Hi there,
Here are the two SDC prototypes I built. They sound amazing, so clear (compared to the donor mics) very wide frequency response, specially in the HF, but without sounding harsh. I have never heard such deep LF (around 80Hz) with those SDC. Still need to "bias" properly, but hey...
One LDC is also in the process of being built.
Only takes two FET's and one transfo to build, apart for the resistors & caps, of course.
M?
