Balanced operation of Zen Variation ?

rothko · 14th May 2002, 09:29 AM

"You can operate this one balanced for about
70 watts into 8 ohms with even lower distortion. "
I find this sentence in the documentation of Zen Variation-Part3 --- Outro
Does it mean that I can connect two Zen in balanced mode like SOZ?

If balanced operation of Zen Variation-Part3 is possible, can I remove output capacitor?
How can I modify Zen Variation-Part3 circuit fit to balanced operation?

Which one will be better between SOZ and Balanced-Zen?

AudioFreak · 14th May 2002, 01:57 PM

Quote:

Originally posted by rothko
"You can operate this one balanced for about
70 watts into 8 ohms with even lower distortion. "
I find this sentence in the documentation of Zen Variation-Part3 --- Outro
Does it mean that I can connect two Zen in balanced mode like SOZ?

Yes. Just invert the signal one amp input and use the active output (-ve on the schematic) of each amp.

Quote:

If balanced operation of Zen Variation-Part3 is possible, can I remove output capacitor?

I am not 100% sure on this but i'd tend not to do this as there will then quite a bit of dc at the input which might flow back into your preamp.

Quote:

How can I modify Zen Variation-Part3 circuit fit to balanced operation?

Just make 2 and feed each one from it's own signal

Quote:

Which one will be better between SOZ and Balanced-Zen?

I'd tend to use the Penultimate Zen in balanced mode rather than SOZ as the efficiency is something like an order of magnitude better and with the addition of the aleph current source and the input buffer that is yet to come, i would anticipate that the quality of the audio output will be quite good indeed.

Hoffmeyer · 14th May 2002, 07:19 PM

Hi there.

Quote:

Yes. Just invert the signal one amp input and use the active output (-ve on the schematic) of each amp.

I agree.

Quote:

If balanced operation of Zen Variation-Part3 is possible, can I remove output capacitor?

Yes, as long as the DC-offset are the same at both amplifier-outputs.

rothko · 15th May 2002, 08:35 AM

Thank you for your reply.

I'll wait for Zen part4, then try balanced-Zen.

Which pre-amp maybe better for balanced-Zen between BOSOZ and Aleph P1.7?

14th May 2002, 09:29 AM	#1
rothko diyAudio Member Join Date: Jan 2002 Location: Seoul	Balanced operation of Zen Variation ? "You can operate this one balanced for about 70 watts into 8 ohms with even lower distortion. " I find this sentence in the documentation of Zen Variation-Part3 --- Outro Does it mean that I can connect two Zen in balanced mode like SOZ? If balanced operation of Zen Variation-Part3 is possible, can I remove output capacitor? How can I modify Zen Variation-Part3 circuit fit to balanced operation? Which one will be better between SOZ and Balanced-Zen? __________________ Rothko

15th May 2002, 08:35 AM	#4
rothko diyAudio Member Join Date: Jan 2002 Location: Seoul	Thank you for your reply. I'll wait for Zen part4, then try balanced-Zen. Which pre-amp maybe better for balanced-Zen between BOSOZ and Aleph P1.7? __________________ Rothko

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