03-02-2018, 12:29 PM
The reason I add preamp & gain control is for line level signal, input transformer is for direct coupling from a amp output... I orignally built my 6888 without the preamp, next day I was adding it...
The low impedance of std output xfomer will likely load a line signal till it'll be unusable...
The low impedance of std output xfomer will likely load a line signal till it'll be unusable...