Originally Posted by k_lewis
My points were:
1. The analog out on the Oppo 95 is superior to it's SPDIF output in sound quality. That is a tried, true and tested fact.
It's an opinion, not a fact. There is nothing so special about the Oppo's analog output, nor so poor about its S/PDIF output, that a well designed external DAC could not meet the same level of performance. Not every DAC, but some DAC.
2. I had to actually explain that there is such thing as balanced digital output and AES/EBU on high end transports, and it is there for a reason, and implementing a high end digital output section on a transport typically costs the manufacturer a fair amount of money just in the parts.
That's two different issues.
1) Balanced outputs: The reason is the same as that for balanced analog outputs: immunity to interference in harsh environments. This may well be worth the money in pro or high-end consumer installations. But just as with analog, absent the harsh environment a single-ended digital connection can
work just as well as a balanced connection, as else being equal.
2) High end digital output: The benefits of high quality circuitry accrue to either balanced or single-ended systems.
The so called "expert" from Stereophile has no idea AES even exists, which I find laughable.
You have no evidence upon which to base your snide remarks.
Never did I originally say AES is "automatically better than any other medium", so stop making things up to try and win an argument.
Ok, so if you agree that S/PDIF can sound just as good as AES/EBU, then we have completed the conversation to my satisfaction. Thanks, I'm happy to move on.
Speaking strictly from my experience in testing and working with a lot of vendors at audio shows, system integrators, etc, they *ALL* use AES from their high end transports to their DAC. There must be a reason for this, no? Really?
You must be kidding. No? If you think this constitutes proof that an Oppo S/PDIF into a good DAC can never sound as good as the Oppo's analog outputs, then we are not going to make any progress here.
And then I fell into having to explain there is a difference in quality high end digital circuitry vs the consumer grade stuff, and that as a practice, you'll always find an AES on high end transports, as that is the preferred connection with that higher level of transport. I'm not making this up, it exists and is just this way.
Again, not relevant to the question at hand regarding the Oppo and an external DAC.
If you do want to go down the "medium" road, I can just see the huge HT systems with 50' SPDIF runs to the AV closet and recording studios with their 100+ ft 12 channel runs of SPDIF, because you told them there is no benefit or difference with using AES from their $10k transport or digital recording workstation to the DAC / processor. Hah!
So yes Roger- All of the high end transport manufacturers, show vendors and recording studios are wrong and working under "false assumptions". How dumb of them! They should all defer to your all-knowing and exalted expertise on the matter- And all that expertise without actually having even used the equipment or ran a proper A-B comparison. Awesome. Can we move on please?
Besides, this thread got way overcomplicated for no reason.
It seems you are the one making it overly complicated in a futile attempt to prove what cannot be proved. Indeed, let's move on.