Hello. i was wondering whether i could lower the gain of this preamp by changing the resistor values of one of feedback resistors.With the original values of R14=12K and R9=1K ,the gain is 22dB. By changing R9 to 4.7K the gain is about 10dB.
But is there going to be any stability problem?
But is there going to be any stability problem?
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yes. the original schematic and the modded one are here.
Modifying Naim Audio preamps
Here is LTspice file if you want to play
Modifying Naim Audio preamps
Here is LTspice file if you want to play
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