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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: To Everyone Who Has Posted - Thank you ... posted by Phil Tower on April 24, 2004 at 08:54:15:
Suddenly everyone's playing nice! Maybe it was me?jneutron:
Thanks for starting that discussion of the Nordmark stuff. If this research result is correct, and we really are super-sensitive to timing issues, there is suddenly a much bigger correlation between "good science" and a lot of "tweaky audio" folklore.
In particular, the post http://www.audioasylum.com/forums/prophead/messages/8404.html is great because you list (presumably deliberately) most of the most contentious areas of current debate.
Do you have any idea what it takes to maintain a system temporal accuracy at that speed??? And as a side note, your resistive load (as well as everyone else's) is absolutely incapable of remaining resistive at those frequencies..
Holy mackeral...if that time resolution stands as correct, it becomes a whole new ballgame..
It means that the dirt LCR parameters have to be re-measured accurately up to about a Mhz, and will have a huge effect on lateralization of image (soundstage).
It means DC, with it's frequency dependent number, would have to be accounted for..
It means skin effect comes into play, for current density based resistive increase, as well as for transient temporal fidelity.
It means line cords have to have new standards for geometric construction, to alleviate the loop coupling which will affect the amp input.
It means amplifier internal ground current management has to be re-thought, as the line cord coupling affects it..
It means that the power supply loop geometries, those responsible for coupling to the input circuitry, have to be reconsidered..
Rationally creating a path from this research to the need for better engineering in these areas means that we have "lowered the fence" a little AND established a direction in which to look.
Thanks!!!
Peter
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Follow Ups
- I go away for a couple of weeks and look what happens! - Commuteman 13:36:27 04/27/04 (1)
- Welcome back - jneutron 06:53:32 04/28/04 (0)
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