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Question About Amplifier Output Filter
Question About Amplifier Output Filter
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Old 15th February 2009, 11:41 PM   #1
fastcat95 is offline fastcat95  United States
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Join Date: Jul 2003
Location: Indiana
Default Question About Amplifier Output Filter

Hello:

I have a solid state power amplifier (B&K ST140) that has a
sort of filter on the output stage just before going to the
output posts. There is a 1200 ohm resistor in parallel with
a 0.1 uF film capacitor between the output and ground.

Can anyone tell me what this does? Does it roll off high
frequency response above a point?

Thanks!

fastcat
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Old 16th February 2009, 12:19 AM   #2
llwhtt is offline llwhtt  United States
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Join Date: Jun 2008
Location: SoCal
Google "Zobel network" and you'll have your answer.

Craig
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