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Old 29th December 2006, 01:09 PM   #1
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Default Balanced Zen Line Stage Output Impedance?

Hello!

I'm right if I say the output impedance of the Balanced Zen Line Stage will be ~1.5k (twice the 750ohms load resistors) in balanced in/out-mode?

Greetings,

Raphael
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Old 29th December 2006, 02:06 PM   #2
eLarson is offline eLarson  United States
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Do you have resistors from the output node to ground, too?
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Old 29th December 2006, 03:30 PM   #3
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Yes but I'm ignoring them at the moment. I think they will increase the output impedance so the impedance will be 2x750ohms + 2x 221ohms = 1942 ohms right?

Raphael
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Old 29th December 2006, 03:57 PM   #4
MikeW is offline MikeW  United States
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The output impedance will go down with resistors to ground. So will the gain.
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Old 29th December 2006, 04:12 PM   #5
flg is offline flg  United States
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I believe the 221 ohm Rs you are speaking of are in series with the output, not to ground...
Ignoring those for the moment, I believe your output impeadance will be close to 1500 ohms balanced. Actually slightly less
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Old 29th December 2006, 04:29 PM   #6
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Yes, you are right. My mistake.
I'm only interested in the pure output impedance. So my first idea seems to be right if you say 1.5k.

Raphael
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Old 29th December 2006, 07:38 PM   #7
eLarson is offline eLarson  United States
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1500 ohms is probably close enough, if that's all you were looking for.
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