Virtual operational amplifier series
To begin with assemble power amplifier like this,
attaching op amp and
listen to the music. If it is succesfull go to next stage.
1 Current feedback
2 Kaneta method
3 Kubota method( Another amp designer in Japan)
4 Folded cascede
5 All FET
6 Ope amp improved
7 V−FET
Assemble these circuits in discrete, and attach them 8-pins
connecter.
Then connect them and listen.