hi guys, I just reveived 2nd word from the mothership regarding the inputs and voltages, I am very happy with the answer and that elektron took the time to answer me!
below the answre from my ticket …
The Analog Four inputs are +19dBu, this corresponds to around 20V peak to peak(+/-10V)
Since the internal circuit provides +/- 12V internally and the inputs are diode bridged to the power rail it is safe to input up to +/- 12V to the inputs. However the input signal will start clipping around +/- 10V.
If you input above +/- 12V the diodes will save the input from over voltage but might damage the power supply if it constantly exceeds +/- 12V.
Regards,
Olle