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Old 15th November 2015, 12:36 PM   #1
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Default I need a very good fet line preamp circuit for wm8741 dac.

Hello

I need a very good fet line preamp circuit for wm8741 dac. The WM8741 have a voltage balance output.

I include in my post the circuit of the wm8741 dac.

Thank

Bye

Gaetan
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Last edited by gaetan8888; 15th November 2015 at 12:39 PM.
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Old 20th November 2015, 10:19 PM   #2
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Hello

No reply, circuits or suggestions ?

Thank

Bye

Gaetan
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Old 20th November 2015, 10:24 PM   #3
delecoy is offline delecoy  United States
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BA3 FE
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Old 20th November 2015, 10:34 PM   #4
Luke is offline Luke  New Zealand
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borbely jfet buffer?
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Old 20th November 2015, 10:36 PM   #5
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Here's one for example.
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Old 3rd December 2015, 08:37 AM   #6
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Hello

I would connect the balanced Zen line stage output to an unbalanced input amp, do I use the Zen line stage +out as the live and the -out as the ground for my rca plug amp unbalanced input ?

And, can I use IRF640 in that Zen line stage, if so which modifications are need to use IRF640 ?

Thank

Bye

Gaetan
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Old 3rd December 2015, 08:44 AM   #7
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If it is voltage output, a push pull jfet buffer will do the job.
See the example in the Sony Vfet article part 1.
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Old 4th December 2015, 10:47 PM   #8
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Hello

How about this circuit ?

Thank

Bye

Gaetan
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Old 4th December 2015, 10:58 PM   #9
Luke is offline Luke  New Zealand
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Hi Gaeten, what is this circuit? It looks like a bipolar input Dynalo.
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Old 4th December 2015, 11:04 PM   #10
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Hello

It's from Bryston.

Bye

Gaetan
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