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In Reply to: RE: Dynaco PAS3 dash II - the I is posted by Story on October 13, 2021 at 03:48:02
Can someone post a schematic or name a preamplifier that actually did use an output coupling capacitor as low in value as .01 or .01uF? I'm curious.
I would argue that in the "modern" era (say 1965 to the present), no phono or linestage used such a low value of coupling capacitor, unless it was designed specifically to cut off low frequencies above some set frequency, or it was designed specifically to be mated to an upstream component with a very high input Z. I am just curious to be proven wrong, if I am wrong. And this is only a discussion; my ego is not at stake.
Follow Ups:
nt
your points about more modern design is good and since lowering the accepted output impedances (like using cathode drive for the output) to a medium or low value is the key to prevent hum pickup, which can be a real pita. Hope you didn't get me wrong.
I run my preamp to amp connection with good unbalanced cable 20 feet with absolute quiet. My house, AC wiring, and system makes it possible but I understand the frustrations of many when it comes to system integration.
Cheers to ya
your point still holds
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