Marco2
100+ Head-Fier
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- Oct 15, 2005
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I use Cardas on 600's and Equinox on 650's. In my experience they do make a worthwhile difference in SQ and help get the last ounce of goodness out of them.
Originally Posted by evangellydonut /img/forum/go_quote.gif Even among the EEs, very few ever spent much time looking at "signal integrity" in detail. I would venture to say 90+% of the EEs doesn't really understand what "signal integrity" really means, other than paying some lip service. I don't understand it all either, but I have worked on it for about 2 years. I've been totally amazed at the number of people who design by trial-and-error, until a catastrophic failure occurs. (it served me well in college... let's leave it at that) If you ask "most EEs" what is the speed of signal transmission in a coaxial cable and speed of a PCB trace, most wouldn't know or care. The "theory" says electrical signals travel through wire at speed of light. The practical number for coax is approximately 3/4 speed of light, PCB trace only about 1/2 speed of light. This is not the appropriate place to talk about why, just giving you some example as to "reality" vs. "theory". Another example - In theory, them voltage regulators in your iPods etc should provide a good amount of filtering of noise from external power supply. (Same can be said about your home receiver) But I can easily hear ground-noise when listening to music with the ipod plugged into the wall. Lastly, there's that apple power supply issue I mentioned in an earlier post. When I first graduated college, I was completely skeptical of all these wiring claims too... I STILL think speaker bi-wire is a myth. As I learned more about impedance matching, insertion loss, return loss, and all that jazz, I've realized how far reality is from theory. Today, until I've seen spectrum analyzer sweep of some setup under various noise injection and cable configuration conditions, I will remain open-minded. dBs - thanks for the info =) I definitely don't know enough about this topic nor pretend to, just know a little more than "most EEs" =P haha... (dude, when I was interviewing people, I was totally amazed at how clueless 80% of the interviewees were...) |
Originally Posted by Max F /img/forum/go_quote.gif I have a strange feeling that if the stock hd580/600 cable was a little more thicker and stiffer (and not a wet noodle it is now), that folks wouldn't be so harsh on it. Just a thought. |
Originally Posted by evangellydonut /img/forum/go_quote.gif EdBs - thanks for the info =) I definitely don't know enough about this topic nor pretend to, just know a little more than "most EEs" =P haha... (dude, when I was interviewing people, I was totally amazed at how clueless 80% of the interviewees were...) |
Originally Posted by mbd2884 /img/forum/go_quote.gif One thing for sure... I have one of the newer HD650s, white, and whenever I read cables that still claim, removes veil... that confounds me. There is no veil to remove! |
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Originally Posted by tdogzthmn /img/forum/go_quote.gif What do you mean by white? |
If you ask "most EEs" what is the speed of signal transmission in a coaxial cable and speed of a PCB trace, most wouldn't know or care. The "theory" says electrical signals travel through wire at speed of light. The practical number for coax is approximately 3/4 speed of light, PCB trace only about 1/2 speed of light. This is not the appropriate place to talk about why, just giving you some example as to "reality" vs. "theory". |
Originally Posted by AzN1337c0d3r /img/forum/go_quote.gif But we as Electrical Engineers, we don't think about this theory in great detail often. Our job is to be practical, to make useful compromises when designing products. Sure we could design an MP3 player with ridiculous audio quality in mind, shield every single chip from each other, use 8-layer PCBs to route all our signals, then finally enclose the entire thing in a Faraday cage. But such a player would be prohibitively expensive to make, and would completely fail in the marketplace. |