Optimos Question - Circuit

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1965GTO

Member
Joined 2008
In this ciruit for the Optimos Amplifier there is two listed as "Opt 1 , DC Option" and Opt 2, DC Option. Can anyone expand as to what these "options" are for? I have circled in red.
 

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djk

djk

R.I.P
Joined 2001
You have a choice of back-to-back electrolytics, a single non-polar electrolytic, or no cap (a jumper).

The diode protects the cap in the feedback loop from high reverse voltages.

In amplifiers like the Adcom GFA555 and the Leach, no input cap is used. There is a cap in the feedback loop.
 
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