My MOSFET amplifier designed for music

[von Ah]

 

[Preamp]

From simulation with 100nF in the ic integrator I see a low frequency peak and with 10uF no peak.
What is the right compromise?

There's a little error in your sim schematic. R2 should connect to the negative rail and not to the output.

Try to adjust R21 together with the cap. And have an eye on the settling time, like @brian92fs said.

 

[brian92fs]

For reference, the discussion on the low frequency response hump starts at Post 1455 and extends to post 1490 at a minimum.

 

[rumors]

Sorry, big mistake (I'm visually impaired due to Glaucoma), however, yes, the adjustment increases, so I haven't read everything and I solve the problem by lowering C6 to 47uF

 

[rumors]

Series connection of C1=100n with 220K resistor also seems to work...