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Old 27th January 2013, 09:33 PM   #11
kevinkr is offline kevinkr  United States
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20KHz - 40KHz
And that might be particularly the case if the ultrasonic performance of the device in question was not particularly good.
FWIW Allen's tube based designs generally had plenty of ultrasonic headroom, but many low voltage solid state designs using global feedback may not.

Perhaps passively equalized tube phono stages of the nature I design and use are less prone to bad behavior when confronted with severe HF transients which is why I feel no compulsion to address the issue further. I do remember feeling somewhat differently before I went over to glowing bottles a quarter century ago..
"To argue with a person who has renounced the use of reason is like administering medicine to the dead." - Thomas Paine
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Old 27th January 2013, 09:39 PM   #12
sakellogg is offline sakellogg  United States
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im a bit of a lp nut too.
i find ,as state by DF96, keeping them clean an treating them well saves me from having to do the math or having to add equipment to my chain.

very interesting idea that they have. and im glad that it works for you and you like it.
but no i have never tried it.

do you have allot of noisey lp's?
i have a few but cleaning takes care of most that havent been damaged by poor care.
I'm not crazy, my mother had me tested
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Old 28th January 2013, 01:20 PM   #13
lcsaszar is offline lcsaszar  Hungary
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Since I use tube passive phono, clicks and scratches do not disturb me. They are still there, but much less noticable. I think it has nothing to do with frequency response of the preamplifier, rather with psychoacoustical masking, but I am not sure.
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