John Curl's Blowtorch preamplifier part III

[dreamth]

No ferrites in Bybee device.

Prove it!

 

[radiosmuck]

None of your business, I would say, what someone chooses to do with his time. Many of his post are interesting, never read anything worth remembering from you. So if you were to post that frequently, I would wholeheartedly agree. Although it would still not be anybodies business to say so.

I was a gentle nudge to suggest there are better things to do in ones later years, unless there is a mobility problem or working towards an RIP record in the In Memoriam section.

 

[Markw4]

It seems to me odd that you guys are not detecting this difference when others reliably do so.

It means some people's brains don't process sound the same way yours do, and or their reproduction system isn't clean and or detailed enough to make it easy to learn. Or, they may have no wish to try to learn. The argument, "why learn to listen for things you won't like?" is not logically unreasonable. Of course, if one is an audio equipment designer then there might be an argument that learning to listen is similar to acquiring an essential piece of test equipment. Unfortunately, listening is one that needs frequent-enough calibration by way of blind testing. You know how the sound stage collapses and all that when blind (or whatever your words were to that effect in the past), and that is what some people hear all the time.

 

[dreamth]

Only God made the world out of nothing...So JB is God and JC is its prophet!

Does anybody know who's JD? I know JayZ though 🙂

 

[Evenharmonics]

You did right to ask. Too bad Max was still mad at you for some of your earlier comments or he might have answered more civilly. He will get over being mad though, if you give it a bit of time before going on the attack again. No good trying to change his opinion by attack anyway, and readers not involved in the exchange can see you are the grouchiest guy in the thread. Sometimes that grouchy thing comes with being an old man.

And you attack his age. 🙄

 

[john curl]

Tested it with a magnet! I also have the impedance curves for an individual device.

 

[dreamth]

Then it's nothing God!

 

[dreamth]

I think its time for :
John Curl's Blowtorch preamplifier part IV
Who's gonna get it first?

 

[Markw4]

And you attack his age. 🙄

I'm old too, so I am attacking myself? Please stop trolling.

 

[scottjoplin]

Bill seems old for some reason

 

[dreamth]

Tested it with a magnet! I also have the impedance curves for an individual device.

A ferrite bead is having an effect after more than 1megaherz...so in the case of a fast CFB amplifier, the feedback network WITH NO ZOBEL AS JC AMPLIFIERS(HCA2200?) will certainly benefit from a reduction in HF content thus becoming more stable.

 

[john curl]

No Dreamth, you are mindlessly speculating.

 

[Markw4]

A ferrite bead is having an effect after more than 1megaherz...

Depends on the ferrite material being used. Ferrite clamps on analog audio cables can affect sound quality by adding distortion. Not saying all ferrites will do it, but some can. For USB powered dacs, some ferrite clamps could add some noise to 5v power rail, and if filtering is inadequte in the dac then there could be some impact on sound quality. It would depend on the particulars.

 

[nezbleu]

Self-refutation

...and if not the certain conclusion is that you have inadequate systems and/or profound deafness

Yes, and/or your system is not fit for purpose, in your case which is it Bill ?

Anyway, perhaps the key is that your system requires refinements and therefore the playback files changes are obscured.

If you are unable to tell difference between 01 and 02 files easily then I say that your system needs better LR channel matching and better depth portrayal.

If your system cannot resolve 01>02 file differences your system is not optimal and is by definition not capable

Then you have no place in this discussion or other discussions because you do not have sufficiently good gear to be making comment about audio quality, simple and plain.

...

Right now I am running Bluetooth link to Logitech speaker in the kitchen and the 01>02 differences are perfectly audible.
...using my Samsung phone as music player using internal speaker

😕

I'm glad we have established what constitutes a proper playback system.

 

[nezbleu]

It means some people's brains don't process sound the same way yours do, and or their reproduction system isn't clean and or detailed enough to make it easy to learn. Or, they may have no wish to try to learn. The argument, "why learn to listen for things you won't like?" is not logically unreasonable.

Don't the ones who Dan says reliably detect these differences, all have something in common?

 

[scottjoplin]

Yesterday night, I made myself a listening test of my hearing. Well, I cut at 12kHz.
And, lets say at 10kHz, i feel like i'm still ~linear, and my hearing cuts sharply after this. I'm aged of 73.
After, I remade a test about something I did often in studios: a pass band corrector that makes a bump between 20 and 40 kHz. Every little move on the pot was sensible, even with the poor speakers (no tweeters) of my PC.

I let the human hearing specialists explain that. A question of phases turns or slew rate ?

Have you had a look at this link posted by SoundAndMotion?Temporal envelope and fine structure - Wikipedia
There is a lot of info and further links. It is also apparent that there are gaps in the knowledge.
Also have a look at the different "Theories of Hearing"

 

[chris719]

And you attack his age. 🙄

It's fine, I'm not that old anyway. I ruffled his feathers a bit, I can take it.

...

😕

I'm glad we have established what constitutes a proper playback system.

He keeps digging himself deeper. I wonder if John will give him some more blind encouragement, or the whole charade becomes too much at some point?

 

[dreamth]

No Dreamth, you are mindlessly speculating.

i'm free to do it too 🙂

 

[Markw4]

Don't the ones who Dan says reliably detect these differences, all have something in common?

Depends on which differences you mean. Between the original file and a loopback recording would be one thing. Between an 'treated' and 'untreated' file would be another thing.

The loopback should be at least slightly audibly different from the original, I would expect.

IME, unlikely to be an audible difference for treated vs untreated, if that is the only difference in processing. Hearing that seems to be a local phenomenon that only occurs in proximity to Dan, and if not blinded.

 

[Evenharmonics]

You did right to ask. Too bad Max was still mad at you for some of your earlier comments or he might have answered more civilly. He will get over being mad though, if you give it a bit of time before going on the attack again. No good trying to change his opinion by attack anyway, and readers not involved in the exchange can see you are the grouchiest guy in the thread. Sometimes that grouchy thing comes with being an old man.

I'm old too, so I am attacking myself? Please stop trolling.

Pointing out a poster's hypocrisy isn't trolling.