Diamond Buffer with DC Servo

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Hi guys,

I am from Germany and new here. Please excuse me if my english is not correct.
Very nice forum with a lot of experts. This is my first thread and I hope I can become a little help with my AMP. Maybe some of you can tell me if this could work or give me a few tips what I have done wrong. Many Thanks!
 

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Is R25 the value you intended? Looks like your gain switching will only give a very narrow range of gains with that value.

If you're concerned about how this sounds then the gain setting network impedance (around the opamp) looks rather low for good dynamics.

Also the output bias current potentially looks on the low side.
 
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