BOLT
THD plot i100M load 4R
FFT 1kHz OPS3 Mosfet
FFT 5kHz OPS3 Mosfet
Multitone 3kHz 4kHz 5kHz
Loop gain, AC analysis
Thanks to one of the diyaudio.com member (LC) I was able to solder this simple IPS board. It is the basic CFA design, with AC ground coupled front end. Very high speed and low distortion input stage produces well balanced smooth sound. Offset at the output of the amplifier is well maintained close to 0mV, temperature variation is very low and does not exceed more than a few mV. Some more info is coming.