There is some local feedback around X2.Looks very complicating. Is there a point with that complexity ? As it lack NFB it's also sensitive for
tube parameters..
In fact, it's very complicated and I don't know if it's worth it ... the two triodes below deal separately with frequencies between 20 and 1k, the other two from 1k to 20k.Looks very complicating. Is there a point with that complexity ? As it lack NFB it's also sensitive for
tube parameters..
Perhaps you can simplify a lot by using a passive RIAA and 2x6EM7 per channel for the amplification stages and also have a medium-low output impedance without having to use a CF. What do you think about?