John Curl's Blowtorch preamplifier part IV

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Right like this capacitor has -120dB distortion but this one has -123dB distortion if that isn't wanking I don't know what is. BTW your spell checker is failing you.

Nope, thats not it. I've already been over that in great detail.

BTW yes, I dont care that much if my spelll checker gets corrrection or not. Grammer checker doesnt work well also.



🙂


THx-RNMarsh
Enjoying life in Bangkok
 
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Two comments regarding Scott's statements:
The Bybee that Scott opened had a COATING, either underneath or on top of the foil inside and that is the ACTIVE ingredient.

Today in a U-tube interview, Darrel Wilson of Wilson Audio said that further research in making Rel. caps has sometimes produced superior sounding caps that measure exactly the same (for typical measurements) that just sound better. No specific understanding of WHY is yet known. That's the world that I live in.
 
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Two comments regarding Scott's statements:
The Bybee that Scott opened had a COATING, either underneath or on top of the foil inside and that is the ACTIVE ingredient.

Today in a U-tube interview, Darrel Wilson of Wilson Audio said that further research in making Rel. caps has sometimes produced superior sounding caps that measure exactly the same (for typical measurements) that just sound better. No specific understanding of WHY is yet known. That's the world that I live in.

This is going to set Scott's head on fire.... but here goes.... You know that ESL we talked about? Well, Sallie Reynolds and myself were visiting Richard Lees because he wanted to do a capacitor listening test and see what we thought, if anything.

We blind listened to various caps, back and forth and he was changing caps .. said it was a coupling cap app. Eventually, after about 6 hours of listening to an unfamiliar system but of pretty high resolution, all three of us learned the sound characteristic differences and could describe a cap by its sound. The cap which was most accurate to the 3 of us was the same one.

It is the polystyrene tin foil and high tin solder on plates and tin plated OFC copper lead. The one with the best dielectric/lowest DA and fewest different metals in series.

🙂

But, it is probably just a coincidence we all described what we heard as difference between caps the same and zeroed in on the same cap as most realistic/accurate. So, feel free to ignore it. Was just sayin'.


THx-RNMarsh
 
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Eventually, after about 6 hours of listening to an unfamiliar system but of pretty high resolution, all three of us learned the sound characteristic differences and could describe a cap by its sound. The cap which was most accurate to the 3 of us was the same one.

Nihil sub sole novum: Herd mentality - Wikipedia

Could actually be quite a pleasant and rewarding experience, but that’s all.
 
I am sure, if we just went in and were to do a DBLT , right away, that we would not be able to detect the difference. It was very small difference taking many back and forth of the same music track to tell them apart and it was very very subtle even then.

Where used to hear larger, easier to hear cap affects is when you change a whole slew of them in a preamp/PA. The total number from say polar types to film is quite a bit easier to hear.

-RNM



THx-RNMarsh
 
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