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John Curl's Blowtorch preamplifier part II
John Curl's Blowtorch preamplifier part II
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Old 11th December 2011, 10:03 PM   #19011
Joshua_G is offline Joshua_G  Israel
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Quote:
Originally Posted by Wavebourn View Post
Possibly you don't mean my humble person, Joshua?

As people know, I always calibrate measurements with listenings, and listenings with measurements. You know, it helps sometimes more than correlating thinkings with readings.
I'm pleased to hear it.
Now, in your listening evaluations, did you ever note any difference in sound between different power cords? Did you ever try different power cords?
 
Old 11th December 2011, 10:07 PM   #19012
Wavebourn is offline Wavebourn  United States
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John Curl's Blowtorch preamplifier part II
Joshua;
if you want I can introduce you to one designer in Israel. He is not famous among manufacturers and reviewers because he is perfectionist; he has golden ears and great experience in audio design. Nothing can satisfy him, but may be you can stop his endless improvements saying that his system sounds already nice, better than some other very expensive systems, and it is the time to start manufacturing in order to satisfy listeners?
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Old 11th December 2011, 10:13 PM   #19013
Wavebourn is offline Wavebourn  United States
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John Curl's Blowtorch preamplifier part II
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Originally Posted by Joshua_G View Post
Did you ever try different power cords?
I did try different approach that renders such tests meaningless: filtering and stabilizing of voltages and currents. Also, transformer balanced inputs help a lot... According to my experience resources are always limited, contradict each other, and have to be applied where they give better results.

“Give me a lever long enough, a fulcrum strong enough and I’ll move the world” -Archimedes
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Nothing in the universe is perfect. The ideal things are the ones that are most optimal. Optimization criteria, what matters. When I hear "No Compromise Design", I want to take a sledgehammer and test how impact-proof it is.
 
Old 11th December 2011, 10:21 PM   #19014
scott wurcer is offline scott wurcer  United States
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[QUOTE=Joshua_G;2816234 Is that special fuse only for show? I doubt it, since most customers don't bother to take out the fuse and look at it.[/QUOTE]

I take out all fuses regardless. I would hope no fuse is better than any fuse, I would hate to think they contained the magic smoke.
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Last edited by scott wurcer; 11th December 2011 at 10:24 PM.
 
Old 11th December 2011, 10:22 PM   #19015
Joshua_G is offline Joshua_G  Israel
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Originally Posted by Wavebourn View Post
Joshua;
if you want I can introduce you to one designer in Israel. He is not famous among manufacturers and reviewers because he is perfectionist; he has golden ears and great experience in audio design. Nothing can satisfy him, but may be you can stop his endless improvements saying that his system sounds already nice, better than some other very expensive systems, and it is the time to start manufacturing in order to satisfy listeners?
Do you mean Michael? I know him.
What makes you think I'm up to convincing people to stop their endeavors to improve their sound system? I'm farther from it than I am from other galaxies.
 
Old 11th December 2011, 10:24 PM   #19016
Joshua_G is offline Joshua_G  Israel
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Originally Posted by Wavebourn View Post
I did try different approach that renders such tests meaningless: filtering and stabilizing of voltages and currents. Also, transformer balanced inputs help a lot... According to my experience resources are always limited, contradict each other, and have to be applied where they give better results.

“Give me a lever long enough, a fulcrum strong enough and I’ll move the world” -Archimedes
So, have you succeeded building an amplifier which is immune to different power cords?
 
Old 11th December 2011, 10:28 PM   #19017
Wavebourn is offline Wavebourn  United States
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John Curl's Blowtorch preamplifier part II
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Do you mean Michael? I know him.
What makes you think I'm up to convincing people to stop their endeavors to improve their sound system? I'm farther from it than I am from other galaxies.
No, I mean another one, Alex Z. He uses batteries to power vacuum tube phono corrector with LR networks... If you are satisfied by AC powered solid state corrector with RC networks you can probably convince him, no?
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Nothing in the universe is perfect. The ideal things are the ones that are most optimal. Optimization criteria, what matters. When I hear "No Compromise Design", I want to take a sledgehammer and test how impact-proof it is.
 
Old 11th December 2011, 10:29 PM   #19018
Wavebourn is offline Wavebourn  United States
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John Curl's Blowtorch preamplifier part II
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Originally Posted by Joshua_G View Post
So, have you succeeded building an amplifier which is immune to different power cords?
Always.
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Nothing in the universe is perfect. The ideal things are the ones that are most optimal. Optimization criteria, what matters. When I hear "No Compromise Design", I want to take a sledgehammer and test how impact-proof it is.
 
Old 11th December 2011, 10:35 PM   #19019
Joshua_G is offline Joshua_G  Israel
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I take out all fuses regardless. I would hope no fuse is better than any fuse, I would hate to think they contained the magic smoke.
You are welcome to do with your audio gear whatever you please.
I do things differently, that is, I listen to changes prior to deciding anything.
I'm going to try different fuses after the CDP will finis its' burning in.
However I have a feeling that none participating in this thread (other than maybe Thorsten) is actually interested in my findings.
In my other pieces of gear to my audio setup, different fuses definitely mad a change to the sound. However, it seems to me that none who is adhering to ones' beliefs religiously is going to let oneself be confused by facts.
So I let it be.
Each to ones' own.
I only wonder what is the motivation of some people to tell me what I hear and what I don't hear, what have an impact on the sound of my setup and what doesn't.
 
Old 11th December 2011, 10:42 PM   #19020
TonyTecson is offline TonyTecson  Philippines
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John Curl's Blowtorch preamplifier part II
^and the millions of Japanese amps sold the world over....with their dinky power cords.....says that power cords are never an issue......

unless of course they are of the cheap china jobs using substandard copper wires that look like they were made out of brass.....
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