Nocentelli JFET Boost

Here's a recent design by Nocentelli. A single JFET stage into a Baxandall EQ stage with a BJT gain recovery stage. Originally designed with an opamp gain recovery stage and no gain control, Nocentelli redesigned it for a lower parts count and easier build. I added a trimmer to the JFET stage so it's easier to bias correctly. More info here on FSB.