Balanced Zen Line Stage Output Impedance?

AudioAngel · 29th December 2006, 01:09 PM

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

eLarson · 29th December 2006, 02:06 PM

Do you have resistors from the output node to ground, too?

AudioAngel · 29th December 2006, 03:30 PM

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

MikeW · 29th December 2006, 03:57 PM

http://www.passdiy.com/legacy.htm
The output impedance will go down with resistors to ground. So will the gain.

flg · 29th December 2006, 04:12 PM

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

AudioAngel · 29th December 2006, 04:29 PM

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

eLarson · 29th December 2006, 07:38 PM

1500 ohms is probably close enough, if that's all you were looking for.

29th December 2006, 01:09 PM	#1
AudioAngel diyAudio Member Join Date: Dec 2003 Location: Verden	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

29th December 2006, 02:06 PM	#2
eLarson diyAudio Member Join Date: Aug 2002 Location: Gaithersburg, MD	Do you have resistors from the output node to ground, too? __________________ Would a woodchuck bother to chuck MDF?

29th December 2006, 03:57 PM	#4
MikeW diyAudio Member Join Date: Sep 2002 Location: North of Boston	http://www.passdiy.com/legacy.htm The output impedance will go down with resistors to ground. So will the gain. __________________ MikeW

29th December 2006, 07:38 PM	#7
eLarson diyAudio Member Join Date: Aug 2002 Location: Gaithersburg, MD	1500 ohms is probably close enough, if that's all you were looking for. __________________ Would a woodchuck bother to chuck MDF?

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29th December 2006, 03:30 PM	#3
AudioAngel diyAudio Member Join Date: Dec 2003 Location: Verden	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

29th December 2006, 04:12 PM	#5
flg diyAudio Member Join Date: Jul 2005 Location: North East	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

29th December 2006, 04:29 PM	#6
AudioAngel diyAudio Member Join Date: Dec 2003 Location: Verden	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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