upsampled music through a great DAC are no longer listening to their turntables Of course, there are super turntables, etc As I said, I know nothing Last edited: Jan 28, Perhaps you have the DAC chip wrong in that Sony?
If the one you had is on that list then I would love to see it. I could not find it in a google search. Nonetheless, Sony is notorious for making an overly complicated and not terribly good sounding output stage.
He showed me that they must have had a fire sale on opamps because Sony was using just a ton of them in the SCD The Vacuumstate board was all discrete transistors yeah I was surprised too given that it was from Vacuumstate! So yes, you can ruin a good digital section with bad analog
Accuphase DC-91: multi multi-bit
Tape decks Tuners View All Analog. Solid state Tube View All Integrateds. Accessories D. LOG IN. I am the second owner.
Accuphase DC-91 & DP-90 DIGITAL PROCESSOR (DAC) AND TRANSPORT [Expired]