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Old 8th April 2011, 01:47 PM   #1
Frank40 is offline Frank40  Denmark
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Default input impedens of Krell KSA 100

Hello to you all

Is there someone that can help me. I need to know the input impedens for a Krell KSA 100, in order to calulate the cap. I need to make a simple 80Hz high pass filter.

Lost my diagram when my old computer crached.

Thanks in advance
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Old 8th April 2011, 07:24 PM   #2
Frank40 is offline Frank40  Denmark
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Got the name wrong. It's KSA-100S
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Old 9th April 2011, 01:24 AM   #3
djoffe is offline djoffe  United States
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Default Zin

This link says that Zin is 47K

http://www.krellonline.com/assets/su...SERIES_MAN.pdf

so a first order high pass at 80 Hz would be done with 42.33 nF
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Old 9th April 2011, 10:21 AM   #4
Frank40 is offline Frank40  Denmark
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Thanks djoffe

Got some 22nF two of them in parallel = 44nF, thats will work nicely.
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