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About gmgraves

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  1. That’s true, the backside of the Peltier element does need to dump the heat removed from the cold side, the liquid cooling would do that. Thanks, I’d forgotten that those solid state coolers are called Peltier elements.
  2. Processor water cooling will not be cold enough to make any appreciable change in the distortion of a DAC chip I’m afraid. In the case of the water-cooled microprocessor, the cooling is used to keep an over-clocked chip from self destructing due to self-generated heat.
  3. But you are cooling the die below ambient and certainly below it’s normal operating temperature. So we’re still, essentially talking about the same phenomenon.
  4. I don’t doubt it, as a former semiconductor engineer, I have seen experiments where microprocessors were subjected to cryogenic temperatures. They always ran faster, and more efficiently, the colder the chips became. In all the experiments to which I was savvy, the cold was applied to the bare die, not to the encapsulated IC. While a cooling system using a refrigerant is somewhat impractical, we could use one of those semiconductor “heat pumps”, the kind used in portable electric coolers, and which are cold on one side and hot on the other. I don’t believe that it would work unless the cold side of the semiconductor heat pump were in direct contact with the DAC die.
  5. Yeah, I saw that. Got quite a chuckle out of it!
  6. Thanks. The notion of a “third unfold”, I got from the MQA website. They talk about it but don’t say anything other than that the renderer does the second and third unfold and gives the listener the audio that is exactly what the engineers and producers heard from the studio playback. So what you are saying, if I understand you properly, and I respect your knowledge, is that the Core Decode is really all one needs for MQA playback.
  7. If the first unfold, generally done in software such as the Tidal app, Audnirvana, and Roon outputs files of either 88.2 or 96 KHz sampling rate, what do the second and third unfolds from the Renderer do? I called AudioQuest, and was dumbfounded to find that their technical guy didn’t know! He suggested I contact MQA in England. But before I do that, I thought I’d ask here. Thanks in advance for any help on this issue.
  8. Don’t forget Red River. The only time when The Duke did not play a very Sympathetic character. He played a malicious martinet, and he was good at it too. That might have been his most demanding role. But director Howard Hawkes knew that Duke was good for it and could pull it off.
  9. I hope you didn’t think that the Duke actually directed this blockbuster of a film? The Duke was good actor (albeit with a narrow range. Can’t see the Duke playing Macbeth, for instance), but he was no director. On the other hand, “Pappy” Ford was one of the greatest directors of all time. I once had LaserDiscs (over 400 of them) and players, but the dread “laser-rot” and generally poor resolution of discs combined with the poor tracking of the analog playback system caused me to ash-can the player, and give the discs away after DVD came out.
  10. What about the one that looks like the Martian in George Pal’s original “War of the Worlds” from the early ‘50’s (btw, the ONLY film of H.G. Wells’ classic science fiction story, as far as I’m concerned.). Wish I could remember the name of that speaker.
  11. Since I spent more than thirty years in the semiconductor industry in Silicon Valley CA, I know that. I have used the software to program FPGAs as well as creating the programs for Mask Programmable Gate Arrays (MPGAs) many times. But thanks for clarifying for others here, just the same.🙂
  12. You were clear. I was just correcting your nomenclature. Circuits made up of discrete components (even if some of those individual parts are, in and of themselves, true ICs like op amps) cannot be called ICs.
  13. I’ve yet to hear two different DACs sound, even superficially, alike. Even different models from the same manufacturer sound different.
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