John Curl's Blowtorch preamplifier part II - Page 2875 - diyAudio
Go Back   Home > Forums > Member Areas > The Lounge

The Lounge A place to talk about almost anything but politics and religion.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 31st October 2012, 08:21 PM   #28741
bcarso is offline bcarso  United States
diyAudio Member
 
Join Date: May 2005
Location: Canoga Park, California
Quote:
Originally Posted by Esperado View Post
Sorry, i wrote IGBT instead of BJT, as i said, i'm not friend with acronyms. It was just a typo.
Thanks for clarification Christophe!
  Reply With Quote
Old 31st October 2012, 08:29 PM   #28742
PMA is offline PMA  Europe
diyAudio Member
 
PMA's Avatar
 
Join Date: Apr 2002
Location: Prague
Quote:
Originally Posted by scott wurcer View Post
Read the results on Nelson's Zen amps, and then we can talk. Ball's in your court.
Wow! They are not amplifiers, but a special category
__________________
Pavel Macura
http://web.telecom.cz/macura/audiopage.html
  Reply With Quote
Old 31st October 2012, 08:35 PM   #28743
diyAudio Member
 
john curl's Avatar
 
Join Date: Jul 2003
Location: berkeley ca
Well, we are at stage 2: 'It exists, but it is not important.' '-)
  Reply With Quote
Old 31st October 2012, 08:46 PM   #28744
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
Quote:
Originally Posted by john curl View Post
Well, we are at stage 2: 'It exists, but it is not important.' '-)
"We all knew that back in 1930'Th!"

Nobody can compete against the person with this slogan John.
__________________
"Our youth [...] have bad manners, contempt for authority; they show disrespect for their elders, contradict their parents, [...] and tyrannize their teachers.” -- Plato, 447-367 BCE
  Reply With Quote
Old 31st October 2012, 09:20 PM   #28745
diyAudio Member
 
scott wurcer's Avatar
 
Join Date: Jan 2004
Location: cambridge ma
Quote:
Originally Posted by john curl View Post
Well, we are at stage 2: 'It exists, but it is not important.' '-)
It better not be or you, Nelson, and Chales Hansen are in trouble! .

Please read the results, even the lowly AD712 does't register. AD797 UNDEGENERATED bi-polar, no reading, no PIM, no TIM, results even from your side. Don't get me wrong a 50 cent op-amp might be 5 orders of magnitudes DIFFERENT than a ZEN amp, I think the door is open now to find one of those euphonic colorations that causes preference. We might want add lots of PIM for the right sound after all most mechanical forms of recording are packed with it..
__________________
Silence is so accurate.

Last edited by scott wurcer; 31st October 2012 at 09:27 PM.
  Reply With Quote
Old 31st October 2012, 09:32 PM   #28746
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
Scott; working on a "grand piano" effect for bass guitar I discovered that PIM is useless, it causes NASTY sound. Let's forget about "euphonic" epithets for this phenomena.

If people still prefer "you, Nelson, and Chales Hansen" let's search for the answer in the different dimensions.
__________________
"Our youth [...] have bad manners, contempt for authority; they show disrespect for their elders, contradict their parents, [...] and tyrannize their teachers.” -- Plato, 447-367 BCE
  Reply With Quote
Old 31st October 2012, 09:35 PM   #28747
diyAudio Member
 
Esperado's Avatar
 
Join Date: Jul 2011
Location: France
Quote:
Originally Posted by scott wurcer View Post
I think the door is open now to find one of those euphonic colorations that causes preference.
__________________
Ultimate Protection and more.The Only Source of Knowledge is experience, everything else is just information” ©A. Einstein
  Reply With Quote
Old 31st October 2012, 09:38 PM   #28748
1audio is offline 1audio  United States
diyAudio Member
 
Join Date: Mar 2004
Location: SF Bay Area
Blog Entries: 3
Quote:
Originally Posted by scott wurcer View Post
It better not be or you, Nelson, and Chales Hansen are in trouble! .

Please read the results, even the lowly AD712 does't register. AD797 UNDEGENERATED bi-polar, no reading, no PIM, no TIM, results even from your side. Don't get me wrong a 50 cent op-amp might be 5 orders of magnitudes DIFFERENT than a ZEN amp, I think the door is open now to find one of those euphonic colorations that causes preference. We might want add lots of PIM for the right sound after all most mechanical forms of recording are packed with it..
Good insight. I brought this observation up to Jan at AES. All we need is a flutter generator with the right modulation spectrum to get class A sound. People seem to prefer an LP cut from a digital master to the original digital master that is not available. All you get is a collection of distortions plus noise in the lp but people love it. I have also heard that running a track through a tape recorder (in and out) to add some tape "sweetening" like flutter and noise with some saturation distortion "enhances" the sound.

We have been pursuing the wrong goal all along.
__________________
Demian Martin
Product Design Services
  Reply With Quote
Old 31st October 2012, 09:40 PM   #28749
diyAudio Member
 
scott wurcer's Avatar
 
Join Date: Jan 2004
Location: cambridge ma
Quote:
Originally Posted by Wavebourn View Post
Scott; working on a "grand piano" effect for bass guitar I discovered that PIM is useless, it causes NASTY sound. Let's forget about "euphonic" epithets for this phenomena.

If people still prefer "you, Nelson, and Chales Hansen" let's search for the answer in the different dimensions.
I said it last week, I don't think this will lead to many answers just having some fun. Trick or Treat!

__________________
Silence is so accurate.
  Reply With Quote
Old 31st October 2012, 09:47 PM   #28750
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
Quote:
Originally Posted by 1audio View Post
We have been pursuing the wrong goal all along.
Congratulations Demian!

Now you have a chance to start perusing an another goal. You heard already an example how Nelson speaking about added on purpose distortions even turning away from microphones sounded like Nelson speaking in the big room away from microphones, but louder. And no more distortions were needed so hear that it was Nelson Pass speaking turning away from microphones.

Let's speak of systems that work humbly, as if they don't exist at all?
__________________
"Our youth [...] have bad manners, contempt for authority; they show disrespect for their elders, contradict their parents, [...] and tyrannize their teachers.” -- Plato, 447-367 BCE
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 05:53 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2