Oh please, who even remotely made an ad hominem attack?
You are kidding me, right?
Yes right, both I and I assume jn respect Earl as an authority in his discipline. Neither of us attacked him as a person or in fact even attacked anything he said.
Why do you keep coming outside of your speaker thread to promote your nonsense theories?
Why do you keep coming outside of your speaker thread to promote your nonsense theories?
There is little to be served explaining.Yes Joe can you express what you are trying to say in terms of the power dissipated in a complex impedance?
EDIT Come on jn let it rip. 🙂
It's like a coke bottle falling from the sky.
I am enjoying sitting in the cheap seats laughing to myself.
Ps.. they finally hired my replacement... in a few years, I will be able to leave knowing "stuff" will not be lost.
Jn
Ps.. yes, I respect Earl, the quote attributed to him is quite inaccurate. It remains to be seen if it was taken out of context or not.
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It's like a coke bottle falling from the sky.
I've seen the movie, I understand.
So you guys agree with Earle?
So it is correct to use the phrase "back-EMF impedance" now?
Earle did.
So it is correct to use the phrase "back-EMF impedance" now?
Earle did.
What you have quoted...no.
However, Earle has the capability of learning where he is incorrect.
Back emf is not an "impedance".
Understanding Ldi/dt + IdL/dt is not something I see anywhere.
Jn
However, Earle has the capability of learning where he is incorrect.
Back emf is not an "impedance".
Understanding Ldi/dt + IdL/dt is not something I see anywhere.
Jn
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You guys can't have it both ways.
I am a student of logic, this is absurd.
What I am pointing to, and I gave an example which perhaps was not understood (or more likely did not even try), that understanding this topic can lead to better speakers and better amplifiers. Maybe there is a view that can't happen. Perhaps that explains it, but I disagree, I think they could be designed better still and I might actually be in the majority and criticised by a minority? Yep, that is what I see.
As for me being here? Because it's a free world and what's more, free speech actually matters even if Big Brother does not like it? 😀
I am a student of logic, this is absurd.
What I am pointing to, and I gave an example which perhaps was not understood (or more likely did not even try), that understanding this topic can lead to better speakers and better amplifiers. Maybe there is a view that can't happen. Perhaps that explains it, but I disagree, I think they could be designed better still and I might actually be in the majority and criticised by a minority? Yep, that is what I see.
As for me being here? Because it's a free world and what's more, free speech actually matters even if Big Brother does not like it? 😀
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Being a student of logic is fine.
Your examples and understandings are rather flawed.
You may eventually understand, as may Geddes and Klipple..
I do not worry..
Jn
Your examples and understandings are rather flawed.
You may eventually understand, as may Geddes and Klipple..
I do not worry..
Jn
I revel in my decision to not engage.. so freeing....
Ps.. they finally hired my replacement... in a few years, I will be able to leave knowing "stuff" will not be lost.
Jn
"They call him mellow yellow...
quite rightly"
Nice to read your dulcet prose again, John! When you going to develop that Electrical Banana? (see above)
To Joe; Having built systems with varying approaches to current feedback, once the system is equalized for flat response I like the improvement in SQ, I find it is mostly in improved dynamics. The first implementation I was involved in the early 1990s I was screwed out of any return (my lawyer was apparently cheaper than theirs). A recent implementation I had fun working on was a powered studio speaker system now selling for $65k, 8 channels of amps totaling several KW. That job made a few $$s, but on a $/hr basis would be better described as a hobby project than a commercial job...*sigh*
I guess I'm not smart or crooked enough to get rich in audio...good thing I learned how to fix my 20 year old lawn mower...
"When the sun beats down and I lie on the bench
I can always hear them talk
Me, I'm just a lawnmower
You can tell me by the way I walk..."
Cheers!
Howie
Wow. That is seriously good. I’m still on my Topping D10 but the okto is a whole different class.

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George
Hi Howie,
I think it was a shame that Genesis threw out Peter Gabriel, they went too mainstream after that.
PS I am staying clear of the Kettle Math, life is too short to waste on trying to reach concensus about what the words mean.
I think it was a shame that Genesis threw out Peter Gabriel, they went too mainstream after that.
PS I am staying clear of the Kettle Math, life is too short to waste on trying to reach concensus about what the words mean.
"Back EMF has been known for almost 100 years now. It can be shown that as far as the amp is concerned the back EMF simply looks like a complex impedance...There simply is no difference between back-EMF and impedance." Earle Geddes, with full permission to quote him.
Bingo!
As per moderation comment above, please link to the post containing the statement so that we can understand the context.
//
Since Dr Geddes is not participating in this thread, here are some earlier comments.Does he disagree with Earle Geddes?
"There simply is no difference between back-EMF and impedance."
Back-EMF and flat impedance
Back-EMF and flat impedance
I cannot remember the name of the theory, but it is that any resistor in a network carrying current can be replaced by a P.D which is the same as that produced by the resistance and current.
If there is a criticism of a post, it may or may not be directed at the person but rather at his comments, this determined by often subtle modifier accompaniments.
If there is a criticism of a post, it may or may not be directed at the person but rather at his comments, this determined by often subtle modifier accompaniments.
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I just love that Rasmssen is arguing with Scott Wurcer, who among other landmark IC's designed the AD797, which is probably the lowest noise op amp ever fabricated producing an input noise equivalent to a 40 ohm resistor. He knows a thing or two.
Damn you Howie, I'm now sitting humming 'I know what I like and I like what I know'.
I feel a prog session coming on...
😀
I feel a prog session coming on...
😀
I cannot remember the name of the theory, but it is that any resistor in a network carrying current can be replaced by a P.D which is the same as that produced by the resistance and current.
Thevenin.
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