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John Curl's Blowtorch preamplifier part II
John Curl's Blowtorch preamplifier part II
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Old 26th February 2014, 12:57 AM   #48661
a.wayne is offline a.wayne  United States
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Yeah .... Some people cant be helped ... Got the DQ10 up and running yet..?
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Old 26th February 2014, 01:24 AM   #48662
scott wurcer is offline scott wurcer  United States
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Originally Posted by a.wayne View Post
Yeah .... Some people cant be helped ... Got the DQ10 up and running yet..?
Same mancave construction issues, a project in process. I have a few Hafler 220's that need a checkout so they can be brought on line, the rest will probably be scratch built from my 40 yrs. of 8-legs output. Pushing $700,000,000.00 not bad.
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Old 26th February 2014, 01:33 AM   #48663
RNMarsh is offline RNMarsh  United States
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John Curl's Blowtorch preamplifier part II
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I like neither lots of bass nor loud music in general. Listened to some nice Hindustani devotional music last night.
Oh. OK. Classical Hindu music is pretty light on bass thats true. And never sounds very loud. Peaceful. Easy on the ears as it is on a sound system.

-RM
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Old 26th February 2014, 03:21 AM   #48664
john curl is offline john curl  United States
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Well, did everyone who can appreciate applied research find the article useful to show how the paradigm of the 'stability' of pure copper or any other metal is an illusion? That is why break-in is possible and often very useful.
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Last edited by john curl; 26th February 2014 at 03:33 AM.
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Old 26th February 2014, 03:34 AM   #48665
john curl is offline john curl  United States
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Think "lowest energy state' or 'BEST FIT'.
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Old 26th February 2014, 03:40 AM   #48666
auplater is offline auplater  United States
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More likely incorrect interpretation and assessment, and attribution of irrelevant information
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Old 26th February 2014, 03:56 AM   #48667
elektroj is offline elektroj  Europe
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Originally Posted by john curl View Post
Well, did everyone who can appreciate applied research find the article useful to show how the paradigm of the 'stability' of pure copper or any other metal is an illusion? That is why break-in is possible and often very useful.
Thanks John, that excerpt from the book is very interesting. I need some time to digest it.
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Old 26th February 2014, 04:42 AM   #48668
scott wurcer is offline scott wurcer  United States
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More likely incorrect interpretation and assessment, and attribution of irrelevant information
Good try, the posse here is against you.
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Old 26th February 2014, 05:31 AM   #48669
elektroj is offline elektroj  Europe
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Good try, the posse here is against you.
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Old 26th February 2014, 05:52 AM   #48670
VladimirK is offline VladimirK  Uzbekistan
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Depending on the resolution of your system (including speakers).... there can be a noticable change in sound character at first turn-on to final burn-in/cycling period. Eventually, the sound stablizes and doesnt change anymore except the first few seconds/minutes after turn on. A good amount of it had to do, IMO, to electrolytic caps not being fully formed or annealed at the factory.
This is a very reasonable observation, in case if electrolytics are permitted to play in the signal paths. But even if there are no essential role of electrolytics (some schematics exclude it), film caps (those with metallized films more than with melal foils) also demonstrate notable sound adjustment (improvement) due to burn-in, and similar examples could be continued.
Also would like to add, that audio is a mix of technical and "audiophile" things, nobody could convince a person to buy that among equally measuring amps there MKT melallized caps are used, instead of the amp with copper-foil film caps, supposed the prices are equal.

Last edited by VladimirK; 26th February 2014 at 06:21 AM.
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