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  1. Champ04

    What is Clock Regeneration?

    Obviously, clock regeneration is regenerating a clock. I get that. But what does it mean beyond that? And what are the implications? Is this reducing clock jitter, how? Are there still other forms of jitter that are not neccesarily addressed? I've heard of "First in, first out", is that...
  2. Champ04

    Cambridge DACMagic, anyone?

    Unfortunately you will probably have to try them to know for sure. The DacMagic is a balanced design which would usually mean it is superior with its balanced outputs. But if you are connecting to a single ended pre/pro then that balanced topology is being knocked back down to single ended in...
  3. Champ04

    EE question regarding wadia 170i

    Quote: Originally Posted by audioengr The connection to the PCM270X is likely a USB input. If jumpered correctly, it can probably be used for USB to S/PDIF converter. Yes, according to the datasheet they are connected to the USB input of the PCM270X. I'm not sure what it would...
  4. Champ04

    EE question regarding wadia 170i

    Before I ask this I want to preface it by stating that I most likely fall into the catagory of knowing just enough to be dangerous. So be gentle. Okay. I've been checking out my iTransport. There are a few things left undone inside which got me thinking about fiddling with it. The iPod...
  5. Champ04

    Wadia DAC with Headphone Amp by Ray Samuels

    I took a close look at this thing while at CES and thought it a great idea. The 121 is, for all intents and purposes, the old 300 series from Wadia. It uses the same level of digimaster software. (digimaster 3.x) For any long time Wadia enthusiats you will remember that the 300 series of...
  6. Champ04

    "The Audio Critic" Subjectivists v Objectivists or The Blind Misleading The Blind

    Quote: Originally Posted by Arjisme Since the discussion topic of this thread is The Audio Critic, it would be helpful if you'd make the effort and raise some of those debatable points. BTW, I tried to find the issue 16 closing paragraph you referenced, but couldn't. Seriously...
  7. Champ04

    "The Audio Critic" Subjectivists v Objectivists or The Blind Misleading The Blind

    LOL! JadeEast's "non" post cracks me up. Thats right about exactly how I feel. Reason for editing?......... "never mind". I'd do it too but then I'd only be copying. haha.
  8. Champ04

    "The Audio Critic" Subjectivists v Objectivists or The Blind Misleading The Blind

    Unfortunately, just as biased as the other side of the debate. There are many debatable points but probably not even close to being worth the effort. But the closing paragraph in issue 16 was most telling to me. And funny too. Anyone who is trying to debunc someone aught not come right out...
  9. Champ04

    Naim amps and speaker cable, advice please...

    Linn does this same thing. Which is probably why their speaker cable looks very similar to the Naim and the Vanden Hul. I never did understand this approach.
  10. Champ04

    Wadia iTransport & Its Rotten Remote

    Honestly, if it werent for the fact that I love the portability of my iPod and being able to carry my whole collection around I would be using an iBook (or whatever they call them, I'm a PC) and using the iTouch as a remote. Actually, thats my future plan. At some point the idea is to put all...
  11. Champ04

    Wadia iTransport & Its Rotten Remote

    The remote was a neccesary evil dictated by Apple. The original design did not include this. The kicker is that the cheapo thing rasied the price of the unit by $50. So Microsoft insnt the only one with evil tendencies.
  12. Champ04

    Human threshold of sound and timing

    More specifics on the sitting position: There was a certain degree of set up but once that work was done it was relatively easy to ensure I was always listening from precisely the same point. Using a couple lasers I set up the environment on precise lines of sight. To make sure I was always...
  13. Champ04

    Human threshold of sound and timing

    Ok, I still have to sort through some of the measured results. And I will have to take some more measurements in order to get pictures. But I can answer some questions so far. Quote: Originally Posted by digger945 In your reference impulse response, does the time difference of the...
  14. Champ04

    Human threshold of sound and timing

    Thank you all, for your contribution. I've had an overwhelming week. But I hope to answer all the pertinent questions as soon as I can. Thanks again. I'll be back with some answers very soon.
  15. Champ04

    Human threshold of sound and timing

    Quote: Originally Posted by b0dhi Btw...did you mean microseconds there? Crap, thats a good point. I think the milli part is right but that means the subdivisions are micro not nano. I must have been getting a little tired. Thanks for the heads up. I'll go back and edit it quick.
  16. Champ04

    Human threshold of sound and timing

    I've long been curious of all the various claims and arguments regarding cable audibility and jitter audibility. Recently I devised a little experiment whereby I could take a look into my own ability to "hear" these differences. I would like to share my methods for this little experiment and...
  17. Champ04

    cable perversion (sci-fi fun)

    Hey, I had a pair of the DQ-10s. Try these links for pics http://www.audiocostruzioni.com/r_s/...st/dal-1-1.JPG http://www.positive-feedback.com/Iss...10%20Front.jpg Strange literature combining speakers circa 70 and cables using spinal chords!
  18. Champ04

    Is it time to boycott cable companies?

    Um, well, I know because I have many close personal contacts inside all facets of the industry. Does that satisfy your question? Or maybe you could just look and see that all the companies I named have been around and showed no sign of going anywhere for at least ten years. And you are...
  19. Champ04

    Is it time to boycott cable companies?

    Quote: Originally Posted by tarquineous I agree too that the asking price is simply price gouging. Many of the high priced cables are very good. The crooks know it, and that's when they raise the price. Then another catches on.... then another. Then they wonder why business is bad...
  20. Champ04

    Interconnect Impact on Electrical Waveform Lab with Results

    Good job Dave. As you can see from Nick Charles response, this experiment is probably only the beggining! Thanks for sharing all of this with us.
  21. Champ04

    Wadia iTransport & CI Audio Power Supply

    Quote: Originally Posted by pjw241142 How does the CI Power Supply unit compare against the Audiocom mods I havent compared the two directly so my opinion should be taken with some caution. But it has been my experience that designing something from the ground up is usually...
  22. Champ04

    DAC-off MkII: The Wadia joins the fray

    Wadia's designs are very well engineered. They are always some of the most detailed presentations. But not always to everyones taste. Towards this end I highly HIGHLY suggest that people who own Wadias or are thinking about them try a couple tweaks. First and maybe most important is chasis...
  23. Champ04

    Wadia iTransport & CI Audio Power Supply

    It could easily be argued that a good power supply is MORE important for digital. This is because the clocking system is dependant on the stability of the dc voltage. The more stable the voltage the less jitter there is. I didnt use the CI unit. I built my own fully regulated PS. But in the...
  24. Champ04

    discrete opamp/ discrete output stage

    Quote: Originally Posted by StanleyB1 That's like saying that electricity north of the equator is less noisy than electricity south of the equator. I would have to totally disagree. I find that the electricity south of the equator is less noisy.
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