I was thinking air heads.
Air heads would likely have much better channel separation.
se
My office has horrible line trash, taking the noise floor and notching out the first few harmonics just changes the base buzz tone but it remains distinct from the hiss.
It is still noise as used in every day communication. Just not random noise as used in the technical world. We dont HAVE TO put everything into technical terms and jargon.
THx-RNMarsh
And your name for unwanted signal that creeps in is?
You are welcome to your very limited definition, but you should be aware others are not.
😎🙂
-RNM
Stochastic versus deterministic is the distinction.
EDIT: reminds me of a big paper I wrote and in the beginning made this distinction---and thereafter never had the need to use it, as everything involving noise was stochastic. Oh well, non-refereed publication.
EDIT: reminds me of a big paper I wrote and in the beginning made this distinction---and thereafter never had the need to use it, as everything involving noise was stochastic. Oh well, non-refereed publication.
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But it sure helps keep conversation clear and concise, especially since we have so many non-native English speakers (not that they're any worse at English!). Why be lazy about our language? It's not like that's a super low-level term known to a dozen people on the planet. Noise vs other spuria.
BTW the 70dB suppression between ears seems very high.
The missing piece: is that number based on a headphone measurement? I suspect it is, but no reference was given.
I think there was a clear reference: 'I think I read somewhere that....'.
Experts here do it al the time.
Jan
Experts here do it al the time.
Jan
I think that we now have on this thread, an example of the most rationalizations promoting audio design compromises that I have ever heard in one place. '-)
95dB at 50/60Hz and greater to over 100KHz. Those numbers from a CFA should put the PSRR debate to rest for CFA. It will work very well IMO.
I hope we get X-talk build as good as well. Your distortion and slew rate and noise are all excellent. But also OPS isolation backward.
I am looking forward to hearing them with the new JBL M2 Master Reference Monitors.
The amp build in progress --
View attachment 557474
View attachment 557475
THx-RNMarsh
Wow Richard! Can you share some details of the build? Looks fantastic
🙂
Everything with respect to highest quality audio can be both important and demanding. This is where dismissing what 'might' be important, so as to make it easier to do (or lazier) does damage to people's opinions who search for the best.
We can't PROVE everything in audio subjective discernment, but we have found through experience, not just by ourselves, but by others who use our or similar audio designs, that it is almost impossible to 'over-design' a quality audio product. Perhaps, 2" of the wrong connecting wire could make an audible difference. This happened to Roger Skoff, in one case and he pointed it out on facebook, just today.
We can't PROVE everything in audio subjective discernment, but we have found through experience, not just by ourselves, but by others who use our or similar audio designs, that it is almost impossible to 'over-design' a quality audio product. Perhaps, 2" of the wrong connecting wire could make an audible difference. This happened to Roger Skoff, in one case and he pointed it out on facebook, just today.
Skoff, the wire huckster? Sweet, I'm sure his Facebook postings are just as honest and well-informed as his other writings.
Derf,
At least we can say that the speaker though having low conversion efficiency and can create distortion it is not the source of noise unless something is wrong with the speaker. I haven't seen any speaker builders equating any magic sound improvement to the tinsel lead-out wires in their speakers, perhaps I have just missed that!
At least we can say that the speaker though having low conversion efficiency and can create distortion it is not the source of noise unless something is wrong with the speaker. I haven't seen any speaker builders equating any magic sound improvement to the tinsel lead-out wires in their speakers, perhaps I have just missed that!
Skoff, the wire huckster?



the junctures between the crystals of most copper wire—are not insulators, at all, but semi-conductors; whole gangs of tiny diodes that do affect the passage of signal through the wire (especially stranded wires, where electrons, always seeking the straightest path, will jump from wire-to-wire in a stranded conductor, passing, in the process, through two such tiny diodes with every jump. (Do you remember what two diodes are? The answer is a rectifier, which does exactly the same kind of filtration in a wire as it would do in the power supply section of any piece of electronic equipment.) For the wires in a hi-fi system, the result can be a quite noticeable loss of detail.
Well SY, this is where our opinions differ markedly. I only recently met and talked to Roger Skoff, and I have never tried his wire. However, his opinions, separately derived, parallel mine in the vast majority of cases. Apparently, he and I hear alike, and you and I do not. We (Skoff and I) try to make audio quality better and better, even if we have no commercial stake in what we are looking at. You call us 'hucksters' but you are wrong in this opinion.
Again you just have no sense of humor. That quote is worth at least








But just because he is spouting unproven theories does not mean his observations are incorrect. They only support that conclusion.
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Don't you remember? John measured those diodes.
Hate to be the one to tell you, BUT there are diodes in your metal wires. More than you will ever bother to measure. I have measured them.
😛
se
Funny when you say it it's OK but when I do I'm wrong.
You see, it’s never OK 😀
And yes I disagree with Georges word usage
Ed and Scott
Buzz is the proper word for what I have experienced with the through the transformer core capacity coupling btn live and chassis.
Ed I am all for using words which have a definite meaning. Makes for a positive communication.
It's also my understanding that hum is almost always a result of magnetic coupling ( if not entirely a result of mechanical coupling from a vibrating transformer). And buzz almost always a ground loop issue
https://www.dropbox.com/s/snli120yfug1aiw/Copy%20of%20hum.wav?dl=0
https://www.dropbox.com/s/mmlutbaavng31bg/Copy%20of%20Buzz.wav?dl=0
George
Don't you remember? John measured those diodes.
Hate to be the one to tell you, BUT there are diodes in your metal wires. More than you will ever bother to measure. I have measured them.
😛
se
Troublemaker.
Do we reeeaaaallly wanna go down that path again?? 😕 😕 🙂
microdiodes...sigh
John
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