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In Reply to: Interesting on two fronts posted by kerr on December 28, 2005 at 04:48:19:
"I appreciate seeing positive results that confirm (sort of) what I've been hearing. "
If the DBT is done correctly, than it should affirm what most people are hearing.
d.b.
P.S. This thread really belongs in Prophead.
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Follow Ups:
Dan B: ""P.S. This thread really belongs in Prophead. ""Oh that would be productive..
...
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Point taken and understood all too well.
d.b.
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It's pretty clear to me that Prophead exists only for a place to put people who know, so that the people who don't know can find them and call them names.
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> It's pretty clear to me that Prophead exists only for a place to put people who know, so that the people who don't know can find them and call them names. <Some of us are looking for answers and evidence - and found both at Prophead. Your point overall is pretty accurate, though.
Hey, did you get my e-mail?You should see the biwire analysis I'm working on..
Holy mackeral is it ever counter-intuitive....if it's right..
Send it!
d.b.
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Hey, can I see it?
Jim Austin: ""Hey, can I see it?""What? You mean, a "technical discussion??" Gee, isn't that the domain of prophead?
Two signals A and B, one cable with resistance R c .
The disipation in a monowire setup is:
P d = (A + B) 2 R c . = A 2 R c . + B 2 R c . + 2 ABR c ..
Separate the signals into two wires, and the dissipation in each becomes:
P d = A 2 R c (cable 1) plus B 2 R c (cable 2).
The difference being of course, 2AB..
A difference..hmmmm..
A and B are currents, right? Otherwise your formulas are wrong.Don't you also need to take into account differences in the load? I'm not sure; just wondering.
Jim: ""A and B are currents, right? Otherwise your formulas are wrong. ""Yes, they are currents.
Jim: ""
Don't you also need to take into account differences in the load? I'm not sure; just wondering.""The branch loads are both pure 8 ohm resistance. The high frequency is arbitrary, so the capacitive reactance can be suitably low, and Dc was chosen so that the inductive reactance can also be suitably low.
The issue is one of dissipation..since the two signals of interest are mutually orthogonal, the 2AB component integrates to zero, meaning the RMS value remains the same. However, the instantaneous power dissipation within the cable(s) is different for the two wiring cases.
The discussion thread is located on diyaudio.
Cheers, John
Unfortunately maybe, but the controversy surrounding the topic has elevated to general interest. And is particularly important the myths surround the approach and it results should be dispelled.
["DBT isn't an obsure, technical topic anymore."]Would monotonous be more accurate?
["Unfortunately maybe, but the controversy surrounding the topic has elevated to general interest."]
Unfortunately for the GA, right? The only thing elevated is wishful thinking.
["And is particularly important the myths surround the approach and it results should be dispelled."]
nt
nt
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