John Curl's Blowtorch preamplifier part III

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Stop bending the truth.
I've quoted your post before when asking the first time for the evidence for your claims.
Now you did ask if it were your words and I answered as requested, so bring up what you've promised, it's just that simple.
What you accused me of claiming (by not quoting) didn't take place outside of your own mind. Go back and reread post #21590.
 
(In DAW world that's critical).

Using the system Terry suggests, latency primarily comes from DSP if using HDplayer and or Roon on the computation engine i7 box. It can be a few or several seconds delay for highest quality DSD playback of PCM source material even with a very fast computer.

The JLsounds I2SoverUSB board itself is fast enough for DAW use, but if using its ASIO driver then your DAW might not be able to access any other ASIO devices at the same time, such as for recording inputs if needed.
 
You're speaking in anger again. The laser power supply at LIGO is at 9 digits quiet using ordinary good engineering, it has to be.

No, just making an observation about how often LIGO/Nobel prize is mentioned on audio forums as some sort of 'scientific' argument

So, what you are saying is LIGO didn't use batteries - so? Do you have the schematic for the reference circuits used in LIGO? What regulators used, etc?

Does that mean that batteries don't have advantages for use in audio, particularly digital audio over stock voltage regulators
 
What you accused me of claiming (by not quoting) didn't take place outside of your own mind. Go back and reread post #21590.
Your denials are pitiful - below is exactly what you said.

Oh, that "research". Why should anyone fall for snake oil sales pitch that Jakob(x) tried over at Hydrogenaudio and already got exposed for what it is?
 
If you use a storage cap after the battery does that reduce the noise?

Ordinary storage cap between battery & device being powered is usually detrimental to sound also. Bypass caps at pins are still needed so it's likely LF stability is the issue.

The noise of batteries is an old myth which doesnt apply to modern battery technology such as LiFePO4 - check out noise measurements of LifePo4 on here

But battery packs (as you purchased - sorry, not you but Tournesol bought smartphone battery pack) already have a voltage reg on the output so you won't get the full benefit of direct battery drive
Get yourself a LiFePo4 battery 3.3V & use it direct on digital audio device. Search for LiFePO4 on here & you will see some people discussing them

Figured it’d be a good place to learn the lingo and get a feel for forum etiquette :D

Nah, probably the worst thread you could choose but you certainly met some of the core antagonists - some of whom have great, specialised knowledge but don't know their limitations & aren't interested in learning - no curiosity, unfortunately. Anything outside of their areas of comfort causes much defensiveness usually accompanied by attempted demeaning which only demonstrates the discomfort of their egos
 
Ordinary storage cap between battery & device being powered is usually detrimental to sound also. Bypass caps at pins are still needed so it's likely LF stability is the issue.

But battery packs (as you purchased) already have a voltage reg on the output so you won't get the full benefit of direct battery drive
Get yourself a LiFePo4 battery 3.3V & use it direct on digital audio device. Search for LiFePO4 on here & you will see some people discussing them

So the bypass cap close to the pin gives it the extra speed, just as using a small value cap on a HF xo (series cap) to increase transient speed?

My friends playing Autumn Leaves at my son's wedding :)

http://pmacura.cz/svijany_jam.mp4

Cool to see such conviction from so young musicians!
 
So the bypass cap close to the pin gives it the extra speed, just as using a small value cap on a HF xo (series cap) to increase transient speed?

Yep, it deals with the transient current requirements - seems the large capacitance of battery or supercap is about stability - see also Abraxalito's experiments with multiple uF caps in parallel rather than supercaps - again improvements that aren't easily explained by what you hear on here.
 
Yep, it deals with the transient current requirements - seems the large capacitance of battery or supercap is about stability - see also Abraxalito's experiments with multiple uF caps in parallel rather than supercaps - again improvements that aren't easily explained by what you hear on here.

If it’s anything like the bypass cap on the xo it takes some experimentation to get it right.....blurring was an issue.
And it’s not the uf values, or esr, But materials that made the differences.

Not exactly a popular topic with the EE’s....

Bracing for impact! :scared:
 
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